configure.ac

   1 # Process this file with autoconf to produce a configure script.
   2 #AC_PREREQ([2.62])
   3
   4 # when bumping version number below, keep it in sync with man/mono.1 too
   5 AC_INIT(mono, [4.9.0],
   6         [http://bugzilla.xamarin.com/enter_bug.cgi?classification=Mono])
   7
   8 AC_CONFIG_SRCDIR([README.md])
   9 AC_CONFIG_MACRO_DIR([m4])
  10 AC_CANONICAL_SYSTEM
  11 AC_CANONICAL_HOST
  12
  13 # Gross hack to enable 'make dist' on automake 1.9+tar 1.14.
  14 # The extra brackets are to foil regex-based scans.
  15 m4_ifdef([_A][M_PROG_TAR],[_A][M_SET_OPTION([tar-ustar])])
  16
  17 AM_INIT_AUTOMAKE([1.9 dist-bzip2 tar-ustar no-dist-gzip foreign subdir-objects]
  18                  m4_esyscmd([case `automake --version | head -n 1` in    # parallel-tests is default in automake 1.13+, we need to explicitly enable it
  19                              *1.11*|*1.12*) echo parallel-tests;;        # for 1.11 and 1.12 but not below as those versions don't recognize the flag
  20                              esac]))                                     # TODO: remove this hack once we require automake 1.11+
  21
  22 AC_CONFIG_HEADERS([config.h])
  23 AM_MAINTAINER_MODE
  24
  25 API_VER=2.0
  26 AC_SUBST(API_VER)
  27
  28 AC_PROG_LN_S
  29
  30 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
  31
  32 case $host_os in
  33 *cygwin* )
  34                  echo "Run configure using ./configure --host=i686-pc-mingw32"
  35                  exit 1
  36 esac
  37
  38 # In case of cygwin, override LN_S, irrespective of what it determines.
  39 # The build uses cygwin, but the actual runtime doesn't.
  40 case $host_os in
  41 *cygwin* ) LN_S='cp -p';;
  42 esac
  43
  44 #
  45 # libgc defaults
  46 #
  47 libgc_configure_args=
  48
  49 # These variables are the CPPFLAGS/CFLAGS passed to libgc's configure
  50 # libgc should inherit the original CFLAGS/CPPFLAGS passed to configure, i.e. -O0
  51 CPPFLAGS_FOR_LIBGC=$CPPFLAGS
  52 CFLAGS_FOR_LIBGC=$CFLAGS
  53 CPPFLAGS_FOR_EGLIB=$CPPFLAGS
  54 CFLAGS_FOR_EGLIB=$CFLAGS
  55 CPPFLAGS_FOR_BTLS=$CPPFLAGS
  56 CFLAGS_FOR_BTLS=$CFLAGS
  57
  58 # libgc uses some deprecated APIs
  59 CFLAGS_FOR_LIBGC="$CFLAGS -Wno-deprecated-declarations"
  60
  61 #
  62 # These are the flags that need to be stored in the mono.pc file for
  63 # compiling code that will embed Mono
  64 #
  65 libmono_cflags=""
  66 libmono_ldflags=""
  67 AC_SUBST(libmono_cflags)
  68 AC_SUBST(libmono_ldflags)
  69
  70 # Variable to have relocatable .pc files (lib, or lib64)
  71 # realpath isn't always available, and requires that all but the tip of the provided
  72 # path exists. Fall back to the old behaviour, but realpath allows depth >1
  73 # e.g. Debian puts Mono in /usr/bin and libs in /usr/lib/x86_64-linux-gnu/ which is
  74 # too deep for the old method to work
  75 reloc_libdir=`realpath --relative-to=${prefix} ${libdir} 2> /dev/null || basename ${libdir}`
  76 AC_SUBST(reloc_libdir)
  77
  78 # Set to yes if Unix sockets cannot be created in an anonymous namespace
  79 need_link_unlink=no
  80
  81 #Set to extra linker flags to be passed to the runtime binaries (mono /mono-sgen)
  82 extra_runtime_ldflags=""
  83
  84 # Thread configuration inspired by sleepycat's db
  85 AC_MSG_CHECKING([host platform characteristics])
  86 libgc_threads=no
  87 has_dtrace=no
  88 parallel_mark=yes
  89 ikvm_native=yes
  90
  91 host_win32=no
  92 target_win32=no
  93 platform_android=no
  94 host_darwin=no
  95 case "$host" in
  96         *-mingw*|*-*-cygwin*)
  97                 AC_DEFINE(DISABLE_PORTABILITY,1,[Disable the io-portability layer])
  98                 AC_DEFINE(PLATFORM_NO_SYMLINKS,1,[This platform does not support symlinks])
  99                 host_win32=yes
 100                 mono_cv_clang=no
 101                 if test "x$cross_compiling" = "xno"; then
 102                         if test "x$host" = "x$build" -a "x$host" = "x$target"; then
 103                                 target_win32=yes
 104                         fi
 105                 else
 106                         if test "x$host" = "x$target"; then
 107                                 target_win32=yes
 108                         fi
 109                 fi
 110                 HOST_CC="gcc"
 111                 # Windows Vista or later is required
 112                 CPPFLAGS="$CPPFLAGS -DWINVER=0x0600 -D_WIN32_WINNT=0x0600 -D_WIN32_IE=0x0501 -D_UNICODE -DUNICODE -DWIN32_THREADS -DFD_SETSIZE=1024"
 113                 LDFLAGS="$LDFLAGS -lmswsock -lws2_32 -lole32 -loleaut32 -lpsapi -lversion -ladvapi32 -lwinmm -lkernel32 -liphlpapi"
 114                 libmono_cflags="-mms-bitfields -mwindows"
 115                 libmono_ldflags="-mms-bitfields -mwindows"
 116                 libdl=
 117                 libgc_threads=win32
 118                 with_sigaltstack=no
 119                 with_tls=pthread
 120                 with_sgen_default_concurrent=yes
 121                 LN_S=cp
 122                 # This forces libgc to use the DllMain based thread registration code on win32
 123                 libgc_configure_args="$libgc_configure_args --enable-win32-dllmain=yes"
 124                 ;;
 125         *-*-*netbsd*)
 126                 CPPFLAGS="$CPPFLAGS -D_REENTRANT -DGC_NETBSD_THREADS -D_GNU_SOURCE"
 127                 libmono_cflags="-D_REENTRANT"
 128                 LDFLAGS="$LDFLAGS -pthread"
 129                 CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD"
 130                 libmono_ldflags="-pthread"
 131                 need_link_unlink=yes
 132                 libdl="-ldl"
 133                 libgc_threads=pthreads
 134                 with_sigaltstack=no
 135                 use_sigposix=yes
 136                 with_sgen_default_concurrent=yes
 137                 ;;
 138         *-*-kfreebsd*-gnu)
 139                 CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP -DUSE_MUNMAP -DTHREAD_LOCAL_ALLOC -pthread"
 140                 libmono_cflags="-D_REENTRANT -DTHREAD_LOCAL_ALLOC -pthread"
 141                 libmono_ldflags="-lpthread -pthread"
 142                 libdl="-ldl"
 143                 libgc_threads=pthreads
 144                 need_link_unlink=yes
 145                 with_sigaltstack=no
 146                 use_sigposix=yes
 147                 with_sgen_default_concurrent=yes
 148                 ;;
 149         *-*-*freebsd*)
 150                 if test "x$PTHREAD_CFLAGS" = "x"; then
 151                         CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS"
 152                         libmono_cflags=
 153                 else
 154                         CPPFLAGS="$CPPFLAGS $PTHREAD_CFLAGS -DGC_FREEBSD_THREADS"
 155                         libmono_cflags="$PTHREAD_CFLAGS"
 156                 fi
 157                 if test "x$PTHREAD_LIBS" = "x"; then
 158                         LDFLAGS="$LDFLAGS -pthread -L/usr/local/lib"
 159                         libmono_ldflags="-pthread"
 160                 else
 161                         LDFLAGS="$LDFLAGS $PTHREAD_LIBS -L/usr/local/lib"
 162                         libmono_ldflags="$PTHREAD_LIBS"
 163                 fi
 164                 CPPFLAGS="$CPPFLAGS -DPLATFORM_BSD"
 165                 need_link_unlink=yes
 166                 AC_DEFINE(PTHREAD_POINTER_ID, 1, [pthread is a pointer])
 167                 libdl=
 168                 libgc_threads=pthreads
 169                 use_sigposix=yes
 170                 has_dtrace=yes
 171                 with_sgen_default_concurrent=yes
 172                 ;;
 173         *-*-*openbsd*)
 174                 CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_OPENBSD_THREADS -DPLATFORM_BSD -D_REENTRANT -DUSE_MMAP"
 175                 if test "x$disable_munmap" != "xyes"; then
 176                 CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
 177                 fi
 178                 libmono_cflags="-D_THREAD_SAFE -D_REENTRANT"
 179                 LDFLAGS="$LDFLAGS -pthread"
 180                 need_link_unlink=yes
 181                 AC_DEFINE(PTHREAD_POINTER_ID)
 182                 libdl=
 183                 libgc_threads=pthreads
 184                 with_sigaltstack=no
 185                 use_sigposix=yes
 186                 with_sgen_default_concurrent=yes
 187                 ;;
 188         *-*-linux-android*)
 189                 platform_android=yes
 190                 AC_DEFINE(PLATFORM_ANDROID,1,[Targeting the Android platform])
 191                 AC_DEFINE(TARGET_ANDROID,1,[Targeting the Android platform])
 192
 193                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
 194                 if test "x$disable_munmap" != "xyes"; then
 195                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
 196                 fi
 197                 libmono_cflags="-D_REENTRANT"
 198                 libdl="-ldl"
 199                 libgc_threads=pthreads
 200                 use_sigposix=yes
 201
 202                 with_tls=pthread
 203                 with_sigaltstack=no
 204                 with_static_mono=no
 205
 206                 # Android doesn't support boehm, as it's missing <link.h>
 207                 support_boehm=no
 208                 with_gc=sgen
 209
 210                 # isinf(3) requires -lm; see isinf check below
 211                 LDFLAGS="$LDFLAGS -lm"
 212
 213                 # Bionic's <pthread.h> sets PTHREAD_STACK_MIN=2*PAGE_SIZE; doesn't define
 214                 # PAGE_SIZE; breaks mono/io-layer/collection.c
 215                 # Bionic doesn't provide S_IWRITE; breaks io-layer/io.c
 216                 CFLAGS="$CFLAGS -DPAGE_SIZE=4096 -DS_IWRITE=S_IWUSR"
 217                 CXXFLAGS="$CXXFLAGS -DPAGE_SIZE=4096 -DS_IWRITE=S_IWUSR"
 218
 219                 # The configure check can't detect this
 220                 AC_DEFINE(HAVE_LARGE_FILE_SUPPORT, 1, [Have large file support])
 221
 222                 # to bypass the underscore linker check, can't work when cross-compiling
 223                 mono_cv_uscore=yes
 224                 mono_cv_clang=no
 225                 ;;
 226         *-*-linux*)
 227                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
 228                 if test "x$disable_munmap" != "xyes"; then
 229                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
 230                 fi
 231                 libmono_cflags="-D_REENTRANT"
 232                 libdl="-ldl"
 233                 libgc_threads=pthreads
 234                 use_sigposix=yes
 235                 if test "x$cross_compiling" != "xno"; then
 236                         # to bypass the underscore linker check, not
 237                         # available during cross-compilation
 238                         mono_cv_uscore=no
 239                 fi
 240                 case "$host" in
 241                 aarch64-*)
 242                         support_boehm=no
 243                         with_gc=sgen
 244                         ;;
 245                 powerpc*-*-linux*)
 246                         # https://bugzilla.novell.com/show_bug.cgi?id=504411
 247                         disable_munmap=yes
 248                         ;;
 249                 esac
 250                 with_sgen_default_concurrent=yes
 251                 ;;
 252         *-*-nacl*)
 253                 CPPFLAGS="$CPPFLAGS -DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP"
 254                 if test "x$disable_munmap" != "xyes"; then
 255                         CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
 256                 fi
 257                 libmono_cflags="-D_REENTRANT"
 258                 libdl=
 259                 libgc_threads=pthreads
 260                 use_sigposix=yes
 261                 ikvm_native=no
 262                 AC_DEFINE(DISABLE_SOCKETS,1,[Disable sockets support])
 263                 AC_DEFINE(DISABLE_ATTACH, 1, [Disable agent attach support])
 264                 ;;
 265         *-*-hpux*)
 266                 CPPFLAGS="$CPPFLAGS -DGC_HPUX_THREADS -D_HPUX_SOURCE -D_XOPEN_SOURCE_EXTENDED -D_REENTRANT"
 267                 # +ESdbgasm only valid on bundled cc on RISC
 268                 # silently ignored for ia64
 269                 if test $GCC != "yes"; then
 270                         CFLAGS="$CFLAGS +ESdbgasm"
 271                         # Arrange for run-time dereferencing of null
 272                         # pointers to produce a SIGSEGV signal.
 273                         LDFLAGS="$LDFLAGS -z"
 274                 fi
 275                 CFLAGS="$CFLAGS +ESdbgasm"
 276                 LDFLAGS="$LDFLAGS -z"
 277                 libmono_cflags="-D_REENTRANT"
 278                 libmono_ldflags="-lpthread"
 279                 libgc_threads=pthreads
 280                 need_link_unlink=yes
 281                 use_sigposix=yes
 282                 ;;
 283         *-*-solaris*)
 284                 CPPFLAGS="$CPPFLAGS -DGC_SOLARIS_THREADS -DGC_SOLARIS_PTHREADS -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -DUSE_MMAP -DUSE_MUNMAP -DPLATFORM_SOLARIS"
 285                 need_link_unlink=yes
 286                 libmono_cflags="-D_REENTRANT"
 287                 libgc_threads=pthreads
 288                 has_dtrace=yes
 289                 use_sigposix=yes
 290                 enable_solaris_tar_check=yes
 291                 ;;
 292         *-*-darwin*)
 293                 parallel_mark="Disabled_Currently_Hangs_On_MacOSX"
 294                 host_darwin=yes
 295                 target_mach=yes
 296                 CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE -DGC_MACOSX_THREADS -DPLATFORM_MACOSX -DUSE_MMAP -DUSE_MUNMAP"
 297                 libmono_cflags="-D_THREAD_SAFE"
 298                 need_link_unlink=yes
 299                 AC_DEFINE(PTHREAD_POINTER_ID)
 300                 AC_DEFINE(USE_MACH_SEMA, 1, [...])
 301                 libdl=
 302                 libgc_threads=pthreads
 303                 has_dtrace=yes
 304                 if test "x$cross_compiling" = "xyes"; then
 305                         has_broken_apple_cpp=yes
 306                 fi
 307                 dnl Snow Leopard is horribly broken -- it reports itself as i386-apple-darwin*, but
 308                 dnl its gcc defaults to 64-bit mode.  They have also deprecated the usage of ucontext
 309                 dnl we need to set some flags to build our 32-bit binaries on 10.6 properly
 310                 case "$host" in
 311                         dnl Snow Leopard and newer config.guess reports as this
 312                         i*86-*-darwin*)
 313                                 BROKEN_DARWIN_FLAGS="-arch i386 -D_XOPEN_SOURCE"
 314                                 BROKEN_DARWIN_CPPFLAGS="-D_XOPEN_SOURCE"
 315                                 CPPFLAGS="$CPPFLAGS $BROKEN_DARWIN_CPPFLAGS"
 316                                 CFLAGS="$CFLAGS $BROKEN_DARWIN_FLAGS"
 317                                 CXXFLAGS="$CXXFLAGS $BROKEN_DARWIN_FLAGS"
 318                                 CCASFLAGS="$CCASFLAGS $BROKEN_DARWIN_FLAGS"
 319                                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC $BROKEN_DARWIN_CPPFLAGS"
 320                                 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC $BROKEN_DARWIN_FLAGS"
 321                                 CPPFLAGS_FOR_EGLIB="$CPPFLAGS_FOR_EGLIB $BROKEN_DARWIN_CPPFLAGS"
 322                                 CFLAGS_FOR_EGLIB="$CFLAGS_FOR_EGLIB $BROKEN_DARWIN_FLAGS"
 323                                 with_sgen_default_concurrent=yes
 324                                 ;;
 325                         x*64-*-darwin*)
 326                                 with_sgen_default_concurrent=yes
 327                                 ;;
 328                         arm*-darwin*)
 329                                 has_dtrace=no
 330                                 ;;
 331                 esac
 332                 ;;
 333         *-*-haiku*)
 334                 CPPFLAGS="$CPPFLAGS -D_REENTRANT -D_THREAD_SAFE"
 335                 libmono_cflags="-D_REENTRANT -D_THREAD_SAFE"
 336                 libdl=
 337                 LIBS="$LIBS -lnetwork"
 338                 need_link_unlink=yes
 339                 AC_DEFINE(PTHREAD_POINTER_ID)
 340                 libgc_threads=pthreads
 341                 use_sigposix=yes
 342                 ;;
 343         *)
 344                 AC_MSG_WARN([*** Please add $host to configure.ac checks!])
 345                 libdl="-ldl"
 346                 ;;
 347 esac
 348 AC_MSG_RESULT(ok)
 349
 350 if test x$need_link_unlink = xyes; then
 351    AC_DEFINE(NEED_LINK_UNLINK, 1, [Define if Unix sockets cannot be created in an anonymous namespace])
 352 fi
 353
 354 if test x$host_win32 = xyes; then
 355    AC_DEFINE(HOST_WIN32, 1, [Host Platform is Win32])
 356 fi
 357
 358 if test x$target_win32 = xyes; then
 359    AC_DEFINE(TARGET_WIN32, 1, [Target Platform is Win32])
 360 fi
 361
 362 # Defined for all targets/platforms using classic Windows API support.
 363 AC_DEFINE(HAVE_CLASSIC_WINAPI_SUPPORT, 1, [Use classic Windows API support])
 364 AC_DEFINE(HAVE_UWP_WINAPI_SUPPORT, 0, [Don't use UWP Windows API support])
 365
 366 AC_SUBST(extra_runtime_ldflags)
 367 AM_CONDITIONAL(HOST_WIN32, test x$host_win32 = xyes)
 368 AM_CONDITIONAL(TARGET_WIN32, test x$target_win32 = xyes)
 369 AM_CONDITIONAL(PLATFORM_LINUX, echo x$target_os | grep -q linux)
 370 AM_CONDITIONAL(PLATFORM_DARWIN, test x$host_darwin = xyes)
 371 AM_CONDITIONAL(PLATFORM_SIGPOSIX, test x$use_sigposix = xyes)
 372 AM_CONDITIONAL(PLATFORM_ANDROID, test x$platform_android = xyes)
 373
 374 if test -z "$PLATFORM_DARWIN_TRUE"; then :
 375 PLATFORM_AOT_SUFFIX=.dylib
 376 fi
 377
 378 if test -z "$PLATFORM_LINUX_TRUE"; then :
 379 PLATFORM_AOT_SUFFIX=.so
 380 fi
 381
 382 AC_SUBST(PLATFORM_AOT_SUFFIX)
 383
 384 ## PLATFORM_AOT_SUFFIX not so simple for windows :-)
 385
 386 AC_CHECK_TOOL(CC, gcc, gcc)
 387 AC_PROG_CC
 388 AC_CHECK_TOOL(CXX, g++, g++)
 389 AC_PROG_CXX
 390 AM_PROG_AS
 391 AC_PROG_INSTALL
 392 AC_PROG_AWK
 393 AM_PROG_CC_C_O
 394 dnl We should use AM_PROG_AS, but it's not available on automake/aclocal 1.4
 395 : ${CCAS='$(CC)'}
 396 # Set ASFLAGS if not already set.
 397 : ${CCASFLAGS='$(CFLAGS)'}
 398 AC_SUBST(CCAS)
 399 AC_SUBST(CCASFLAGS)
 400
 401 # AC_PROG_CXX helpfully sets CXX to g++ even if no c++ compiler is found so check
 402 # GXX instead. See http://lists.gnu.org/archive/html/bug-autoconf/2002-04/msg00056.html
 403 if test "x$CXX" = "xg++"; then
 404         if test "x$GXX" != "xyes"; then
 405                 # automake/libtool is so broken, it requires g++ even if the c++ sources
 406                 # are inside automake conditionals
 407                 AC_MSG_ERROR([You need to install g++])
 408         fi
 409 fi
 410
 411 dnl may require a specific autoconf version
 412 dnl AC_PROG_CC_FOR_BUILD
 413 dnl CC_FOR_BUILD not automatically detected
 414 CC_FOR_BUILD=$CC
 415 CFLAGS_FOR_BUILD=$CFLAGS
 416 BUILD_EXEEXT=
 417 if test "x$cross_compiling" = "xyes"; then
 418         CC_FOR_BUILD=cc
 419         CFLAGS_FOR_BUILD=
 420         BUILD_EXEEXT=""
 421 fi
 422 AC_SUBST(CC_FOR_BUILD)
 423 AC_SUBST(CFLAGS_FOR_BUILD)
 424 AC_SUBST(HOST_CC)
 425 AC_SUBST(BUILD_EXEEXT)
 426
 427 AM_CONDITIONAL(CROSS_COMPILING, [test x$cross_compiling = xyes])
 428 AM_CONDITIONAL(USE_BATCH_FILES, [test x$host_win32 = xyes -a x$cross_compiling = xyes])
 429
 430 # Set STDC_HEADERS
 431 AC_HEADER_STDC
 432 AC_LIBTOOL_WIN32_DLL
 433 # This causes monodis to not link correctly
 434 #AC_DISABLE_FAST_INSTALL
 435
 436 #lookup makedev() header
 437 AC_HEADER_MAJOR
 438
 439 AM_PROG_LIBTOOL
 440 # Use dolt (http://dolt.freedesktop.org/) instead of libtool for building.
 441 DOLT
 442
 443 export_ldflags=`(./libtool --config; echo eval echo \\$export_dynamic_flag_spec) | sh`
 444 AC_SUBST(export_ldflags)
 445
 446 # Test whenever ld supports -version-script
 447 AC_PROG_LD
 448 AC_PROG_LD_GNU
 449
 450 AM_ICONV()
 451
 452 AC_CHECK_HEADERS(sys/filio.h sys/sockio.h netdb.h utime.h sys/utime.h semaphore.h sys/un.h linux/rtc.h sys/syscall.h sys/mkdev.h sys/uio.h sys/param.h sys/sysctl.h libproc.h sys/prctl.h)
 453 AC_CHECK_HEADERS(sys/param.h sys/socket.h sys/ipc.h sys/utsname.h alloca.h ucontext.h pwd.h sys/select.h netinet/tcp.h netinet/in.h unistd.h sys/types.h link.h asm/sigcontext.h sys/inotify.h arpa/inet.h complex.h unwind.h)
 454 AC_CHECK_HEADERS([linux/netlink.h linux/rtnetlink.h],
 455                   [], [], [#include <stddef.h>
 456                   #include <sys/socket.h>
 457                   #include <linux/socket.h>])
 458
 459 AC_CHECK_HEADERS(sys/user.h, [], [],
 460 [
 461 #ifdef HAVE_SYS_PARAM_H
 462 # include <sys/param.h>
 463 #endif
 464 ])
 465
 466 AC_CHECK_HEADERS(linux/serial.h)
 467
 468 AC_CHECK_HEADER(zlib.h, [have_zlib=yes], [have_zlib=no])
 469 if test x$have_zlib = xyes; then
 470    AC_TRY_COMPILE([#include <zlib.h>], [
 471    #if defined(ZLIB_VERNUM) && (ZLIB_VERNUM >= 0x1230)
 472    return 0;
 473    #else
 474    #error No good zlib found
 475    #endif
 476    ],[
 477         AC_MSG_RESULT(Using system zlib)
 478         zlib_msg="system zlib"
 479         AC_DEFINE(HAVE_SYS_ZLIB,1,[Have system zlib])
 480    ],[
 481         AC_MSG_RESULT(Using embedded zlib)
 482         have_zlib=no
 483         zlib_msg="bundled zlib"
 484    ])
 485 fi
 486
 487 AM_CONDITIONAL(HAVE_ZLIB, test x$have_zlib = xyes)
 488 AC_DEFINE(HAVE_ZLIB,1,[Have system zlib])
 489
 490 # for mono/metadata/debug-symfile.c
 491 AC_CHECK_HEADERS(elf.h)
 492
 493 # for support
 494 AC_CHECK_HEADERS(poll.h)
 495 AC_CHECK_HEADERS(sys/poll.h)
 496 AC_CHECK_HEADERS(sys/wait.h)
 497 AC_CHECK_HEADERS(grp.h)
 498 AC_CHECK_HEADERS(syslog.h)
 499
 500 # for mono/dis
 501 AC_CHECK_HEADERS(wchar.h)
 502 AC_CHECK_HEADERS(ieeefp.h)
 503 AC_MSG_CHECKING(for isinf)
 504 AC_TRY_LINK([#include <math.h>], [
 505         int f = isinf (1.0);
 506 ], [
 507         AC_MSG_RESULT(yes)
 508         AC_DEFINE(HAVE_ISINF, 1, [isinf available])
 509 ], [
 510         # We'll have to use signals
 511         AC_MSG_RESULT(no)
 512 ])
 513 # mingw
 514 AC_CHECK_FUNCS(_finite, , AC_MSG_CHECKING(for _finite in math.h)
 515         AC_TRY_LINK([#include <math.h>],
 516         [ _finite(0.0); ],
 517         AC_DEFINE(HAVE__FINITE, 1, [Have _finite in -lm]) AC_MSG_RESULT(yes),
 518         AC_MSG_RESULT(no)))
 519
 520 # for Linux statfs support
 521 AC_CHECK_HEADERS(linux/magic.h)
 522
 523 # not 64 bit clean in cross-compile
 524 AC_CHECK_SIZEOF(void *, 4)
 525
 526 AC_CACHE_CHECK([for clang],
 527         mono_cv_clang,[
 528         AC_TRY_COMPILE([], [
 529                 #ifdef __clang__
 530                 #else
 531                 #error "FAILED"
 532                 #endif
 533                 return 0;
 534         ],
 535         [mono_cv_clang=yes],
 536         [mono_cv_clang=no],
 537         [])
 538 ])
 539
 540 AC_ARG_ENABLE(visibility-hidden,
 541 [  --disable-visibility-hidden    disable usage of -fvisiblity=hidden],
 542    disable_visibility_hidden=yes, disable_visibility_hidden=no)
 543
 544 WARN=''
 545 if test x"$GCC" = xyes; then
 546         WARN='-Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-cast-qual -Wwrite-strings -Wno-switch -Wno-switch-enum -Wno-unused-value -Wno-attributes -Wno-format-zero-length'
 547
 548                 # We require C99 with some GNU extensions, e.g. `linux` macro
 549                 CFLAGS="$CFLAGS -std=gnu99"
 550
 551                 # The runtime code does not respect ANSI C strict aliasing rules
 552                 CFLAGS="$CFLAGS -fno-strict-aliasing"
 553
 554                 # We rely on signed overflow to behave
 555                 CFLAGS="$CFLAGS -fwrapv"
 556
 557                 CFLAGS="$CFLAGS -DMONO_DLL_EXPORT"
 558                 if test x"$disable_visibility_hidden" = xno; then
 559                    # Don't export any symbols by default
 560                    SHARED_CFLAGS="-fvisibility=hidden"
 561                    CFLAGS_FOR_EGLIB="$CFLAGS_FOR_EGLIB -fvisibility=hidden"
 562                    CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
 563                 fi
 564
 565                 ORIG_CFLAGS=$CFLAGS
 566                 # Check for the normal version, since gcc ignores unknown -Wno options
 567                 CFLAGS="$CFLAGS -Wunused-but-set-variable -Werror"
 568                 AC_MSG_CHECKING(for -Wno-unused-but-set-variable option to gcc)
 569                 AC_TRY_COMPILE([],[
 570                                 return 0;
 571                 ], [
 572                    AC_MSG_RESULT(yes)
 573                    CFLAGS="$ORIG_CFLAGS -Wno-unused-but-set-variable"
 574                 ], [
 575                    AC_MSG_RESULT(no)
 576                    CFLAGS=$ORIG_CFLAGS
 577                 ])
 578
 579                 if test "x$mono_cv_clang" = "xyes"; then
 580                    # https://bugzilla.samba.org/show_bug.cgi?id=8118
 581                    WARN="$WARN -Qunused-arguments"
 582                    WARN="$WARN -Wno-unused-function -Wno-tautological-compare -Wno-parentheses-equality -Wno-self-assign -Wno-return-stack-address -Wno-constant-logical-operand"
 583                    # We rely on zero length arrays in structs
 584                    WARN="$WARN -Wno-zero-length-array"
 585                 fi
 586 else
 587         # The Sun Forte compiler complains about inline functions that access static variables
 588         # so disable all inlining.
 589         case "$host" in
 590         *-*-solaris*)
 591                 CFLAGS="$CFLAGS -Dinline="
 592                 ;;
 593         esac
 594 fi
 595 CFLAGS="$CFLAGS -g $WARN"
 596 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -g"
 597 CPPFLAGS="$CPPFLAGS -g $WARN"
 598
 599 # Where's the 'mcs' source tree?
 600 if test -d $srcdir/mcs; then
 601   mcsdir=mcs
 602 else
 603   mcsdir=../mcs
 604 fi
 605
 606 AC_ARG_WITH(mcs-path, [  --with-mcs-path=/path/to/mcs      Specify an alternate mcs source tree],
 607         if test x$with_mcs_path != "x" -a -d $with_mcs_path ; then
 608                 mcsdir=$with_mcs_path
 609         fi
 610 )
 611
 612 AC_ARG_WITH(jumptables, [  --with-jumptables=yes,no      enable/disable support for jumptables (ARM-only for now) (defaults to no)],[],[with_jumptables=no])
 613
 614 #
 615 # A sanity check to catch cases where the package was unpacked
 616 # with an ancient tar program (Solaris)
 617 #
 618 AC_ARG_ENABLE(solaris-tar-check,
 619 [  --disable-solaris-tar-check    disable solaris tar check],
 620    do_solaris_tar_check=no, do_solaris_tar_check=yes)
 621
 622 if test x"$do_solaris_tar_check" = xyes -a x"$enable_solaris_tar_check" = xyes; then
 623         AC_MSG_CHECKING(integrity of package)
 624         if test -f $mcsdir/class/System.Runtime.Serialization.Formatters.Soap/System.Runtime.Serialization.Formatters.Soap/SoapTypeMapper.cs
 625         then
 626                 AC_MSG_RESULT(ok)
 627         else
 628                 errorm="Your mono distribution is incomplete;  if unpacking from a tar file, make sure you use GNU tar;  see http://www.mono-project.com/IncompletePackage for more details"
 629                 AC_MSG_ERROR([$errorm])
 630         fi
 631 fi
 632
 633 if test "x$with_mcs_path" != "x"; then
 634 mcs_topdir=$(cd "$mcsdir" && pwd)
 635 mcs_topdir_from_srcdir=$mcs_topdir
 636 else
 637 mcs_topdir=$(cd "$srcdir/$mcsdir" && pwd)
 638 mcs_topdir_from_srcdir='$(top_builddir)'/$mcsdir
 639 fi
 640
 641 # Convert mcs_topdir* paths to Windows syntax.
 642 if test x$cross_compiling$host_win32 = xnoyes; then
 643   mcs_topdir=$(cygpath -m $mcs_topdir)
 644   case $mcs_topdir_from_srcdir in
 645     /cygdrive/*)
 646         mcs_topdir_from_srcdir=$(cygpath -m $mcs_topdir_from_srcdir)
 647         ;;
 648   esac
 649 fi
 650
 651 AC_SUBST([mcs_topdir])
 652 AC_SUBST([mcs_topdir_from_srcdir])
 653
 654 # gettext: prepare the translation directories.
 655 # we do not configure the full gettext, as we consume it dynamically from C#
 656 AM_PO_SUBDIRS
 657
 658 if test "x$USE_NLS" = "xyes"; then
 659    AC_CHECK_PROG(HAVE_MSGFMT, msgfmt,yes,no)
 660
 661    if test "x$HAVE_MSGFMT" = "xno"; then
 662           AC_MSG_ERROR([msgfmt not found. You need to install the 'gettext' package, or pass --enable-nls=no to configure.])
 663    fi
 664 fi
 665
 666 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
 667
 668 pkg_config_path=
 669 AC_ARG_WITH(crosspkgdir, [  --with-crosspkgdir=/path/to/pkg-config/dir      Change pkg-config dir to custom dir],
 670         if test x$with_crosspkgdir = "x"; then
 671                 if test -s $PKG_CONFIG_PATH; then
 672                         pkg_config_path=$PKG_CONFIG_PATH
 673                 fi
 674         else
 675                 pkg_config_path=$with_crosspkgdir
 676                 PKG_CONFIG_PATH=$pkg_config_path
 677                 export PKG_CONFIG_PATH
 678         fi
 679 )
 680
 681 AC_ARG_ENABLE(werror, [  --enable-werror Pass -Werror to the C compiler], werror_flag=$enableval, werror_flag=no)
 682 if test x$werror_flag = xyes; then
 683         WERROR_CFLAGS="-Werror"
 684 fi
 685 AC_SUBST([WERROR_CFLAGS])
 686 AC_SUBST([SHARED_CFLAGS])
 687
 688 ac_configure_args="$ac_configure_args \"CPPFLAGS_FOR_EGLIB=$EGLIB_CPPFLAGS\" \"CFLAGS_FOR_EGLIB=$CFLAGS_FOR_EGLIB\""
 689 AC_CONFIG_SUBDIRS(eglib)
 690
 691 GLIB_CFLAGS='-I$(top_srcdir)/eglib/src -I$(top_builddir)/eglib/src'
 692 GLIB_LIBS='-L$(top_builddir)/eglib/src -leglib -lm'
 693
 694 AC_SUBST(GLIB_CFLAGS)
 695 AC_SUBST(GLIB_LIBS)
 696
 697 # Enable support for fast thread-local storage
 698 # Some systems have broken support, so we allow to disable it.
 699 AC_ARG_WITH(tls, [  --with-tls=__thread,pthread    select Thread Local Storage implementation (defaults to __thread)],[],[with_tls=__thread])
 700
 701 # Enable support for using sigaltstack for SIGSEGV and stack overflow handling
 702 # This does not work on some platforms (bug #55253)
 703 AC_ARG_WITH(sigaltstack, [  --with-sigaltstack=yes,no      enable/disable support for sigaltstack (defaults to yes)],[],[with_sigaltstack=yes])
 704
 705 AC_ARG_WITH(static_mono, [  --with-static_mono=yes,no      link mono statically to libmono (faster) (defaults to yes)],[],[with_static_mono=yes])
 706 AC_ARG_WITH(shared_mono, [  --with-shared_mono=yes,no      build a shared libmono library (defaults to yes)],[],[with_shared_mono=yes])
 707 # Same as --with-shared_mono=no
 708 AC_ARG_ENABLE(libraries, [  --disable-libraries disable the build of libmono], enable_libraries=$enableval, enable_libraries=yes)
 709
 710 if test "x$enable_static" = "xno"; then
 711    with_static_mono=no
 712 fi
 713
 714 if test "x$enable_shared" = "xno"; then
 715    with_shared_mono=no
 716 fi
 717
 718 if test "x$enable_libraries" = "xno"; then
 719    with_shared_mono=no
 720 fi
 721
 722 AM_CONDITIONAL(DISABLE_LIBRARIES, test x$enable_libraries = xno)
 723
 724 case $host in
 725 *nacl* ) with_shared_mono=yes;;
 726 esac
 727
 728 if test "x$host_win32" = "xyes"; then
 729    # Boehm GC requires the runtime to be in its own dll
 730    with_static_mono=no
 731 fi
 732
 733 AM_CONDITIONAL(STATIC_MONO, test x$with_static_mono != xno)
 734 AM_CONDITIONAL(SHARED_MONO, test x$with_shared_mono != xno)
 735 AC_ARG_ENABLE(mcs-build, [  --disable-mcs-build disable the build of the mcs directory], try_mcs_build=$enableval, enable_mcs_build=yes)
 736
 737 AC_ARG_WITH(xen_opt,   [  --with-xen_opt=yes,no          Enable Xen-specific behaviour (defaults to yes)],[],[with_xen_opt=yes])
 738 if test "x$with_xen_opt" = "xyes" -a "x$mono_cv_clang" = "xno"; then
 739         AC_DEFINE(MONO_XEN_OPT, 1, [Xen-specific behaviour])
 740         ORIG_CFLAGS=$CFLAGS
 741         CFLAGS="$CFLAGS -mno-tls-direct-seg-refs"
 742         AC_MSG_CHECKING(for -mno-tls-direct-seg-refs option to gcc)
 743         AC_TRY_COMPILE([], [
 744                 return 0;
 745         ], [
 746            AC_MSG_RESULT(yes)
 747            # Pass it to libgc as well
 748            CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -mno-tls-direct-seg-refs"
 749         ], [
 750            AC_MSG_RESULT(no)
 751            CFLAGS=$ORIG_CFLAGS
 752         ])
 753 fi
 754
 755 AC_ARG_ENABLE(small-config, [  --enable-small-config Enable tweaks to reduce requirements (and capabilities)], enable_small_config=$enableval, enable_small_config=no)
 756
 757 if test x$enable_small_config = xyes; then
 758         AC_DEFINE(MONO_SMALL_CONFIG,1,[Reduce runtime requirements (and capabilities)])
 759         CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DSMALL_CONFIG"
 760 fi
 761
 762 AC_ARG_ENABLE(system-aot, [  --enable-system-aot  Enable the Ahead-Of-Time compilation of system assemblies during the build (on by default on some platforms)], enable_system_aot=$enableval, enable_system_aot=default)
 763
 764 DISABLED_FEATURES=none
 765 csc_compiler=default
 766 endian=unknown
 767 AC_C_BIGENDIAN([endian=big],[endian=little],[endian=unknown])
 768 AC_MSG_CHECKING([CSharp compiler to use])
 769 AC_ARG_WITH(csc, [  --with-csc=mcs,roslyn,default      Configures the CSharp compiler to use],[
 770    if test x$withval = xmcs; then
 771        csc_compiler=mcs
 772    elif test x$withval = xroslyn; then
 773        csc_compiler=roslyn
 774    elif test x$withval = xdefault; then
 775        :
 776    else
 777        AC_MSG_ERROR([You must supply one of "mcs", "roslyn" or "default" to the --with-csc option])
 778    fi
 779 ],[csc_compiler=default])
 780
 781 if test $csc_compiler = default; then
 782    if test $endian = big; then
 783       csc_compiler=mcs
 784    elif test $endian = little; then
 785       csc_compiler=roslyn
 786    else
 787       csc_compiler=mcs
 788    fi
 789 fi
 790 AC_MSG_RESULT($csc_compiler)
 791
 792 #
 793 # Set the build profiles and options before things which use them
 794 #
 795
 796 AC_ARG_WITH(profile4_x,          [  --with-profile4_x=yes,no            If you want to install the 4.x FX (defaults to yes)],                       [], [with_profile4_x=default])
 797 AC_ARG_WITH(monodroid,           [  --with-monodroid=yes,no             If you want to build the MonoDroid assemblies (defaults to no)],            [], [with_monodroid=default])
 798 AC_ARG_WITH(monotouch,           [  --with-monotouch=yes,no             If you want to build the Xamarin.iOS assemblies (defaults to no)],          [], [with_monotouch=default])
 799 AC_ARG_WITH(monotouch_watch,     [  --with-monotouch_watch=yes,no       If you want to build the Xamarin.WatchOS assemblies (defaults to no)],      [], [with_monotouch_watch=default])
 800 AC_ARG_WITH(monotouch_tv,        [  --with-monotouch_tv=yes,no          If you want to build the Xamarin.TVOS assemblies (defaults to no)],         [], [with_monotouch_tv=default])
 801 AC_ARG_WITH(bitcode,             [  --with-bitcode=yes,no               If bitcode is enabled (defaults to no)],                                    [], [with_bitcode=default])
 802 AC_ARG_WITH(xammac,              [  --with-xammac=yes,no                If you want to build the Xamarin.Mac assemblies (defaults to no)],          [], [with_xammac=default])
 803 AC_ARG_WITH(testing_aot_hybrid,  [  --with-testing_aot_hybrid=yes,no    If you want to build the testing_aot_hybrid assemblies (defaults to no)],   [], [with_testing_aot_hybrid=default])
 804 AC_ARG_WITH(testing_aot_full,    [  --with-testing_aot_full=yes,no      If you want to build the testing_aot_full assemblies (defaults to no)],     [], [with_testing_aot_full=default])
 805 AC_ARG_WITH(winaot,              [  --with-winaot=yes,no                If you want to build the Windows friendly AOT assemblies (defaults to no)], [], [with_winaot=default])
 806
 807 AC_ARG_WITH(runtime_preset, [  --with-runtime_preset=net_4_x,all,aot,hybridaot,fullaot,bitcode   Which default profile to build (defaults to net_4_x)],  [], [with_runtime_preset=net_4_x])
 808
 809 dnl
 810 dnl Profile defaults
 811 dnl
 812 TEST_PROFILE=default
 813 enable_llvm_default=no
 814
 815 with_profile4_x_default=no
 816 with_monodroid_default=no
 817 with_monotouch_default=no
 818 with_monotouch_watch_default=no
 819 with_monotouch_tv_default=no
 820 with_xammac_default=no
 821 with_testing_aot_hybrid_default=no
 822 with_testing_aot_full_default=no
 823 with_winaot_default=no
 824
 825 with_bitcode_default=no
 826 with_cooperative_gc_default=no
 827
 828 INVARIANT_AOT_OPTIONS=nimt-trampolines=2000,ntrampolines=8000,nrgctx-fetch-trampolines=256,ngsharedvt-trampolines=4000
 829
 830 if test x$cross_compiling = xyes -o x$enable_mcs_build = xno; then
 831    DISABLE_MCS_DOCS_default=yes
 832 elif test x$with_runtime_preset = xnet_4_x; then
 833    with_profile4_x_default=yes
 834 elif test x$with_runtime_preset = xall; then
 835    with_profile4_x_default=yes
 836    with_monodroid_default=yes
 837    with_monotouch_default=yes
 838    with_monotouch_watch_default=yes
 839    with_monotouch_tv_default=yes
 840    with_xammac_default=yes
 841    with_winaot_default=yes
 842 elif test x$with_runtime_preset = xfullaot; then
 843    DISABLE_MCS_DOCS_default=yes
 844    with_testing_aot_full_default=yes
 845    TEST_PROFILE=testing_aot_full
 846
 847    mono_feature_disable_com='yes'
 848    mono_feature_disable_remoting='yes'
 849    mono_feature_disable_reflection_emit_save='yes'
 850    mono_feature_disable_reflection_emit='yes'
 851    mono_feature_disable_appdomains='yes'
 852
 853    AOT_BUILD_FLAGS="-O=gsharedvt --aot=full,$INVARIANT_AOT_OPTIONS"
 854    AOT_RUN_FLAGS="--full-aot"
 855 elif test x$with_runtime_preset = xbitcode; then
 856    DISABLE_MCS_DOCS_default=yes
 857    with_testing_aot_full_default=yes
 858    with_bitcode_default=yes
 859    with_cooperative_gc_default=yes
 860    TEST_PROFILE=testing_aot_full
 861    enable_llvm_default=yes
 862
 863    mono_feature_disable_com='yes'
 864    mono_feature_disable_remoting='yes'
 865    mono_feature_disable_reflection_emit_save='yes'
 866    mono_feature_disable_reflection_emit='yes'
 867    mono_feature_disable_appdomains='yes'
 868
 869    AOT_BUILD_FLAGS="--aot=llvmonly,$INVARIANT_AOT_OPTIONS"
 870    AOT_RUN_FLAGS="--llvmonly"
 871 elif test x$with_runtime_preset = xhybridaot; then
 872    DISABLE_MCS_DOCS_default=yes
 873    with_testing_aot_hybrid_default=yes
 874    TEST_PROFILE=testing_aot_hybrid
 875
 876    mono_feature_disable_com='yes'
 877    mono_feature_disable_remoting='yes'
 878    mono_feature_disable_appdomains='yes'
 879
 880    AOT_BUILD_FLAGS="--aot=hybrid,$INVARIANT_AOT_OPTIONS"
 881    AOT_RUN_FLAGS="--hybrid-aot"
 882 elif test x$with_runtime_preset = xaot; then
 883    with_profile4_x_default=yes
 884
 885    AOT_BUILD_FLAGS="--aot=$INVARIANT_AOT_OPTIONS"
 886    AOT_RUN_FLAGS=""
 887
 888    DISABLE_MCS_DOCS_default=yes
 889 else
 890    with_profile4_x_default=yes
 891 fi
 892
 893 if test "x$AOT_BUILD_FLAGS" != "x"; then :
 894    AC_SUBST(AOT_BUILD_FLAGS)
 895    AC_SUBST(AOT_RUN_FLAGS)
 896    # For llvmonlycheck + fullaotcheck
 897    AC_SUBST(INVARIANT_AOT_OPTIONS)
 898 fi
 899
 900 AC_SUBST(TEST_PROFILE)
 901
 902 if test "x$with_profile4_x" = "xdefault"; then
 903    with_profile4_x=$with_profile4_x_default
 904 fi
 905 if test "x$with_monodroid" = "xdefault"; then
 906    with_monodroid=$with_monodroid_default
 907 fi
 908 if test "x$with_monotouch" = "xdefault"; then
 909    with_monotouch=$with_monotouch_default
 910 fi
 911 if test "x$with_monotouch_watch" = "xdefault"; then
 912    with_monotouch_watch=$with_monotouch_watch_default
 913 fi
 914 if test "x$with_monotouch_tv" = "xdefault"; then
 915    with_monotouch_tv=$with_monotouch_tv_default
 916 fi
 917 if test "x$with_bitcode" = "xdefault"; then
 918    with_bitcode=$with_bitcode_default
 919 fi
 920 if test "x$with_xammac" = "xdefault"; then
 921    with_xammac=$with_xammac_default
 922 fi
 923 if test "x$with_testing_aot_hybrid" = "xdefault"; then
 924    with_testing_aot_hybrid=$with_testing_aot_hybrid_default
 925 fi
 926 if test "x$with_testing_aot_full" = "xdefault"; then
 927    with_testing_aot_full=$with_testing_aot_full_default
 928 fi
 929 if test "x$with_winaot" = "xdefault"; then
 930    with_winaot=$with_winaot_default
 931 fi
 932
 933
 934 AM_CONDITIONAL(INSTALL_4_x, [test "x$with_profile4_x" = "xyes"])
 935 AM_CONDITIONAL(INSTALL_MONODROID, [test "x$with_monodroid" != "xno"])
 936 AM_CONDITIONAL(INSTALL_MONOTOUCH, [test "x$with_monotouch" != "xno"])
 937 AM_CONDITIONAL(INSTALL_MONOTOUCH_WATCH, [test "x$with_monotouch_watch" != "xno"])
 938 AM_CONDITIONAL(INSTALL_MONOTOUCH_TV, [test "x$with_monotouch_tv" != "xno"])
 939 AM_CONDITIONAL(BITCODE, test "x$with_bitcode" = "xyes")
 940 AM_CONDITIONAL(INSTALL_XAMMAC, [test "x$with_xammac" != "xno"])
 941 AM_CONDITIONAL(INSTALL_TESTING_AOT_HYBRID, [test "x$with_testing_aot_hybrid" != "xno"])
 942 AM_CONDITIONAL(INSTALL_TESTING_AOT_FULL, [test "x$with_testing_aot_full" != "xno"])
 943 AM_CONDITIONAL(INSTALL_WINAOT, [test "x$with_winaot" != "xno"])
 944
 945 AC_SUBST(INSTALL_TESTING_AOT_HYBRID)
 946 AC_SUBST(INSTALL_TESTING_AOT_FULL)
 947
 948 default_profile=net_4_x
 949 if test -z "$INSTALL_MONODROID_TRUE"; then :
 950    default_profile=monodroid
 951 fi
 952 if test -z "$INSTALL_MONOTOUCH_TRUE"; then :
 953    default_profile=monotouch
 954 fi
 955 if test -z "$INSTALL_XAMMAC_TRUE"; then :
 956    default_profile=xammac
 957 fi
 958 if test -z "$INSTALL_TESTING_AOT_HYBRID_TRUE"; then :
 959    default_profile=testing_aot_hybrid
 960 fi
 961 if test -z "$INSTALL_TESTING_AOT_FULL_TRUE"; then :
 962    default_profile=testing_aot_full
 963 fi
 964 if test -z "$INSTALL_4_x_TRUE"; then :
 965    default_profile=net_4_x
 966 fi
 967 DEFAULT_PROFILE=$default_profile
 968 AC_SUBST(DEFAULT_PROFILE)
 969
 970 #
 971 # End build profile configuration
 972 #
 973
 974 if test x$USE_NLS = xprofile_default; then
 975
 976 if test x$host_darwin = xyes; then
 977 # We make the default value for USE_NLS
 978 # "no" on OSX because it isn't available on most
 979 # default OSX installs. The most common configurations will
 980 # all disable it, so this saves us typing.
 981   USE_NLS=no
 982   AC_SUBST([USE_NLS])
 983   AC_MSG_RESULT([$USE_NLS])
 984 else
 985   USE_NLS=yes
 986   AC_SUBST([USE_NLS])
 987   AC_MSG_RESULT([$USE_NLS])
 988 fi
 989
 990 fi
 991
 992 AC_ARG_ENABLE(minimal, [  --enable-minimal=LIST      drop support for LIST subsystems.
 993      LIST is a comma-separated list from: aot, profiler, decimal, pinvoke, debug, appdomains, verifier,
 994      reflection_emit, reflection_emit_save, large_code, logging, com, ssa, generics, attach, jit, simd, soft_debug, perfcounters, normalization, assembly_remapping, shared_perfcounters, remoting,
 995          security, lldb, sgen_remset, sgen_marksweep_par, sgen_marksweep_fixed, sgen_marksweep_fixed_par, sgen_copying.],
 996 [
 997         for feature in `echo "$enable_minimal" | sed -e "s/,/ /g"`; do
 998                 eval "mono_feature_disable_$feature='yes'"
 999         done
1000         DISABLED_FEATURES=$enable_minimal
1001         disabled="Disabled:      $enable_minimal"
1002 ],[])
1003
1004 AC_DEFINE_UNQUOTED(DISABLED_FEATURES, "$DISABLED_FEATURES", [String of disabled features])
1005
1006 if test "x$mono_feature_disable_aot" = "xyes"; then
1007         AC_DEFINE(DISABLE_AOT, 1, [Disable AOT Compiler])
1008         enable_system_aot=no
1009         AC_MSG_NOTICE([Disabled AOT compiler])
1010 fi
1011
1012 if test "x$mono_feature_disable_profiler" = "xyes"; then
1013         AC_DEFINE(DISABLE_PROFILER, 1, [Disable default profiler support])
1014         AC_MSG_NOTICE([Disabled support for the profiler])
1015 fi
1016 AM_CONDITIONAL(DISABLE_PROFILER, test x$mono_feature_disable_profiler = xyes)
1017
1018 if test "x$mono_feature_disable_decimal" = "xyes"; then
1019         AC_DEFINE(DISABLE_DECIMAL, 1, [Disable System.Decimal support])
1020         AC_MSG_NOTICE([Disabled support for decimal])
1021 fi
1022
1023 if test "x$mono_feature_disable_pinvoke" = "xyes"; then
1024         AC_DEFINE(DISABLE_PINVOKE, 1, [Disable P/Invoke support])
1025         AC_MSG_NOTICE([Disabled support for P/Invoke])
1026 fi
1027
1028 if test "x$mono_feature_disable_debug" = "xyes"; then
1029         AC_DEFINE(DISABLE_DEBUG, 1, [Disable runtime debugging support])
1030         AC_MSG_NOTICE([Disabled support for runtime debugging])
1031 fi
1032
1033 if test "x$mono_feature_disable_reflection_emit" = "xyes"; then
1034         AC_DEFINE(DISABLE_REFLECTION_EMIT, 1, [Disable reflection emit support])
1035         mono_feature_disable_reflection_emit_save=yes
1036         AC_MSG_NOTICE([Disabled support for Reflection.Emit])
1037 fi
1038
1039 if test "x$mono_feature_disable_reflection_emit_save" = "xyes"; then
1040         AC_DEFINE(DISABLE_REFLECTION_EMIT_SAVE, 1, [Disable assembly saving support in reflection emit])
1041         AC_MSG_NOTICE([Disabled support for Reflection.Emit.Save])
1042 fi
1043
1044 if test "x$mono_feature_disable_large_code" = "xyes"; then
1045         AC_DEFINE(DISABLE_LARGE_CODE, 1, [Disable support for huge assemblies])
1046         AC_MSG_NOTICE([Disabled support for large assemblies])
1047 fi
1048
1049 if test "x$mono_feature_disable_logging" = "xyes"; then
1050         AC_DEFINE(DISABLE_LOGGING, 1, [Disable support debug logging])
1051         AC_MSG_NOTICE([Disabled support for logging])
1052 fi
1053
1054 if test "x$mono_feature_disable_com" = "xyes"; then
1055         AC_DEFINE(DISABLE_COM, 1, [Disable COM support])
1056         AC_MSG_NOTICE([Disabled COM support])
1057 fi
1058
1059 if test "x$mono_feature_disable_ssa" = "xyes"; then
1060         AC_DEFINE(DISABLE_SSA, 1, [Disable advanced SSA JIT optimizations])
1061         AC_MSG_NOTICE([Disabled SSA JIT optimizations])
1062 fi
1063
1064 if test "x$mono_feature_disable_generics" = "xyes"; then
1065         AC_DEFINE(DISABLE_GENERICS, 1, [Disable generics support])
1066         AC_MSG_NOTICE([Disabled Generics Support])
1067 fi
1068
1069 if test "x$mono_feature_disable_shadowcopy" = "xyes"; then
1070         AC_DEFINE(DISABLE_SHADOW_COPY, 1, [Disable Shadow Copy for AppDomains])
1071         AC_MSG_NOTICE([Disabled Shadow copy for AppDomains])
1072 fi
1073
1074 if test "x$mono_feature_disable_portability" = "xyes"; then
1075         AC_DEFINE(DISABLE_PORTABILITY, 1, [Disables the IO portability layer])
1076         AC_MSG_NOTICE([Disabled IO Portability layer])
1077 fi
1078
1079 if test "x$mono_feature_disable_attach" = "xyes"; then
1080         AC_DEFINE(DISABLE_ATTACH, 1, [Disable agent attach support])
1081         AC_MSG_NOTICE([Disabled agent attach])
1082 fi
1083
1084 if test "x$mono_feature_disable_verifier" = "xyes"; then
1085         AC_DEFINE(DISABLE_VERIFIER, 1, [Disables the verifier])
1086         AC_MSG_NOTICE([Disabled the metadata and IL verifiers])
1087 fi
1088
1089 if test "x$mono_feature_disable_jit" = "xyes"; then
1090         AC_DEFINE(DISABLE_JIT, 1, [Disable the JIT, only full-aot mode will be supported by the runtime.])
1091         AC_MSG_NOTICE([Disabled the JIT engine, only full AOT will be supported])
1092 fi
1093
1094 AM_CONDITIONAL(DISABLE_JIT, test x$mono_feature_disable_jit = xyes)
1095
1096 if test "x$mono_feature_disable_simd" = "xyes"; then
1097         AC_DEFINE(DISABLE_SIMD, 1, [Disable SIMD intrinsics related optimizations.])
1098         AC_MSG_NOTICE([Disabled SIMD support])
1099 fi
1100
1101 if test "x$mono_feature_disable_soft_debug" = "xyes"; then
1102         AC_DEFINE(DISABLE_SOFT_DEBUG, 1, [Disable Soft Debugger Agent.])
1103         AC_MSG_NOTICE([Disabled Soft Debugger.])
1104 fi
1105
1106 if test "x$mono_feature_disable_perfcounters" = "xyes"; then
1107         AC_DEFINE(DISABLE_PERFCOUNTERS, 1, [Disable Performance Counters.])
1108         AC_MSG_NOTICE([Disabled Performance Counters.])
1109 fi
1110 if test "x$mono_feature_disable_normalization" = "xyes"; then
1111         AC_DEFINE(DISABLE_NORMALIZATION, 1, [Disable String normalization support.])
1112         AC_MSG_NOTICE([Disabled String normalization support.])
1113 fi
1114
1115 if test "x$mono_feature_disable_assembly_remapping" = "xyes"; then
1116         AC_DEFINE(DISABLE_ASSEMBLY_REMAPPING, 1, [Disable assembly remapping.])
1117         AC_MSG_NOTICE([Disabled Assembly remapping.])
1118 fi
1119
1120 if test "x$mono_feature_disable_shared_perfcounters" = "xyes"; then
1121         AC_DEFINE(DISABLE_SHARED_PERFCOUNTERS, 1, [Disable shared perfcounters.])
1122         AC_MSG_NOTICE([Disabled Shared perfcounters.])
1123 fi
1124
1125 if test "x$mono_feature_disable_appdomains" = "xyes"; then
1126         AC_DEFINE(DISABLE_APPDOMAINS, 1, [Disable support for multiple appdomains.])
1127         AC_MSG_NOTICE([Disabled support for multiple appdomains.])
1128 fi
1129
1130 if test "x$mono_feature_disable_remoting" = "xyes"; then
1131         AC_DEFINE(DISABLE_REMOTING, 1, [Disable remoting support (This disables type proxies and make com non-functional)])
1132         AC_MSG_NOTICE([Disabled remoting])
1133 fi
1134
1135 if test "x$mono_feature_disable_security" = "xyes"; then
1136         AC_DEFINE(DISABLE_SECURITY, 1, [Disable CAS/CoreCLR security])
1137         AC_MSG_NOTICE([Disabled CAS/CoreCLR security manager (used e.g. for Moonlight)])
1138 fi
1139
1140 if test "x$mono_feature_disable_lldb" = "xyes"; then
1141         AC_DEFINE(DISABLE_LLDB, 1, [Disable support code for the LLDB plugin.])
1142         AC_MSG_NOTICE([Disabled LLDB plugin support code.])
1143 fi
1144
1145 if test "x$mono_feature_disable_sgen_remset" = "xyes"; then
1146         AC_DEFINE(DISABLE_SGEN_REMSET, 1, [Disable wbarrier=remset support in SGEN.])
1147         AC_MSG_NOTICE([Disabled wbarrier=remset support in SGEN.])
1148 fi
1149
1150 if test "x$mono_feature_disable_sgen_marksweep_par" = "xyes"; then
1151         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_PAR, 1, [Disable major=marksweep-par support in SGEN.])
1152         AC_MSG_NOTICE([Disabled major=marksweep-par support in SGEN.])
1153 fi
1154
1155 if test "x$mono_feature_disable_sgen_marksweep_fixed" = "xyes"; then
1156         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_FIXED, 1, [Disable major=marksweep-fixed support in SGEN.])
1157         AC_MSG_NOTICE([Disabled major=marksweep-fixed support in SGEN.])
1158 fi
1159
1160 if test "x$mono_feature_disable_sgen_marksweep_fixed_par" = "xyes"; then
1161         AC_DEFINE(DISABLE_SGEN_MAJOR_MARKSWEEP_FIXED_PAR, 1, [Disable major=marksweep-fixed-par support in SGEN.])
1162         AC_MSG_NOTICE([Disabled major=marksweep-fixed-par support in SGEN.])
1163 fi
1164
1165 if test "x$mono_feature_disable_sgen_copying" = "xyes"; then
1166         AC_DEFINE(DISABLE_SGEN_MAJOR_COPYING, 1, [Disable major=copying support in SGEN.])
1167         AC_MSG_NOTICE([Disabled major=copying support in SGEN.])
1168 fi
1169
1170 AC_ARG_ENABLE(executables, [  --disable-executables disable the build of the runtime executables], enable_executables=$enableval, enable_executables=yes)
1171 AM_CONDITIONAL(DISABLE_EXECUTABLES, test x$enable_executables = xno)
1172
1173 has_extension_module=no
1174 AC_ARG_ENABLE(extension-module, [  --enable-extension-module=LIST enable the core-extensions from LIST],
1175 [
1176         for extension in `echo "$enable_extension_module" | sed -e "s/,/ /g"`; do
1177                 if test x$extension = xdefault ; then
1178                         has_extension_module=yes;
1179                 fi
1180         done
1181         if test x$enable_extension_module = xyes; then
1182                 has_extension_module=yes;
1183         fi
1184 ], [])
1185
1186 AM_CONDITIONAL([HAS_EXTENSION_MODULE], [test x$has_extension_module != xno])
1187
1188 if test x$has_extension_module != xno ; then
1189         AC_DEFINE([ENABLE_EXTENSION_MODULE], 1, [Extension module enabled])
1190         AC_MSG_NOTICE([Enabling mono extension module.])
1191 fi
1192
1193 # Deprecated
1194 AC_ARG_ENABLE(gsharedvt, [  --enable-gsharedvt Enable generic valuetype sharing (Deprecated)], enable_gsharedvt=$enableval, enable_gsharedvt=no)
1195
1196 AC_MSG_CHECKING(for visibility __attribute__)
1197 AC_COMPILE_IFELSE([
1198         AC_LANG_SOURCE([[
1199                 void __attribute__ ((visibility ("hidden"))) doit (void) {}
1200                 int main () { doit (); return 0; }
1201         ]])
1202 ], [
1203    have_visibility_hidden=yes
1204    AC_MSG_RESULT(yes)
1205 ], [
1206    have_visibility_hidden=no
1207    AC_MSG_RESULT(no)
1208 ])
1209
1210 dnl
1211 dnl Boehm GC configuration
1212 dnl
1213
1214 AC_ARG_WITH(libgc,   [  --with-gc=included,none  Controls the Boehm GC config, default=included],[libgc=$with_gc],[libgc=included])
1215
1216 AC_ARG_ENABLE(boehm, [  --disable-boehm            Disable the Boehm GC.], support_boehm=$enableval,support_boehm=${support_boehm:-yes})
1217 AM_CONDITIONAL(SUPPORT_BOEHM, test x$support_boehm = xyes)
1218
1219 if test "x$support_boehm" = "xyes"; then
1220
1221         AC_ARG_ENABLE(parallel-mark, [  --enable-parallel-mark     Enables Boehm GC Parallel Marking], enable_parallel_mark=$enableval, enable_parallel_mark=$parallel_mark)
1222         if test x$enable_parallel_mark = xyes; then
1223                 libgc_configure_args="$libgc_configure_args --enable-parallel-mark"
1224         fi
1225
1226         gc_msg=""
1227         LIBGC_CPPFLAGS=
1228         LIBGC_LIBS=
1229         LIBGC_STATIC_LIBS=
1230         libgc_dir=
1231         case "x$libgc" in
1232                 xincluded)
1233                         if test "x$support_boehm" = "xyes"; then
1234                                 libgc_dir=libgc
1235                         fi
1236
1237                         LIBGC_CPPFLAGS='-I$(top_srcdir)/libgc/include'
1238                         LIBGC_LIBS='$(top_builddir)/libgc/libmonogc.la'
1239                         LIBGC_STATIC_LIBS='$(top_builddir)/libgc/libmonogc-static.la'
1240
1241                         BOEHM_DEFINES="-DHAVE_BOEHM_GC"
1242
1243                         if test x$target_win32 = xyes; then
1244                                 BOEHM_DEFINES="$BOEHM_DEFINES -DGC_NOT_DLL"
1245                                 CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DGC_BUILD -DGC_NOT_DLL"
1246                         fi
1247
1248                         gc_msg="Included Boehm GC with typed GC"
1249                         if test x$enable_parallel_mark = xyes; then
1250                                 AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC and Parallel Mark)", [GC description])
1251                                 gc_msg="$gc_msg and parallel mark"
1252                         else
1253                                 AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "Included Boehm (with typed GC)", [GC description])
1254                         fi
1255                         ;;
1256
1257                 xboehm|xbohem|xyes)
1258                         AC_MSG_WARN("External Boehm is no longer supported")
1259                         ;;
1260
1261                 xsgen)
1262                         AC_MSG_WARN("Use --with-sgen instead, --with-gc= controls Boehm configuration")
1263                         ;;
1264
1265                 xnone)
1266                         AC_MSG_WARN("Compiling mono without GC.")
1267                         AC_DEFINE_UNQUOTED(DEFAULT_GC_NAME, "none", [GC description])
1268                         AC_DEFINE(HAVE_NULL_GC,1,[No GC support.])
1269                         gc_msg="none"
1270                         ;;
1271                 *)
1272                         AC_MSG_ERROR([Invalid argument to --with-gc.])
1273                         ;;
1274         esac
1275
1276         AC_ARG_WITH(large-heap, [  --with-large-heap=yes,no       Enable support for GC heaps larger than 3GB (defaults to no)], [large_heap=$withval], [large_heap=no])
1277         if test "x$large_heap" = "xyes"; then
1278            CPPFLAGS="$CPPFLAGS -DLARGE_CONFIG"
1279         fi
1280
1281         AC_SUBST(LIBGC_CPPFLAGS)
1282         AC_SUBST(LIBGC_LIBS)
1283         AC_SUBST(LIBGC_STATIC_LIBS)
1284         AC_SUBST(libgc_dir)
1285         AC_SUBST(BOEHM_DEFINES)
1286
1287 fi
1288
1289 dnl
1290 dnl End of Boehm GC Configuration
1291 dnl
1292
1293 dnl *************************************
1294 dnl *** Checks for zero length arrays ***
1295 dnl *************************************
1296 AC_MSG_CHECKING(whether $CC supports zero length arrays)
1297 AC_TRY_COMPILE([
1298         struct s {
1299                 int  length;
1300                 char data [0];
1301         };
1302 ], [], [
1303         AC_MSG_RESULT(yes)
1304         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 0, [Length of zero length arrays])
1305 ], [
1306         AC_MSG_RESULT(no)
1307         AC_DEFINE_UNQUOTED(MONO_ZERO_LEN_ARRAY, 1, [Length of zero length arrays])
1308 ])
1309
1310 AC_CHECK_HEADERS(nacl/nacl_dyncode.h)
1311
1312 dnl ***********************************
1313 dnl *** Checks for signals
1314 dnl ***********************************
1315 AC_CHECK_HEADERS(signal.h)
1316 AC_CHECK_FUNCS(sigaction)
1317 AC_CHECK_FUNCS(kill)
1318 AC_CHECK_FUNCS(signal)
1319
1320 # signal() is declared inline in Android headers
1321 # so we need to workaround it by overriding the check.
1322 if test x$platform_android = xyes; then
1323         AC_DEFINE(HAVE_SIGNAL,1)
1324 fi
1325
1326 if test x$host_win32 = xno; then
1327
1328         dnl hires monotonic clock support
1329         AC_SEARCH_LIBS(clock_gettime, rt)
1330         AC_CHECK_FUNCS(clock_nanosleep)
1331
1332         dnl dynamic loader support
1333         AC_CHECK_FUNC(dlopen, DL_LIB="",
1334                 AC_CHECK_LIB(dl, dlopen, DL_LIB="-ldl", dl_support=no)
1335         )
1336         if test x$dl_support = xno; then
1337                 AC_MSG_WARN([No dynamic loading support available])
1338         else
1339                 LIBS="$LIBS $DL_LIB"
1340                 AC_DEFINE(HAVE_DL_LOADER,1,[dlopen-based dynamic loader available])
1341                 dnl from glib's configure.ac
1342                 AC_CACHE_CHECK([for preceeding underscore in symbols],
1343                         mono_cv_uscore,[
1344                         AC_TRY_RUN([#include <dlfcn.h>
1345                         int mono_underscore_test (void) { return 42; }
1346                         int main() {
1347                           void *f1 = (void*)0, *f2 = (void*)0, *handle;
1348                           handle = dlopen ((void*)0, 0);
1349                           if (handle) {
1350                             f1 = dlsym (handle, "mono_underscore_test");
1351                             f2 = dlsym (handle, "_mono_underscore_test");
1352                           } return (!f2 || f1);
1353                         }],
1354                                 [mono_cv_uscore=yes],
1355                                 [mono_cv_uscore=no],
1356                         [])
1357                 ])
1358                 if test "x$mono_cv_uscore" = "xyes"; then
1359                         MONO_DL_NEED_USCORE=1
1360                 else
1361                         MONO_DL_NEED_USCORE=0
1362                 fi
1363                 AC_SUBST(MONO_DL_NEED_USCORE)
1364                 AC_CHECK_FUNC(dlerror)
1365         fi
1366
1367         dnl ******************************************************************
1368         dnl *** Checks for the IKVM JNI interface library                  ***
1369         dnl ******************************************************************
1370         AC_ARG_WITH(ikvm-native, [  --with-ikvm-native=yes,no      build the IKVM JNI interface library (defaults to yes)],[with_ikvm_native=$withval],[with_ikvm_native=$ikvm_native])
1371
1372         ikvm_native_dir=
1373         if test x$with_ikvm_native = xyes; then
1374                 ikvm_native_dir=ikvm-native
1375                 jdk_headers_found="IKVM Native"
1376         fi
1377
1378         AC_SUBST(ikvm_native_dir)
1379
1380         AC_CHECK_HEADERS(execinfo.h)
1381
1382         AC_CHECK_HEADERS(sys/auxv.h sys/resource.h)
1383
1384         AC_CHECK_FUNCS(getgrgid_r)
1385         AC_CHECK_FUNCS(getgrnam_r)
1386         AC_CHECK_FUNCS(getpwnam_r)
1387         AC_CHECK_FUNCS(getpwuid_r)
1388         AC_CHECK_FUNCS(getresuid)
1389         AC_CHECK_FUNCS(setresuid)
1390         AC_CHECK_FUNCS(kqueue)
1391         AC_CHECK_FUNCS(backtrace_symbols)
1392         AC_CHECK_FUNCS(mkstemp)
1393         AC_CHECK_FUNCS(mmap)
1394         AC_CHECK_FUNCS(madvise)
1395         AC_CHECK_FUNCS(getrusage)
1396         AC_CHECK_FUNCS(getpriority)
1397         AC_CHECK_FUNCS(setpriority)
1398         AC_CHECK_FUNCS(dl_iterate_phdr)
1399         AC_CHECK_FUNCS(dladdr)
1400         AC_CHECK_FUNCS(sysconf)
1401         AC_CHECK_FUNCS(getrlimit)
1402         AC_CHECK_FUNCS(prctl)
1403
1404         AC_CHECK_FUNCS(sched_getaffinity)
1405         AC_CHECK_FUNCS(sched_setaffinity)
1406         AC_CHECK_FUNCS(sched_getcpu)
1407
1408         dnl ****************************************************************
1409         dnl *** Check for sched_setaffinity from glibc versions before   ***
1410         dnl *** 2.3.4. The older versions of the function only take 2    ***
1411         dnl *** parameters, not 3.                                       ***
1412         dnl ***                                                          ***
1413         dnl *** Because the interface change was not made in a minor     ***
1414         dnl *** version rev, the __GLIBC__ and __GLIBC_MINOR__ macros    ***
1415         dnl *** won't always indicate the interface sched_affinity has.  ***
1416         dnl ****************************************************************
1417         AC_MSG_CHECKING(for sched_setaffinity from glibc < 2.3.4)
1418         AC_TRY_COMPILE([#include <sched.h>], [
1419             int mask = 1;
1420             sched_setaffinity(0, &mask);
1421                         return 0;
1422         ], [
1423                 # Yes, we have it...
1424                 AC_MSG_RESULT(yes)
1425                 AC_DEFINE(GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY, 1, [Have GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY])
1426         ], [
1427                 # We have the new, three-parameter version
1428                 AC_MSG_RESULT(no)
1429         ])
1430         AC_TRY_COMPILE([#include <sched.h>], [
1431              CPU_COUNT((void *) 0);
1432         ], [
1433                 AC_MSG_RESULT(yes)
1434                 AC_DEFINE(GLIBC_HAS_CPU_COUNT, 1, [GLIBC has CPU_COUNT macro in sched.h])
1435         ], [
1436                 # We have the new, three-parameter version
1437                 AC_MSG_RESULT(no)
1438         ])
1439
1440         dnl ******************************************************************
1441         dnl *** Check for large file support                               ***
1442         dnl *** (If we were using autoconf 2.50 we'd use AC_SYS_LARGEFILE) ***
1443         dnl ******************************************************************
1444
1445         # Check that off_t can represent 2**63 - 1 correctly, working around
1446         # potential compiler bugs.  Defines LARGE_FILE_SUPPORT, adds $1 to
1447         # CPPFLAGS and sets $large_offt to yes if the test succeeds
1448         large_offt=no
1449         AC_DEFUN([LARGE_FILES], [
1450                 large_CPPFLAGS=$CPPFLAGS
1451                 CPPFLAGS="$CPPFLAGS $1"
1452                 AC_TRY_COMPILE([
1453                         #include <sys/types.h>
1454                         #include <limits.h>
1455                 ], [
1456                         /* Lifted this compile time assert method from: http://www.jaggersoft.com/pubs/CVu11_3.html */
1457                         #define COMPILE_TIME_ASSERT(pred) \
1458                                 switch(0){case 0:case pred:;}
1459                         COMPILE_TIME_ASSERT(sizeof(off_t) * CHAR_BIT == 64);
1460                 ], [
1461                         AC_MSG_RESULT(ok)
1462                         AC_DEFINE(HAVE_LARGE_FILE_SUPPORT, 1, [Have large file support])
1463                         large_CPPFLAGS="$large_CPPFLAGS $1"
1464                         large_offt=yes
1465                 ], [
1466                         AC_MSG_RESULT(no)
1467                 ])
1468                 CPPFLAGS=$large_CPPFLAGS
1469         ])
1470
1471         AC_MSG_CHECKING(if off_t is 64 bits wide)
1472         LARGE_FILES("")
1473         if test $large_offt = no; then
1474                 AC_MSG_CHECKING(if _FILE_OFFSET_BITS=64 gives 64 bit off_t)
1475                 LARGE_FILES("-D_FILE_OFFSET_BITS=64")
1476         fi
1477         if test $large_offt = no; then
1478                 AC_MSG_WARN([No 64 bit file size support available])
1479         fi
1480
1481         dnl *****************************
1482         dnl *** Checks for libsocket  ***
1483         dnl *****************************
1484         AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
1485
1486         case "$host" in
1487                 *-*-*freebsd*)
1488                         dnl *****************************
1489                         dnl *** Checks for libinotify ***
1490                         dnl *****************************
1491                         AC_CHECK_LIB(inotify, inotify_init, LIBS="$LIBS -linotify")
1492         esac
1493
1494         dnl *******************************
1495         dnl *** Checks for MSG_NOSIGNAL ***
1496         dnl *******************************
1497         AC_MSG_CHECKING(for MSG_NOSIGNAL)
1498         AC_TRY_COMPILE([#include <sys/socket.h>], [
1499                 int f = MSG_NOSIGNAL;
1500         ], [
1501                 # Yes, we have it...
1502                 AC_MSG_RESULT(yes)
1503                 AC_DEFINE(HAVE_MSG_NOSIGNAL, 1, [Have MSG_NOSIGNAL])
1504         ], [
1505                 # We'll have to use signals
1506                 AC_MSG_RESULT(no)
1507         ])
1508
1509         dnl *****************************
1510         dnl *** Checks for IPPROTO_IP ***
1511         dnl *****************************
1512         AC_MSG_CHECKING(for IPPROTO_IP)
1513         AC_TRY_COMPILE([#include <netinet/in.h>], [
1514                 int level = IPPROTO_IP;
1515         ], [
1516                 # Yes, we have it...
1517                 AC_MSG_RESULT(yes)
1518                 AC_DEFINE(HAVE_IPPROTO_IP, 1, [Have IPPROTO_IP])
1519         ], [
1520                 # We'll have to use getprotobyname
1521                 AC_MSG_RESULT(no)
1522         ])
1523
1524         dnl *******************************
1525         dnl *** Checks for IPPROTO_IPV6 ***
1526         dnl *******************************
1527         AC_MSG_CHECKING(for IPPROTO_IPV6)
1528         AC_TRY_COMPILE([#include <netinet/in.h>], [
1529                 int level = IPPROTO_IPV6;
1530         ], [
1531                 # Yes, we have it...
1532                 AC_MSG_RESULT(yes)
1533                 AC_DEFINE(HAVE_IPPROTO_IPV6, 1, [Have IPPROTO_IPV6])
1534         ], [
1535                 # We'll have to use getprotobyname
1536                 AC_MSG_RESULT(no)
1537         ])
1538
1539         dnl ******************************
1540         dnl *** Checks for IPPROTO_TCP ***
1541         dnl ******************************
1542         AC_MSG_CHECKING(for IPPROTO_TCP)
1543         AC_TRY_COMPILE([#include <netinet/in.h>], [
1544                 int level = IPPROTO_TCP;
1545         ], [
1546                 # Yes, we have it...
1547                 AC_MSG_RESULT(yes)
1548                 AC_DEFINE(HAVE_IPPROTO_TCP, 1, [Have IPPROTO_TCP])
1549         ], [
1550                 # We'll have to use getprotobyname
1551                 AC_MSG_RESULT(no)
1552         ])
1553
1554         dnl *****************************
1555         dnl *** Checks for SOL_IP     ***
1556         dnl *****************************
1557         AC_MSG_CHECKING(for SOL_IP)
1558         AC_TRY_COMPILE([#include <netdb.h>], [
1559                 int level = SOL_IP;
1560         ], [
1561                 # Yes, we have it...
1562                 AC_MSG_RESULT(yes)
1563                 AC_DEFINE(HAVE_SOL_IP, 1, [Have SOL_IP])
1564         ], [
1565                 # We'll have to use getprotobyname
1566                 AC_MSG_RESULT(no)
1567         ])
1568
1569         dnl *****************************
1570         dnl *** Checks for SOL_IPV6     ***
1571         dnl *****************************
1572         AC_MSG_CHECKING(for SOL_IPV6)
1573         AC_TRY_COMPILE([#include <netdb.h>], [
1574                 int level = SOL_IPV6;
1575         ], [
1576                 # Yes, we have it...
1577                 AC_MSG_RESULT(yes)
1578                 AC_DEFINE(HAVE_SOL_IPV6, 1, [Have SOL_IPV6])
1579         ], [
1580                 # We'll have to use getprotobyname
1581                 AC_MSG_RESULT(no)
1582         ])
1583
1584         dnl *****************************
1585         dnl *** Checks for SOL_TCP    ***
1586         dnl *****************************
1587         AC_MSG_CHECKING(for SOL_TCP)
1588         AC_TRY_COMPILE([#include <netdb.h>], [
1589                 int level = SOL_TCP;
1590         ], [
1591                 # Yes, we have it...
1592                 AC_MSG_RESULT(yes)
1593                 AC_DEFINE(HAVE_SOL_TCP, 1, [Have SOL_TCP])
1594         ], [
1595                 # We'll have to use getprotobyname
1596                 AC_MSG_RESULT(no)
1597         ])
1598
1599         dnl *****************************
1600         dnl *** Checks for IP_PKTINFO ***
1601         dnl *****************************
1602         AC_MSG_CHECKING(for IP_PKTINFO)
1603         AC_TRY_COMPILE([#include <linux/in.h>], [
1604                 int level = IP_PKTINFO;
1605         ], [
1606                 # Yes, we have it...
1607                 AC_MSG_RESULT(yes)
1608                 AC_DEFINE(HAVE_IP_PKTINFO, 1, [Have IP_PKTINFO])
1609         ], [
1610                 AC_MSG_RESULT(no)
1611         ])
1612
1613         dnl *****************************
1614         dnl *** Checks for IPV6_PKTINFO ***
1615         dnl *****************************
1616         AC_MSG_CHECKING(for IPV6_PKTINFO)
1617         AC_TRY_COMPILE([#include <netdb.h>], [
1618                 int level = IPV6_PKTINFO;
1619         ], [
1620                 # Yes, we have it...
1621                 AC_MSG_RESULT(yes)
1622                 AC_DEFINE(HAVE_IPV6_PKTINFO, 1, [Have IPV6_PKTINFO])
1623         ], [
1624                 AC_MSG_RESULT(no)
1625         ])
1626
1627         dnl **********************************
1628         dnl *** Checks for IP_DONTFRAG     ***
1629         dnl **********************************
1630         AC_MSG_CHECKING(for IP_DONTFRAG)
1631         AC_TRY_COMPILE([#include <netinet/in.h>], [
1632                 int level = IP_DONTFRAG;
1633         ], [
1634                 # Yes, we have it...
1635                 AC_MSG_RESULT(yes)
1636                 AC_DEFINE(HAVE_IP_DONTFRAG, 1, [Have IP_DONTFRAG])
1637         ], [
1638                 AC_MSG_RESULT(no)
1639         ])
1640
1641         dnl **********************************
1642         dnl *** Checks for IP_DONTFRAGMENT ***
1643         dnl **********************************
1644         AC_MSG_CHECKING(for IP_DONTFRAGMENT)
1645         AC_TRY_COMPILE([#include <Ws2ipdef.h>], [
1646                 int level = IP_DONTFRAGMENT;
1647         ], [
1648                 # Yes, we have it...
1649                 AC_MSG_RESULT(yes)
1650                 AC_DEFINE(HAVE_IP_DONTFRAGMENT, 1, [Have IP_DONTFRAGMENT])
1651         ], [
1652                 AC_MSG_RESULT(no)
1653         ])
1654
1655         dnl **********************************
1656         dnl *** Checks for IP_MTU_DISCOVER ***
1657         dnl **********************************
1658         AC_MSG_CHECKING(for IP_MTU_DISCOVER)
1659         AC_TRY_COMPILE([#include <linux/in.h>], [
1660                 int level = IP_MTU_DISCOVER;
1661         ], [
1662                 # Yes, we have it...
1663                 AC_MSG_RESULT(yes)
1664                 AC_DEFINE(HAVE_IP_MTU_DISCOVER, 1, [Have IP_MTU_DISCOVER])
1665         ], [
1666                 AC_MSG_RESULT(no)
1667         ])
1668
1669         dnl **********************************
1670         dnl *** Checks for  IP_PMTUDISC_DO ***
1671         dnl **********************************
1672         AC_MSG_CHECKING(for IP_PMTUDISC_DO)
1673         AC_TRY_COMPILE([#include <linux/in.h>], [
1674                 int level = IP_PMTUDISC_DO;
1675         ], [
1676                 # Yes, we have it...
1677                 AC_MSG_RESULT(yes)
1678                 AC_DEFINE(HAVE_IP_PMTUDISC_DO, 1, [Have IP_PMTUDISC_DO])
1679         ], [
1680                 AC_MSG_RESULT(no)
1681         ])
1682
1683         dnl *********************************
1684         dnl *** Check for struct ip_mreqn ***
1685         dnl *********************************
1686         AC_MSG_CHECKING(for struct ip_mreqn)
1687         AC_TRY_COMPILE([#include <netinet/in.h>], [
1688                 struct ip_mreqn mreq;
1689                 mreq.imr_address.s_addr = 0;
1690         ], [
1691                 # Yes, we have it...
1692                 AC_MSG_RESULT(yes)
1693                 AC_DEFINE(HAVE_STRUCT_IP_MREQN, 1, [Have struct ip_mreqn])
1694         ], [
1695                 # We'll just have to try and use struct ip_mreq
1696                 AC_MSG_RESULT(no)
1697                 AC_MSG_CHECKING(for struct ip_mreq)
1698                 AC_TRY_COMPILE([#include <netinet/in.h>], [
1699                         struct ip_mreq mreq;
1700                         mreq.imr_interface.s_addr = 0;
1701                 ], [
1702                         # Yes, we have it...
1703                         AC_MSG_RESULT(yes)
1704                         AC_DEFINE(HAVE_STRUCT_IP_MREQ, 1, [Have struct ip_mreq])
1705                 ], [
1706                         # No multicast support
1707                         AC_MSG_RESULT(no)
1708                 ])
1709         ])
1710
1711         dnl **********************************
1712         dnl *** Check for getaddrinfo ***
1713         dnl **********************************
1714         AC_MSG_CHECKING(for getaddrinfo)
1715                 AC_TRY_LINK([
1716                 #include <stdio.h>
1717                 #include <netdb.h>
1718         ], [
1719                 getaddrinfo(NULL,NULL,NULL,NULL);
1720         ], [
1721                 # Yes, we have it...
1722                 AC_MSG_RESULT(yes)
1723                 AC_DEFINE(HAVE_GETADDRINFO, 1, [Have getaddrinfo])
1724         ], [
1725                 AC_MSG_RESULT(no)
1726         ])
1727
1728         dnl **********************************
1729         dnl *** Check for gethostbyname2_r ***
1730         dnl **********************************
1731         AC_MSG_CHECKING(for gethostbyname2_r)
1732                 AC_TRY_LINK([
1733                 #include <stdio.h>
1734                 #include <netdb.h>
1735         ], [
1736
1737                 gethostbyname2_r(NULL,0,NULL,NULL,0,NULL,NULL);
1738         ], [
1739                 # Yes, we have it...
1740                 AC_MSG_RESULT(yes)
1741                 AC_DEFINE(HAVE_GETHOSTBYNAME2_R, 1, [Have gethostbyname2_r])
1742         ], [
1743                 AC_MSG_RESULT(no)
1744         ])
1745
1746         dnl **********************************
1747         dnl *** Check for gethostbyname2 ***
1748         dnl **********************************
1749         AC_MSG_CHECKING(for gethostbyname2)
1750                 AC_TRY_LINK([
1751                 #include <stdio.h>
1752                 #include <netdb.h>
1753         ], [
1754                 gethostbyname2(NULL,0);
1755         ], [
1756                 # Yes, we have it...
1757                 AC_MSG_RESULT(yes)
1758                 AC_DEFINE(HAVE_GETHOSTBYNAME2, 1, [Have gethostbyname2])
1759         ], [
1760                 AC_MSG_RESULT(no)
1761         ])
1762
1763         dnl **********************************
1764         dnl *** Check for gethostbyname ***
1765         dnl **********************************
1766         AC_MSG_CHECKING(for gethostbyname)
1767                 AC_TRY_LINK([
1768                 #include <stdio.h>
1769                 #include <netdb.h>
1770         ], [
1771                 gethostbyname(NULL);
1772         ], [
1773                 # Yes, we have it...
1774                 AC_MSG_RESULT(yes)
1775                 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [Have gethostbyname])
1776         ], [
1777                 AC_MSG_RESULT(no)
1778         ])
1779
1780         dnl **********************************
1781         dnl *** Check for getprotobyname ***
1782         dnl **********************************
1783         AC_MSG_CHECKING(for getprotobyname)
1784                 AC_TRY_LINK([
1785                 #include <stdio.h>
1786                 #include <netdb.h>
1787         ], [
1788                 getprotobyname(NULL);
1789         ], [
1790                 # Yes, we have it...
1791                 AC_MSG_RESULT(yes)
1792                 AC_DEFINE(HAVE_GETPROTOBYNAME, 1, [Have getprotobyname])
1793         ], [
1794                 AC_MSG_RESULT(no)
1795         ])
1796
1797         dnl **********************************
1798         dnl *** Check for getnameinfo ***
1799         dnl **********************************
1800         AC_MSG_CHECKING(for getnameinfo)
1801                 AC_TRY_LINK([
1802                 #include <stdio.h>
1803                 #include <netdb.h>
1804         ], [
1805                 getnameinfo (NULL, 0, NULL, 0, NULL, 0, 0);
1806         ], [
1807                 # Yes, we have it...
1808                 AC_MSG_RESULT(yes)
1809                 AC_DEFINE(HAVE_GETNAMEINFO, 1, [Have getnameinfo])
1810         ], [
1811                 AC_MSG_RESULT(no)
1812         ])
1813
1814
1815         dnl **********************************
1816         dnl *** Check for inet_ntop ***
1817         dnl **********************************
1818         AC_MSG_CHECKING(for inet_ntop)
1819                 AC_TRY_LINK([
1820                 #include <stdio.h>
1821                 #include <arpa/inet.h>
1822         ], [
1823                 inet_ntop (0, NULL, NULL, 0);
1824         ], [
1825                 # Yes, we have it...
1826                 AC_MSG_RESULT(yes)
1827                 AC_DEFINE(HAVE_INET_NTOP, 1, [Have inet_ntop])
1828         ], [
1829                 AC_MSG_RESULT(no)
1830         ])
1831
1832         dnl *****************************
1833         dnl *** Checks for libnsl     ***
1834         dnl *****************************
1835         AC_CHECK_FUNC(gethostbyaddr, , AC_CHECK_LIB(nsl, gethostbyaddr, LIBS="$LIBS -lnsl"))
1836
1837         AC_CHECK_FUNCS(inet_pton inet_aton)
1838
1839         dnl *****************************
1840         dnl *** Checks for libxnet    ***
1841         dnl *****************************
1842         case "${host}" in
1843                 *solaris* )
1844                         AC_MSG_CHECKING(for Solaris XPG4 support)
1845                         if test -f /usr/lib/libxnet.so; then
1846                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=500"
1847                                 CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
1848                                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED=1"
1849                                 LIBS="$LIBS -lxnet"
1850                                 AC_MSG_RESULT(yes)
1851                         else
1852                                 AC_MSG_RESULT(no)
1853                         fi
1854
1855                         if test "$GCC" = "yes"; then
1856                                 CFLAGS="$CFLAGS -Wno-char-subscripts"
1857                         fi
1858                 ;;
1859         esac
1860
1861         dnl *****************************
1862         dnl *** Checks for libpthread ***
1863         dnl *****************************
1864 # on FreeBSD -STABLE, the pthreads functions all reside in libc_r
1865 # and libpthread does not exist
1866 #
1867         case "${host}" in
1868                 *-*-*freebsd*)
1869                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1870                 ;;
1871                 *-*-*openbsd*)
1872                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -pthread")
1873                 ;;
1874                 *)
1875                         AC_CHECK_LIB(pthread, main, LIBS="$LIBS -lpthread")
1876                 ;;
1877         esac
1878         AC_CHECK_HEADERS(pthread.h)
1879         AC_CHECK_HEADERS(pthread_np.h)
1880         AC_CHECK_FUNCS(pthread_mutex_timedlock)
1881         AC_CHECK_FUNCS(pthread_getattr_np pthread_attr_get_np pthread_setname_np)
1882         AC_CHECK_FUNCS(pthread_kill)
1883         AC_MSG_CHECKING(for PTHREAD_MUTEX_RECURSIVE)
1884         AC_TRY_COMPILE([ #include <pthread.h>], [
1885                 pthread_mutexattr_t attr;
1886                 pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
1887         ], [
1888                 AC_MSG_RESULT(ok)
1889         ], [
1890                 AC_MSG_RESULT(no)
1891                 AC_ERROR(Posix system lacks support for recursive mutexes)
1892         ])
1893         AC_CHECK_FUNCS(pthread_attr_setstacksize)
1894         AC_CHECK_FUNCS(pthread_attr_getstack pthread_attr_getstacksize)
1895         AC_CHECK_FUNCS(pthread_get_stacksize_np pthread_get_stackaddr_np)
1896
1897         dnl **********************************
1898         dnl *** Check for mincore ***
1899         dnl **********************************
1900         AC_MSG_CHECKING(for mincore)
1901                 AC_TRY_LINK([
1902                 #include <stdio.h>
1903                 #include <sys/types.h>
1904                 #include <sys/mman.h>
1905         ], [
1906                 mincore(NULL, 0, NULL);
1907         ], [
1908                 # Yes, we have it...
1909                 AC_MSG_RESULT(yes)
1910                 AC_DEFINE(HAVE_MINCORE, 1, [Have mincore])
1911         ], [
1912                 AC_MSG_RESULT(no)
1913         ])
1914
1915         dnl ***********************************
1916         dnl *** Checks for working __thread ***
1917         dnl ***********************************
1918         AC_MSG_CHECKING(for working __thread)
1919         if test "x$with_tls" != "x__thread"; then
1920                 AC_MSG_RESULT(disabled)
1921         elif test "x$cross_compiling" = "xyes"; then
1922                 AC_MSG_RESULT(cross compiling, assuming yes)
1923         else
1924                 AC_TRY_RUN([
1925                         #if defined(__APPLE__) && defined(__clang__)
1926                         #error "__thread does not currently work with clang on Mac OS X"
1927                         #endif
1928
1929                         #include <pthread.h>
1930                         __thread int i;
1931                         static int res1, res2;
1932
1933                         void thread_main (void *arg)
1934                         {
1935                                 i = arg;
1936                                 sleep (1);
1937                                 if (arg == 1)
1938                                         res1 = (i == arg);
1939                                 else
1940                                         res2 = (i == arg);
1941                         }
1942
1943                         int main () {
1944                                 pthread_t t1, t2;
1945
1946                                 i = 5;
1947
1948                                 pthread_create (&t1, NULL, thread_main, 1);
1949                                 pthread_create (&t2, NULL, thread_main, 2);
1950
1951                                 pthread_join (t1, NULL);
1952                                 pthread_join (t2, NULL);
1953
1954                                 return !(res1 + res2 == 2);
1955                         }
1956                 ], [
1957                                 AC_MSG_RESULT(yes)
1958                 ], [
1959                                 AC_MSG_RESULT(no)
1960                                 with_tls=pthread
1961                 ])
1962         fi
1963
1964         dnl **************************************
1965         dnl *** Checks for working sigaltstack ***
1966         dnl **************************************
1967         AC_MSG_CHECKING(for working sigaltstack)
1968         if test "x$with_sigaltstack" != "xyes"; then
1969                 AC_MSG_RESULT(disabled)
1970         elif test "x$cross_compiling" = "xyes"; then
1971                 AC_MSG_RESULT(cross compiling, assuming yes)
1972         else
1973                 AC_TRY_RUN([
1974                         #include <stdio.h>
1975                         #include <stdlib.h>
1976                         #include <unistd.h>
1977                         #include <signal.h>
1978                         #include <pthread.h>
1979                         #include <sys/wait.h>
1980                         #if defined(__FreeBSD__) || defined(__NetBSD__)
1981                         #define SA_STACK SA_ONSTACK
1982                         #endif
1983                         static void
1984                         sigsegv_signal_handler (int _dummy, siginfo_t *info, void *context)
1985                         {
1986                                 exit (0);
1987                         }
1988
1989                         volatile char*__ptr = NULL;
1990                         static void *
1991                         loop (void *ignored)
1992                         {
1993                                 *__ptr = 0;
1994                                 return NULL;
1995                         }
1996
1997                         static void
1998                         child ()
1999                         {
2000                                 struct sigaction sa;
2001                         #ifdef __APPLE__
2002                                 stack_t sas;
2003                         #else
2004                                 struct sigaltstack sas;
2005                         #endif
2006                                 pthread_t id;
2007                                 pthread_attr_t attr;
2008
2009                                 sa.sa_sigaction = sigsegv_signal_handler;
2010                                 sigemptyset (&sa.sa_mask);
2011                                 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
2012                                 if (sigaction (SIGSEGV, &sa, NULL) == -1) {
2013                                         perror ("sigaction");
2014                                         return;
2015                                 }
2016
2017                                 /* x86 darwin deliver segfaults using SIGBUS */
2018                                 if (sigaction (SIGBUS, &sa, NULL) == -1) {
2019                                         perror ("sigaction");
2020                                         return;
2021                                 }
2022                                 sas.ss_sp = malloc (SIGSTKSZ);
2023                                 sas.ss_size = SIGSTKSZ;
2024                                 sas.ss_flags = 0;
2025                                 if (sigaltstack (&sas, NULL) == -1) {
2026                                         perror ("sigaltstack");
2027                                         return;
2028                                 }
2029
2030                                 pthread_attr_init (&attr);
2031                                 if (pthread_create(&id, &attr, loop, &attr) != 0) {
2032                                         printf ("pthread_create\n");
2033                                         return;
2034                                 }
2035
2036                                 sleep (100);
2037                         }
2038
2039                         int
2040                         main ()
2041                         {
2042                                 pid_t son;
2043                                 int status;
2044                                 int i;
2045
2046                                 son = fork ();
2047                                 if (son == -1) {
2048                                         return 1;
2049                                 }
2050
2051                                 if (son == 0) {
2052                                         child ();
2053                                         return 0;
2054                                 }
2055
2056                                 for (i = 0; i < 300; ++i) {
2057                                         waitpid (son, &status, WNOHANG);
2058                                         if (WIFEXITED (status) && WEXITSTATUS (status) == 0)
2059                                                 return 0;
2060                                         usleep (10000);
2061                                 }
2062
2063                                 kill (son, SIGKILL);
2064                                 return 1;
2065                         }
2066
2067                 ], [
2068                                 AC_MSG_RESULT(yes)
2069                                 AC_DEFINE(HAVE_WORKING_SIGALTSTACK, 1, [Have a working sigaltstack])
2070                 ], [
2071                                 with_sigaltstack=no
2072                                 AC_MSG_RESULT(no)
2073                 ])
2074         fi
2075
2076         dnl ********************************
2077         dnl *** Checks for semaphore lib ***
2078         dnl ********************************
2079         # 'Real Time' functions on Solaris
2080         # posix4 on Solaris 2.6
2081         # pthread (first!) on Linux
2082         AC_SEARCH_LIBS(sem_init, pthread rt posix4)
2083
2084         AC_SEARCH_LIBS(shm_open, pthread rt posix4)
2085         AC_CHECK_FUNCS(shm_open)
2086
2087         dnl ********************************
2088         dnl *** Checks for timezone stuff **
2089         dnl ********************************
2090         AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
2091                 AC_TRY_COMPILE([
2092                         #include <time.h>
2093                         ], [
2094                         struct tm tm;
2095                         tm.tm_gmtoff = 1;
2096                         ], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no))
2097         if test $ac_cv_struct_tm_gmtoff = yes; then
2098                 AC_DEFINE(HAVE_TM_GMTOFF, 1, [Have tm_gmtoff])
2099         else
2100                 AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
2101                         AC_TRY_COMPILE([
2102                                 #include <time.h>
2103                         ], [
2104                                 timezone = 1;
2105                         ], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
2106                 if test $ac_cv_var_timezone = yes; then
2107                         AC_DEFINE(HAVE_TIMEZONE, 1, [Have timezone variable])
2108                 else
2109                         AC_ERROR(unable to find a way to determine timezone)
2110                 fi
2111         fi
2112
2113         dnl *********************************
2114         dnl *** Checks for math functions ***
2115         dnl *********************************
2116         AC_SEARCH_LIBS(sqrtf, m)
2117         if test "x$has_broken_apple_cpp" != "xyes"; then
2118                 AC_CHECK_FUNCS(finite, , AC_MSG_CHECKING(for finite in math.h)
2119                         AC_TRY_LINK([#include <math.h>],
2120                         [ finite(0.0); ],
2121                         AC_DEFINE(HAVE_FINITE, 1, [Have finite in -lm]) AC_MSG_RESULT(yes),
2122                         AC_MSG_RESULT(no)))
2123         fi
2124         AC_CHECK_FUNCS(isfinite, , AC_MSG_CHECKING(for isfinite in math.h)
2125                 AC_TRY_LINK([#include <math.h>],
2126                 [ isfinite(0.0); ],
2127                 AC_DEFINE(HAVE_ISFINITE, 1, [Have isfinite]) AC_MSG_RESULT(yes),
2128                 AC_MSG_RESULT(no)))
2129
2130         dnl ****************************************************************
2131         dnl *** Checks for working poll() (macosx defines it but doesn't ***
2132         dnl *** have it in the library (duh))                            ***
2133         dnl ****************************************************************
2134         AC_CHECK_FUNCS(poll)
2135
2136         dnl *************************
2137         dnl *** Check for signbit ***
2138         dnl *************************
2139         AC_MSG_CHECKING(for signbit)
2140         AC_TRY_LINK([#include <math.h>], [
2141                 int s = signbit(1.0);
2142         ], [
2143                 AC_MSG_RESULT(yes)
2144                 AC_DEFINE(HAVE_SIGNBIT, 1, [Have signbit])
2145         ], [
2146                 AC_MSG_RESULT(no)
2147         ])
2148
2149         dnl **********************************
2150         dnl *** epoll                      ***
2151         dnl **********************************
2152         if test "x$ac_cv_header_nacl_nacl_dyncode_h" = "xno"; then
2153                 AC_CHECK_HEADERS(sys/epoll.h)
2154                 haveepoll=no
2155                 AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], )
2156                 if test "x$haveepoll" = "xyes" -a "x$ac_cv_header_sys_epoll_h" = "xyes"; then
2157                         AC_DEFINE(HAVE_EPOLL, 1, [epoll supported])
2158                 fi
2159         fi
2160
2161         havekqueue=no
2162
2163         AC_CHECK_HEADERS(sys/event.h)
2164         AC_CHECK_FUNCS(kqueue, [havekqueue=yes], )
2165
2166         dnl **************************************
2167         dnl * Darwin has a race that prevents us from using reliably:
2168         dnl * http://lists.apple.com/archives/darwin-dev/2011/Jun/msg00016.html
2169         dnl * Since kqueue is mostly used for scaling large web servers,
2170         dnl * and very few folks run Mono on large web servers on OSX, falling
2171         dnl * back
2172         dnl **************************************
2173         if test "x$havekqueue" = "xyes" -a "x$ac_cv_header_sys_event_h" = "xyes"; then
2174                 if test "x$host_darwin" = "xno"; then
2175                         AC_DEFINE(USE_KQUEUE_FOR_THREADPOOL, 1, [Use kqueue for the threadpool])
2176                 fi
2177         fi
2178
2179         dnl ******************************
2180         dnl *** Checks for SIOCGIFCONF ***
2181         dnl ******************************
2182         AC_CHECK_HEADERS(sys/ioctl.h)
2183         AC_CHECK_HEADERS(net/if.h, [], [],
2184            [
2185            #ifdef HAVE_SYS_TYPES_H
2186            # include <sys/types.h>
2187            #endif
2188            #ifdef HAVE_SYS_SOCKET_H
2189            # include <sys/socket.h>
2190            #endif
2191            ])
2192         AC_MSG_CHECKING(for ifreq)
2193         AC_TRY_COMPILE([
2194                 #include <stdio.h>
2195                 #include <sys/ioctl.h>
2196                 #include <net/if.h>
2197                 ], [
2198                 struct ifconf ifc;
2199                 struct ifreq *ifr;
2200                 void *x;
2201                 ifc.ifc_len = 0;
2202                 ifc.ifc_buf = NULL;
2203                 x = (void *) &ifr->ifr_addr;
2204                 ],[
2205                         AC_MSG_RESULT(yes)
2206                         AC_DEFINE(HAVE_SIOCGIFCONF, 1, [Can get interface list])
2207                 ], [
2208                         AC_MSG_RESULT(no)
2209                 ])
2210         dnl **********************************
2211         dnl ***     Checks for sin_len     ***
2212         dnl **********************************
2213         AC_MSG_CHECKING(for sockaddr_in.sin_len)
2214         AC_TRY_COMPILE([
2215                 #include <netinet/in.h>
2216                 ], [
2217                 struct sockaddr_in saddr;
2218                 saddr.sin_len = sizeof (saddr);
2219                 ],[
2220                         AC_MSG_RESULT(yes)
2221                         AC_DEFINE(HAVE_SOCKADDR_IN_SIN_LEN, 1, [sockaddr_in has sin_len])
2222                 ], [
2223                         AC_MSG_RESULT(no)
2224                 ])
2225         dnl **********************************
2226         dnl ***    Checks for sin6_len     ***
2227         dnl **********************************
2228         AC_MSG_CHECKING(for sockaddr_in6.sin6_len)
2229         AC_TRY_COMPILE([
2230                 #include <netinet/in.h>
2231                 ], [
2232                 struct sockaddr_in6 saddr6;
2233                 saddr6.sin6_len = sizeof (saddr6);
2234                 ],[
2235                         AC_MSG_RESULT(yes)
2236                         AC_DEFINE(HAVE_SOCKADDR_IN6_SIN_LEN, 1, [sockaddr_in6 has sin6_len])
2237                 ], [
2238                         AC_MSG_RESULT(no)
2239                 ])
2240         dnl **********************************
2241         dnl *** Check for getifaddrs       ***
2242         dnl **********************************
2243         AC_MSG_CHECKING(for getifaddrs)
2244                 AC_TRY_LINK([
2245                 #include <stdio.h>
2246                 #include <sys/types.h>
2247                 #include <sys/socket.h>
2248                 #include <ifaddrs.h>
2249         ], [
2250                 getifaddrs(NULL);
2251         ], [
2252                 # Yes, we have it...
2253                 AC_MSG_RESULT(yes)
2254                 AC_DEFINE(HAVE_GETIFADDRS, 1, [Have getifaddrs])
2255         ], [
2256                 AC_MSG_RESULT(no)
2257         ])
2258         dnl **********************************
2259         dnl *** Check for if_nametoindex   ***
2260         dnl **********************************
2261         AC_MSG_CHECKING(for if_nametoindex)
2262                 AC_TRY_LINK([
2263                 #include <stdio.h>
2264                 #include <sys/types.h>
2265                 #include <sys/socket.h>
2266                 #include <net/if.h>
2267         ], [
2268                 if_nametoindex(NULL);
2269         ], [
2270                 # Yes, we have it...
2271                 AC_MSG_RESULT(yes)
2272                 AC_DEFINE(HAVE_IF_NAMETOINDEX, 1, [Have if_nametoindex])
2273         ], [
2274                 AC_MSG_RESULT(no)
2275         ])
2276
2277         dnl **********************************
2278         dnl *** Checks for MonoPosixHelper ***
2279         dnl **********************************
2280         AC_CHECK_HEADERS(checklist.h)
2281         AC_CHECK_HEADERS(pathconf.h)
2282         AC_CHECK_HEADERS(fstab.h)
2283         AC_CHECK_HEADERS(attr/xattr.h)
2284         AC_CHECK_HEADERS(sys/extattr.h)
2285         AC_CHECK_HEADERS(sys/sendfile.h)
2286         AC_CHECK_HEADERS(sys/statvfs.h)
2287         AC_CHECK_HEADERS(sys/statfs.h)
2288         AC_CHECK_HEADERS(sys/vfstab.h)
2289         AC_CHECK_HEADERS(sys/xattr.h)
2290         AC_CHECK_HEADERS(sys/mman.h)
2291         AC_CHECK_HEADERS(sys/param.h)
2292         AC_CHECK_HEADERS(sys/mount.h, [], [],
2293                 [
2294                 #ifdef HAVE_SYS_PARAM_H
2295                 # include <sys/param.h>
2296                 #endif
2297                 ])
2298         AC_CHECK_HEADERS(sys/mount.h)
2299         AC_CHECK_FUNCS(confstr)
2300         AC_CHECK_FUNCS(seekdir telldir)
2301         AC_CHECK_FUNCS(getdomainname)
2302         AC_CHECK_FUNCS(setdomainname)
2303         AC_CHECK_FUNCS(endgrent getgrent fgetgrent setgrent)
2304         AC_CHECK_FUNCS(setgroups)
2305         AC_CHECK_FUNCS(endpwent getpwent fgetpwent setpwent)
2306         AC_CHECK_FUNCS(getfsstat)
2307         AC_CHECK_FUNCS(lutimes futimes)
2308         AC_CHECK_FUNCS(mremap)
2309         AC_CHECK_FUNCS(remap_file_pages)
2310         AC_CHECK_FUNCS(posix_fadvise)
2311         AC_CHECK_FUNCS(posix_fallocate)
2312         AC_CHECK_FUNCS(posix_madvise)
2313         AC_CHECK_FUNCS(vsnprintf)
2314         AC_CHECK_FUNCS(sendfile)
2315         AC_CHECK_FUNCS(gethostid sethostid)
2316         AC_CHECK_FUNCS(sethostname)
2317         AC_CHECK_FUNCS(statfs)
2318         AC_CHECK_FUNCS(fstatfs)
2319         AC_CHECK_FUNCS(statvfs)
2320         AC_CHECK_FUNCS(fstatvfs)
2321         AC_CHECK_FUNCS(stime)
2322         AC_CHECK_FUNCS(strerror_r)
2323         AC_CHECK_FUNCS(ttyname_r)
2324         AC_CHECK_FUNCS(psignal)
2325         AC_CHECK_FUNCS(getlogin_r)
2326         AC_CHECK_FUNCS(lockf)
2327         AC_CHECK_FUNCS(swab)
2328         AC_CHECK_FUNCS(setusershell endusershell)
2329         AC_CHECK_FUNCS(futimens utimensat)
2330         AC_CHECK_FUNCS(fstatat mknodat readlinkat)
2331         AC_CHECK_FUNCS(readv writev preadv pwritev)
2332         AC_CHECK_FUNCS(setpgid)
2333         AC_CHECK_FUNCS(system)
2334         AC_CHECK_FUNCS(fork execv execve)
2335         AC_CHECK_FUNCS(accept4)
2336         AC_CHECK_SIZEOF(size_t)
2337         AC_CHECK_TYPES([blksize_t], [AC_DEFINE(HAVE_BLKSIZE_T)], ,
2338                 [#include <sys/types.h>
2339                  #include <sys/stat.h>
2340                  #include <unistd.h>])
2341         AC_CHECK_TYPES([blkcnt_t], [AC_DEFINE(HAVE_BLKCNT_T)], ,
2342                 [#include <sys/types.h>
2343                  #include <sys/stat.h>
2344                  #include <unistd.h>])
2345         AC_CHECK_TYPES([suseconds_t], [AC_DEFINE(HAVE_SUSECONDS_T)], ,
2346                 [#include <sys/time.h>])
2347         AC_CHECK_TYPES([struct cmsghdr], [AC_DEFINE(HAVE_STRUCT_CMSGHDR)], ,
2348                 [#include <sys/socket.h>])
2349         AC_CHECK_TYPES([struct flock], [AC_DEFINE(HAVE_STRUCT_FLOCK)], ,
2350                 [#include <unistd.h>
2351                  #include <fcntl.h>])
2352         AC_CHECK_TYPES([struct iovec], [AC_DEFINE(HAVE_STRUCT_IOVEC)], ,
2353                 [#include <sys/uio.h>])
2354         AC_CHECK_TYPES([struct linger], [AC_DEFINE(HAVE_STRUCT_LINGER)], ,
2355                 [#include <sys/socket.h>])
2356         AC_CHECK_TYPES([struct pollfd], [AC_DEFINE(HAVE_STRUCT_POLLFD)], ,
2357                 [#include <sys/poll.h>])
2358         AC_CHECK_TYPES([struct sockaddr], [AC_DEFINE(HAVE_STRUCT_SOCKADDR)], ,
2359                 [#include <sys/socket.h>])
2360         AC_CHECK_TYPES([struct sockaddr_storage], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE)], ,
2361                 [#include <sys/socket.h>])
2362         AC_CHECK_TYPES([struct sockaddr_in], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN)], ,
2363                 [#include <netinet/in.h>])
2364         AC_CHECK_TYPES([struct sockaddr_in6], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6)], ,
2365                 [#include <netinet/in.h>])
2366         AC_CHECK_TYPES([struct sockaddr_un], [AC_DEFINE(HAVE_STRUCT_SOCKADDR_UN)], ,
2367                 [#include <sys/un.h>])
2368         AC_CHECK_TYPES([struct stat], [AC_DEFINE(HAVE_STRUCT_STAT)], ,
2369                 [#include <sys/types.h>
2370                  #include <sys/stat.h>
2371                  #include <unistd.h>])
2372         AC_CHECK_TYPES([struct timespec], [AC_DEFINE(HAVE_STRUCT_TIMESPEC)], ,
2373                 [#include <time.h>])
2374         AC_CHECK_TYPES([struct timeval], [AC_DEFINE(HAVE_STRUCT_TIMEVAL)], ,
2375                 [#include <sys/time.h>
2376                  #include <sys/types.h>
2377                  #include <utime.h>])
2378         AC_CHECK_TYPES([struct timezone], [AC_DEFINE(HAVE_STRUCT_TIMEZONE)], ,
2379                 [#include <sys/time.h>])
2380         AC_CHECK_TYPES([struct utimbuf], [AC_DEFINE(HAVE_STRUCT_UTIMBUF)], ,
2381                 [#include <sys/types.h>
2382                  #include <utime.h>])
2383         AC_CHECK_MEMBERS(
2384                 [struct dirent.d_off, struct dirent.d_reclen, struct dirent.d_type],,,
2385                 [#include <sys/types.h>
2386                  #include <dirent.h>])
2387         AC_CHECK_MEMBERS(
2388                 [struct passwd.pw_gecos],,,
2389                 [#include <sys/types.h>
2390                  #include <pwd.h>])
2391         AC_CHECK_MEMBERS(
2392                 [struct statfs.f_flags],,,
2393                 [#include <sys/types.h>
2394                  #include <sys/vfs.h>])
2395         AC_CHECK_MEMBERS(
2396                 [struct stat.st_atim, struct stat.st_mtim, struct stat.st_ctim],,,
2397                 [#include <sys/types.h>
2398                  #include <sys/stat.h>
2399                  #include <unistd.h>])
2400
2401         dnl Favour xattr through glibc, but use libattr if we have to
2402         AC_CHECK_FUNC(lsetxattr, ,
2403                 AC_CHECK_LIB(attr, lsetxattr, XATTR_LIB="-lattr",)
2404         )
2405         AC_SUBST(XATTR_LIB)
2406
2407         dnl kinfo_proc.kp_proc works on darwin but fails on other simil-bsds
2408         AC_CHECK_MEMBERS(
2409                 [struct kinfo_proc.kp_proc],,,
2410                 [#include <sys/types.h>
2411                  #include <sys/param.h>
2412                  #include <sys/sysctl.h>
2413                  #include <sys/proc.h>
2414                  ])
2415
2416         dnl *********************************
2417         dnl *** Checks for Windows compilation ***
2418         dnl *********************************
2419         AC_CHECK_HEADERS(sys/time.h)
2420         AC_CHECK_HEADERS(sys/param.h)
2421         AC_CHECK_HEADERS(dirent.h)
2422
2423         dnl ******************************************
2424         dnl *** Checks for OSX and iOS compilation ***
2425         dnl ******************************************
2426         AC_CHECK_HEADERS(CommonCrypto/CommonDigest.h)
2427
2428         dnl *********************************
2429         dnl *** Check for Console 2.0 I/O ***
2430         dnl *********************************
2431         AC_CHECK_HEADERS([curses.h])
2432         AC_CHECK_HEADERS([term.h], [], [],
2433         [#if HAVE_CURSES_H
2434          #include <curses.h>
2435          #endif
2436         ])
2437         AC_CHECK_HEADERS([termios.h])
2438 else
2439         dnl *********************************
2440         dnl *** Checks for Windows compilation ***
2441         dnl *********************************
2442         AC_CHECK_HEADERS(winternl.h)
2443
2444         jdk_headers_found=no
2445         AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32", AC_ERROR(bad mingw install?))
2446         AC_CHECK_LIB(psapi, main, LIBS="$LIBS -lpsapi", AC_ERROR(bad mingw install?))
2447         AC_CHECK_LIB(ole32, main, LIBS="$LIBS -lole32", AC_ERROR(bad mingw install?))
2448         AC_CHECK_LIB(winmm, main, LIBS="$LIBS -lwinmm", AC_ERROR(bad mingw install?))
2449         AC_CHECK_LIB(oleaut32, main, LIBS="$LIBS -loleaut32", AC_ERROR(bad mingw install?))
2450         AC_CHECK_LIB(advapi32, main, LIBS="$LIBS -ladvapi32", AC_ERROR(bad mingw install?))
2451         AC_CHECK_LIB(version, main, LIBS="$LIBS -lversion", AC_ERROR(bad mingw install?))
2452
2453         dnl *********************************
2454         dnl *** Check for struct ip_mreqn ***
2455         dnl *********************************
2456         AC_MSG_CHECKING(for struct ip_mreqn)
2457         AC_TRY_COMPILE([#include <ws2tcpip.h>], [
2458                 struct ip_mreqn mreq;
2459                 mreq.imr_address.s_addr = 0;
2460         ], [
2461                 # Yes, we have it...
2462                 AC_MSG_RESULT(yes)
2463                 AC_DEFINE(HAVE_STRUCT_IP_MREQN)
2464         ], [
2465                 # We'll just have to try and use struct ip_mreq
2466                 AC_MSG_RESULT(no)
2467                 AC_MSG_CHECKING(for struct ip_mreq)
2468                 AC_TRY_COMPILE([#include <ws2tcpip.h>], [
2469                         struct ip_mreq mreq;
2470                         mreq.imr_interface.s_addr = 0;
2471                 ], [
2472                         # Yes, we have it...
2473                         AC_MSG_RESULT(yes)
2474                         AC_DEFINE(HAVE_STRUCT_IP_MREQ)
2475                 ], [
2476                         # No multicast support
2477                         AC_MSG_RESULT(no)
2478                 ])
2479         ])
2480
2481         dnl **********************************
2482         dnl *** Check for getaddrinfo ***
2483         dnl **********************************
2484         AC_MSG_CHECKING(for getaddrinfo)
2485                 AC_TRY_LINK([
2486                 #include <stdio.h>
2487                 #include <winsock2.h>
2488                 #include <ws2tcpip.h>
2489         ], [
2490                 getaddrinfo(NULL,NULL,NULL,NULL);
2491         ], [
2492                 # Yes, we have it...
2493                 AC_MSG_RESULT(yes)
2494                 AC_DEFINE(HAVE_GETADDRINFO, 1, [Have getaddrinfo])
2495         ], [
2496                 AC_MSG_RESULT(no)
2497         ])
2498
2499         dnl **********************************
2500         dnl *** Check for gethostbyname ***
2501         dnl **********************************
2502         AC_MSG_CHECKING(for gethostbyname)
2503                 AC_TRY_LINK([
2504                 #include <stdio.h>
2505                 #include <winsock2.h>
2506                 #include <ws2tcpip.h>
2507         ], [
2508                 gethostbyname(NULL);
2509         ], [
2510                 # Yes, we have it...
2511                 AC_MSG_RESULT(yes)
2512                 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [Have gethostbyname])
2513         ], [
2514                 AC_MSG_RESULT(no)
2515         ])
2516
2517         dnl **********************************
2518         dnl *** Check for getprotobyname ***
2519         dnl **********************************
2520         AC_MSG_CHECKING(for getprotobyname)
2521                 AC_TRY_LINK([
2522                 #include <stdio.h>
2523                 #include <winsock2.h>
2524                 #include <ws2tcpip.h>
2525         ], [
2526                 getprotobyname(NULL);
2527         ], [
2528                 # Yes, we have it...
2529                 AC_MSG_RESULT(yes)
2530                 AC_DEFINE(HAVE_GETPROTOBYNAME, 1, [Have getprotobyname])
2531         ], [
2532                 AC_MSG_RESULT(no)
2533         ])
2534
2535         dnl **********************************
2536         dnl *** Check for getnameinfo ***
2537         dnl **********************************
2538         AC_MSG_CHECKING(for getnameinfo)
2539                 AC_TRY_LINK([
2540                 #include <stdio.h>
2541                 #include <winsock2.h>
2542                 #include <ws2tcpip.h>
2543         ], [
2544                 getnameinfo (NULL, 0, NULL, 0, NULL, 0, 0);
2545         ], [
2546                 # Yes, we have it...
2547                 AC_MSG_RESULT(yes)
2548                 AC_DEFINE(HAVE_GETNAMEINFO, 1, [Have getnameinfo])
2549         ], [
2550                 AC_MSG_RESULT(no)
2551         ])
2552
2553         dnl **********************************
2554         dnl *** Check for inet_ntop ***
2555         dnl **********************************
2556         AC_MSG_CHECKING(for inet_ntop)
2557                 AC_TRY_LINK([
2558                 #include <stdio.h>
2559                 #include <winsock2.h>
2560                 #include <ws2tcpip.h>
2561         ], [
2562                 inet_ntop (0, NULL, NULL, 0);
2563         ], [
2564                 # Yes, we have it...
2565                 AC_MSG_RESULT(yes)
2566                 AC_DEFINE(HAVE_INET_NTOP, 1, [Have inet_ntop])
2567         ], [
2568                 AC_MSG_RESULT(no)
2569         ])
2570
2571         dnl **********************************
2572         dnl *** Check for inet_pton ***
2573         dnl **********************************
2574         AC_MSG_CHECKING(for inet_pton)
2575                 AC_TRY_LINK([
2576                 #include <stdio.h>
2577                 #include <winsock2.h>
2578                 #include <ws2tcpip.h>
2579         ], [
2580                 #ifndef inet_pton
2581                 (void) inet_pton;
2582                 #endif
2583                 inet_pton (0, NULL, NULL);
2584         ], [
2585                 # Yes, we have it...
2586                 AC_MSG_RESULT(yes)
2587                 AC_DEFINE(HAVE_INET_PTON, 1, [Have inet_pton])
2588         ], [
2589                 AC_MSG_RESULT(no)
2590         ])
2591
2592         AC_CHECK_DECLS(InterlockedExchange64, [], [], [[#include <windows.h>]])
2593         AC_CHECK_DECLS(InterlockedCompareExchange64, [], [], [[#include <windows.h>]])
2594         AC_CHECK_DECLS(InterlockedDecrement64, [], [], [[#include <windows.h>]])
2595         AC_CHECK_DECLS(InterlockedIncrement64, [], [], [[#include <windows.h>]])
2596         AC_CHECK_DECLS(InterlockedAdd, [], [], [[#include <windows.h>]])
2597         AC_CHECK_DECLS(InterlockedAdd64, [], [], [[#include <windows.h>]])
2598         AC_CHECK_DECLS(__readfsdword, [], [], [[#include <windows.h>]])
2599 fi
2600
2601 dnl socklen_t check
2602 AC_MSG_CHECKING(for socklen_t)
2603 AC_TRY_COMPILE([
2604 #include <sys/types.h>
2605 #include <sys/socket.h>
2606 ],[
2607   socklen_t foo;
2608 ],[
2609 ac_cv_c_socklen_t=yes
2610         AC_DEFINE(HAVE_SOCKLEN_T, 1, [Have socklen_t])
2611         AC_MSG_RESULT(yes)
2612 ],[
2613         AC_MSG_RESULT(no)
2614 ])
2615
2616 AC_MSG_CHECKING(for array element initializer support)
2617 AC_TRY_COMPILE([#include <sys/socket.h>], [
2618         const int array[] = {[1] = 2,};
2619 ], [
2620         # Yes, we have it...
2621         AC_MSG_RESULT(yes)
2622         AC_DEFINE(HAVE_ARRAY_ELEM_INIT,1,[Supports C99 array initialization])
2623 ], [
2624         # We'll have to use signals
2625         AC_MSG_RESULT(no)
2626 ])
2627
2628 AC_CHECK_FUNCS(trunc, , AC_MSG_CHECKING(for trunc in math.h)
2629         # Simply calling trunc (0.0) is no good since gcc will optimize the call away
2630         AC_TRY_LINK([#include <math.h>],
2631         [ static void *p = &trunc; ],
2632         [
2633                 AC_DEFINE(HAVE_TRUNC)
2634                 AC_MSG_RESULT(yes)
2635                 ac_cv_trunc=yes
2636         ],
2637         AC_MSG_RESULT(no)))
2638
2639 if test "x$ac_cv_truncl" != "xyes"; then
2640    AC_CHECK_LIB(sunmath, aintl, [ AC_DEFINE(HAVE_AINTL, 1, [Has the 'aintl' function]) LIBS="$LIBS -lsunmath"])
2641 fi
2642
2643 AC_CHECK_FUNCS(execvp)
2644
2645 dnl ****************************
2646 dnl *** Look for /dev/random ***
2647 dnl ****************************
2648
2649 AC_MSG_CHECKING([if usage of random device is requested])
2650 AC_ARG_ENABLE(dev-random,
2651 [  --disable-dev-random    disable the use of the random device (enabled by default)],
2652 try_dev_random=$enableval, try_dev_random=yes)
2653
2654 AC_MSG_RESULT($try_dev_random)
2655
2656 case "{$build}" in
2657     *-openbsd*)
2658     NAME_DEV_RANDOM="/dev/srandom"
2659     ;;
2660
2661 dnl Win32 does not have /dev/random, they have their own method...
2662
2663     *-mingw*|*-*-cygwin*)
2664     ac_cv_have_dev_random=no
2665     ;;
2666
2667 dnl Everywhere else, it's /dev/random
2668
2669     *)
2670     NAME_DEV_RANDOM="/dev/random"
2671     ;;
2672 esac
2673
2674 AC_DEFINE_UNQUOTED(NAME_DEV_RANDOM, "$NAME_DEV_RANDOM", [Name of /dev/random])
2675
2676 dnl Now check if the device actually exists
2677
2678 if test "x$try_dev_random" = "xyes"; then
2679     AC_CACHE_CHECK(for random device, ac_cv_have_dev_random,
2680     [if test -r "$NAME_DEV_RANDOM" ; then
2681         ac_cv_have_dev_random=yes; else ac_cv_have_dev_random=no; fi])
2682     if test "x$ac_cv_have_dev_random" = "xyes"; then
2683         AC_DEFINE(HAVE_CRYPT_RNG, 1, [Have /dev/random])
2684     fi
2685 else
2686     AC_MSG_CHECKING(for random device)
2687     ac_cv_have_dev_random=no
2688     AC_MSG_RESULT(has been disabled)
2689 fi
2690
2691 if test "x$host_win32" = "xyes"; then
2692     AC_DEFINE(HAVE_CRYPT_RNG)
2693 fi
2694
2695 if test "x$ac_cv_have_dev_random" = "xno" \
2696     && test "x$host_win32" = "xno"; then
2697     AC_MSG_WARN([[
2698 ***
2699 *** A system-provided entropy source was not found on this system.
2700 *** Because of this, the System.Security.Cryptography random number generator
2701 *** will throw a NotImplemented exception.
2702 ***
2703 *** If you are seeing this message, and you know your system DOES have an
2704 *** entropy collection in place, please contact <crichton@gimp.org> and
2705 *** provide information about the system and how to access the random device.
2706 ***
2707 *** Otherwise you can install either egd or prngd and set the environment
2708 *** variable MONO_EGD_SOCKET to point to the daemon's socket to use that.
2709 ***]])
2710 fi
2711
2712 AC_ARG_ENABLE(bcl-opt, [  --disable-bcl-opt     BCL is compiled with no optimizations (allows accurate BCL debugging)], test_bcl_opt=$enableval, test_bcl_opt=yes)
2713
2714 AC_MSG_CHECKING([if big-arrays are to be enabled])
2715 AC_ARG_ENABLE(big-arrays,  [  --enable-big-arrays       Enable the allocation and indexing of arrays greater than Int32.MaxValue], enable_big_arrays=$enableval, enable_big_arrays=no)
2716 if test "x$enable_big_arrays" = "xyes" ; then
2717     if  test "x$ac_cv_sizeof_void_p" = "x8"; then
2718         AC_DEFINE(MONO_BIG_ARRAYS,1,[Enable the allocation and indexing of arrays greater than Int32.MaxValue])
2719     else
2720         AC_MSG_ERROR([The allocation and indexing of arrays greater than Int32.MaxValue is not supported on this platform.])
2721     fi
2722 fi
2723 AC_MSG_RESULT($enable_big_arrays)
2724
2725 dnl **************
2726 dnl *** DTRACE ***
2727 dnl **************
2728
2729 AC_ARG_ENABLE(dtrace,[  --enable-dtrace Enable DTrace probes], enable_dtrace=$enableval, enable_dtrace=$has_dtrace)
2730
2731 if test "x$enable_dtrace" = "xyes"; then
2732    if test "x$has_dtrace" = "xno"; then
2733           AC_MSG_ERROR([DTrace probes are not supported on this platform.])
2734    fi
2735    AC_PATH_PROG(DTRACE, [dtrace], [no], [$PATH:/usr/sbin])
2736    if test "x$DTRACE" = "xno"; then
2737           AC_MSG_RESULT([dtrace utility not found, dtrace support disabled.])
2738           enable_dtrace=no
2739    elif ! $DTRACE -h -s $srcdir/data/mono.d > /dev/null 2>&1; then
2740           AC_MSG_RESULT([dtrace doesn't support -h option, dtrace support disabled.])
2741           enable_dtrace=no
2742    fi
2743 fi
2744
2745 dtrace_g=no
2746 if test "x$enable_dtrace" = "xyes"; then
2747         AC_DEFINE(ENABLE_DTRACE, 1, [Enable DTrace probes])
2748         DTRACEFLAGS=
2749         if test "x$ac_cv_sizeof_void_p" = "x8"; then
2750                 case "$host" in
2751                         powerpc-*-darwin*)
2752                         DTRACEFLAGS="-arch ppc64"
2753                         ;;
2754                         i*86-*-darwin*)
2755                         DTRACEFLAGS="-arch x86_64"
2756                         ;;
2757                         *)
2758                         DTRACEFLAGS=-64
2759                         ;;
2760                 esac
2761         else
2762                 case "$host" in
2763                         powerpc-*-darwin*)
2764                         DTRACEFLAGS="-arch ppc"
2765                         ;;
2766                         i*86-*-darwin*)
2767                         DTRACEFLAGS="-arch i386"
2768                         ;;
2769                         *)
2770                         DTRACEFLAGS=-32
2771                         ;;
2772                 esac
2773         fi
2774         AC_SUBST(DTRACEFLAGS)
2775         case "$host" in
2776                 *-*-solaris*)
2777                 dtrace_g=yes
2778                 ;;
2779         esac
2780         AC_CHECK_HEADERS([sys/sdt.h])
2781 fi
2782 AM_CONDITIONAL(ENABLE_DTRACE, [test x$enable_dtrace = xyes])
2783 AM_CONDITIONAL(DTRACE_G_REQUIRED, [test x$dtrace_g = xyes])
2784
2785 dnl **************
2786 dnl ***  NaCl  ***
2787 dnl **************
2788
2789 AC_ARG_ENABLE(nacl_codegen, [  --enable-nacl-codegen      Enable Native Client code generation], enable_nacl_codegen=$enableval, enable_nacl_codegen=no)
2790 AC_ARG_ENABLE(nacl_gc, [  --enable-nacl-gc           Enable Native Client garbage collection], enable_nacl_gc=$enableval, enable_nacl_gc=no)
2791
2792 AM_CONDITIONAL(NACL_CODEGEN, test x$enable_nacl_codegen != xno)
2793
2794 dnl
2795 dnl Hack to use system mono for operations in build/install not allowed in NaCl.
2796 dnl
2797 nacl_self_host=""
2798 if test "x$ac_cv_header_nacl_nacl_dyncode_h" = "xyes"; then
2799    nacl_self_host="nacl_self_host"
2800 fi
2801 AC_SUBST(nacl_self_host)
2802
2803 if test "x$enable_nacl_codegen" = "xyes"; then
2804    MONO_NACL_ALIGN_MASK_OFF=1
2805    AC_DEFINE(TARGET_NACL, 1, [...])
2806    AC_DEFINE(__native_client_codegen__, 1, [...])
2807 fi
2808 if test "x$enable_nacl_gc" = "xyes"; then
2809    if test "x$TARGET" = "xAMD64" -o "x$TARGET" = "xX86"; then
2810       INSTRUMENT_CFLAG="-finstrument-for-thread-suspension"
2811    else
2812       # Not yet implemented
2813       INSTRUMENT_CFLAG=""
2814    fi
2815    CPPFLAGS="$CPPFLAGS $INSTRUMENT_CFLAG -D__native_client_gc__"
2816 fi
2817 AC_SUBST(MONO_NACL_ALIGN_MASK_OFF)
2818
2819 dnl **************************
2820 dnl *** AOT cross offsets  ***
2821 dnl **************************
2822
2823 AC_ARG_WITH(cross-offsets, [  --with-cross-offsets=<offsets file path>    Explicit AOT cross offsets file],
2824     AC_DEFINE_UNQUOTED(MONO_OFFSETS_FILE, "$withval", [AOT cross offsets file]))
2825
2826 dnl **************
2827 dnl ***  LLVM  ***
2828 dnl **************
2829
2830 AC_ARG_ENABLE(llvm,[  --enable-llvm     Enable the LLVM back-end], enable_llvm=$enableval, enable_llvm=default)
2831 AC_ARG_ENABLE(loadedllvm,[  --enable-loadedllvm Load the LLVM back-end dynamically], enable_llvm=$enableval && enable_loadedllvm=$enableval, enable_loadedllvm=no)
2832 AC_ARG_ENABLE(llvm-version-check,[  --enable-llvm-version-check Check that the LLVM matches the version expected by mono], enable_llvm_version_check=$enableval, enable_llvm_version_check=no)
2833 AC_ARG_ENABLE(llvm-runtime,[  --enable-llvm-runtime     Enable runtime support for llvmonly code], enable_llvm_runtime=$enableval, enable_llvm_runtime=no)
2834
2835 AC_ARG_WITH(llvm, [  --with-llvm=<llvm prefix>    Enable the LLVM back-end], enable_llvm=yes,)
2836
2837 if test "x$enable_llvm" = "xdefault"; then
2838    enable_llvm=$enable_llvm_default
2839 fi
2840
2841 if test "x$enable_llvm" = "xyes"; then
2842    if test "x$with_llvm" != "x"; then
2843           LLVM_CONFIG=$with_llvm/bin/llvm-config
2844           if test x$host_win32 = xyes; then
2845                 LLVM_CONFIG=$LLVM_CONFIG.exe
2846           fi
2847           if test ! -x $LLVM_CONFIG; then
2848                  AC_MSG_ERROR([LLVM executable $LLVM_CONFIG not found.])
2849       fi
2850    else
2851       AC_PATH_PROG(LLVM_CONFIG, llvm-config, no)
2852       if test "x$LLVM_CONFIG" = "xno"; then
2853              AC_MSG_ERROR([llvm-config not found.])
2854       fi
2855    fi
2856
2857    llvm_codegen="x86codegen"
2858    case "$target" in
2859    arm*)
2860                 llvm_codegen="armcodegen"
2861                 ;;
2862    esac
2863
2864    if test "x$host_win32" = "xno"; then
2865
2866    # Should be something like '2.6' or '2.7svn'
2867    llvm_version=`$LLVM_CONFIG --version`
2868    llvm_api_version=`$LLVM_CONFIG --mono-api-version 2>/dev/null`
2869    AC_MSG_CHECKING(LLVM version)
2870    AC_MSG_RESULT($llvm_version $llvm_api_version)
2871    if echo $llvm_version | grep -q 'mono'; then
2872           if test "x$enable_llvm_version_check" = "xyes"; then
2873                  if test "$llvm_version" != "$expected_llvm_version"; then
2874                         AC_MSG_ERROR([Expected llvm version $expected_llvm_version, but llvm-config --version returned $llvm_version"])
2875                  fi
2876           fi
2877    else
2878           AC_MSG_ERROR([Compiling with stock LLVM is not supported, please use the Mono LLVM repo at https://github.com/mono/llvm, with the GIT branch which matches this version of mono, i.e. 'mono-2-10' for Mono 2.10.])
2879    fi
2880
2881    # The output of --cflags seems to include optimizations flags too
2882    if test $llvm_api_version -gt 100; then
2883           # The --cflags argument includes all kinds of warnings -pendantic etc.
2884           LLVM_CFLAGS="-I$with_llvm/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
2885           LLVM_CXXFLAGS="-I$with_llvm/include -std=c++11 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
2886    else
2887           LLVM_CFLAGS=`$LLVM_CONFIG --cflags | sed -e 's/-O2//g' | sed -e 's/-O0//g' | sed -e 's/-fomit-frame-pointer//g' | sed -e 's/-fPIC//g'`
2888       LLVM_CXXFLAGS=`$LLVM_CONFIG --cxxflags | sed -e 's/-O2//g' | sed -e 's/-O0//g' | sed -e 's/-fomit-frame-pointer//g' | sed -e 's/-fPIC//g'`
2889    fi
2890    # LLVM is compiled with -fno-rtti, so we need this too, since our classes inherit
2891    # from LLVM classes.
2892    LLVM_CXXFLAGS="$LLVM_CXXFLAGS -fno-rtti -fexceptions"
2893    LLVM_LDFLAGS=`$LLVM_CONFIG --ldflags`
2894    # This might include empty lines
2895    LLVM_SYSTEM_LIBS=`$LLVM_CONFIG --system-libs 2>/dev/null | grep -- -`
2896    llvm_jit_supported=yes
2897    llvm_jit_libs="jit mcjit $llvm_codegen"
2898    if test "x$host" != "x$target"; then
2899       # No need for jit libs
2900           llvm_jit_supported=no
2901       llvm_jit_libs=""
2902    elif test $llvm_api_version -gt 100; then
2903       llvm_jit_libs="orcjit $llvm_codegen"
2904    fi
2905    LLVM_LIBS=`$LLVM_CONFIG --libs analysis core bitwriter $llvm_jit_libs`
2906    if test "x$LLVM_LIBS" = "x"; then
2907           echo "$LLVM_CONFIG --libs failed."
2908           exit 1
2909    fi
2910    LLVM_LIBS="$LLVM_LIBS $LLVM_LDFLAGS $LLVM_SYSTEM_LIBS"
2911    # The c++ standard library used by llvm doesn't show up in $LLVM_SYSTEM_LIBS so add it manually
2912    if echo $LLVM_CXXFLAGS | grep -q -- '-stdlib=libc++'; then
2913       LLVM_LIBS="$LLVM_LIBS -lc++"
2914    else
2915       LLVM_LIBS="$LLVM_LIBS -lstdc++"
2916    fi
2917
2918    expected_llvm_version="3.4svn-mono-mono/e656cac"
2919
2920    else
2921        LLVM_CFLAGS="-I$with_llvm/include -DNDEBUG -D__NO_CTYPE_INLINE -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
2922        LLVM_CXXFLAGS="$LLVM_CFLAGS -std=gnu++11 -fvisibility-inlines-hidden -fno-rtti -Woverloaded-virtual -Wcast-qual"
2923        LLVM_LDFLAGS="-L$with_llvm/lib"
2924        LLVM_SYSTEM_LIBS="-lshell32 -lpsapi -limagehlp -ldbghelp -lm"
2925        LLVM_LIBS="-lLLVMLTO -lLLVMObjCARCOpts -lLLVMLinker -lLLVMipo -lLLVMVectorize -lLLVMBitWriter \
2926          -lLLVMARMDisassembler -lLLVMARMCodeGen -lLLVMARMAsmParser -lLLVMARMDesc -lLLVMARMInfo \
2927          -lLLVMARMAsmPrinter -lLLVMTableGen -lLLVMDebugInfo -lLLVMOption -lLLVMX86Disassembler \
2928          -lLLVMX86AsmParser -lLLVMX86CodeGen -lLLVMSelectionDAG -lLLVMAsmPrinter -lLLVMX86Desc \
2929          -lLLVMMCDisassembler -lLLVMX86Info -lLLVMX86AsmPrinter -lLLVMX86Utils -lLLVMJIT \
2930          -lLLVMAnalysis -lLLVMTarget \
2931          -lLLVMIRReader -lLLVMAsmParser -lLLVMLineEditor -lLLVMMCAnalysis -lLLVMInstrumentation \
2932          -lLLVMInterpreter -lLLVMCodeGen -lLLVMScalarOpts -lLLVMInstCombine -lLLVMTransformUtils \
2933          -lLLVMipa -lLLVMAnalysis -lLLVMProfileData -lLLVMMCJIT -lLLVMTarget -lLLVMRuntimeDyld \
2934          -lLLVMObject -lLLVMMCParser -lLLVMBitReader -lLLVMExecutionEngine -lLLVMMC -lLLVMCore \
2935          -lLLVMSupport -lstdc++"
2936        LLVM_LIBS="$LLVM_LIBS $LLVM_SYSTEM_LIBS"
2937
2938        llvm_config_path=$with_llvm/include/llvm/Config/llvm-config.h
2939        llvm_api_version=`awk '/MONO_API_VERSION/ { print $3 }' $llvm_config_path`
2940    fi
2941
2942    if test "x$llvm_api_version" = "x"; then
2943           LLVM_CFLAGS="$LLVM_CFLAGS -DLLVM_API_VERSION=0"
2944           LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_API_VERSION=0"
2945    else
2946           LLVM_CFLAGS="$LLVM_CFLAGS -DLLVM_API_VERSION=$llvm_api_version"
2947           LLVM_CXXFLAGS="$LLVM_CXXFLAGS -DLLVM_API_VERSION=$llvm_api_version"
2948    fi
2949
2950    AC_DEFINE_UNQUOTED(LLVM_VERSION, "$llvm_version", [Full version of LLVM libraties])
2951
2952    AC_SUBST(LLVM_CFLAGS)
2953    AC_SUBST(LLVM_CXXFLAGS)
2954    AC_SUBST(LLVM_LIBS)
2955    AC_SUBST(LLVM_LDFLAGS)
2956    AC_DEFINE(ENABLE_LLVM, 1, [Enable the LLVM back end])
2957 fi
2958
2959 AM_CONDITIONAL(ENABLE_LLVM, [test x$enable_llvm = xyes])
2960 if test "x$enable_loadedllvm" = "xyes"; then
2961    AC_DEFINE(MONO_LLVM_LOADED, 1, [The LLVM back end is dynamically loaded])
2962 fi
2963 AM_CONDITIONAL(LOADED_LLVM, [test x$enable_loadedllvm = xyes])
2964
2965 if test "x$enable_llvm" = "xyes"; then
2966    enable_llvm_runtime=yes
2967 fi
2968 if test "x$enable_llvm_runtime" = "xyes"; then
2969    AC_DEFINE(ENABLE_LLVM_RUNTIME, 1, [Runtime support code for llvm enabled])
2970 fi
2971 AM_CONDITIONAL(ENABLE_LLVM_RUNTIME, [test x$enable_llvm_runtime = xyes])
2972
2973 TARGET="unknown"
2974 ACCESS_UNALIGNED="yes"
2975
2976 LIBC="libc.so.6"
2977 INTL="libc.so.6"
2978 SQLITE="libsqlite.so.0"
2979 SQLITE3="libsqlite3.so.0"
2980 X11="libX11.so"
2981 GDKX11="libgdk-x11-2.0.so.0"
2982 GTKX11="libgtk-x11-2.0.so.0"
2983 XINERAMA="libXinerama.so.1"
2984
2985 sizeof_register="SIZEOF_VOID_P"
2986
2987 jit_wanted=true
2988 boehm_supported=true
2989 BTLS_SUPPORTED=no
2990 BTLS_PLATFORM=
2991 case "$host" in
2992         mips*)
2993                 TARGET=MIPS;
2994                 arch_target=mips;
2995                 with_tls=pthread;
2996                 ACCESS_UNALIGNED="no"
2997
2998                 AC_MSG_CHECKING(for mips n32)
2999                 AC_TRY_COMPILE([],[
3000                 #if _MIPS_SIM != _ABIN32
3001                 #error Not mips n32
3002                 #endif
3003                 return 0;
3004                 ],[
3005                 AC_MSG_RESULT(yes)
3006                 sizeof_register=8
3007                 ],[
3008                 AC_MSG_RESULT(no)
3009                 ])
3010                 ;;
3011         i*86-*-*)
3012                 TARGET=X86;
3013                 arch_target=x86;
3014                 case $host_os in
3015                   solaris*)
3016                         LIBC="libc.so"
3017                         INTL="libintl.so"
3018                         if test "x$ac_cv_sizeof_void_p" = "x8"; then
3019                                 TARGET=AMD64
3020                                 arch_target=amd64
3021                         fi
3022
3023                         # On solaris 10 x86, gcc prints a warning saying 'visibility attribute not supported on this configuration; ignored', but linking fails. A test case:
3024                         # int astruct __attribute__ ((visibility ("hidden")));
3025                         # void foo ()
3026                         # {
3027                         #       void *p = &astruct;
3028                         # }
3029                         # gcc -fPIC --shared -o libfoo.so foo.c
3030                         # yields:
3031                         # foo.c:6: warning: visibility attribute not supported in this configuration; ignored
3032                         # ld: fatal: relocation error: R_386_GOTOFF: file /var/tmp//ccxYR96k.o: symbol astruct: relocation must bind locally
3033                         have_visibility_hidden=no
3034                         ;;
3035                   mingw*|cygwin*)
3036                         have_visibility_hidden=no
3037                         ;;
3038                   haiku*)
3039                         LIBC=libroot.so
3040                         ;;
3041                   linux*)
3042                         AOT_SUPPORTED="yes"
3043                         BTLS_SUPPORTED=yes
3044                         BTLS_PLATFORM=i386
3045                         AC_CHECK_HEADER(stdalign.h,[],[BTLS_SUPPORTED=no])
3046                         ;;
3047                   darwin*)
3048                         AOT_SUPPORTED="yes"
3049                         BTLS_SUPPORTED=yes
3050                         BTLS_PLATFORM=i386
3051                         ;;
3052                   openbsd*|freebsd*|kfreebsd-gnu*)
3053                         ;;
3054                 esac
3055                 ;;
3056         x86_64-*-* | amd64-*-*)
3057                 TARGET=AMD64;
3058                 arch_target=amd64;
3059                 if test "x$ac_cv_sizeof_void_p" = "x4"; then
3060                         AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
3061                         sizeof_register=8
3062                 fi
3063                 case $host_os in
3064                   linux*)
3065                         AOT_SUPPORTED="yes"
3066                         BTLS_SUPPORTED=yes
3067                         BTLS_PLATFORM=x86_64
3068                         AC_CHECK_HEADER(stdalign.h,[],[BTLS_SUPPORTED=no])
3069                         ;;
3070                   darwin*)
3071                         AOT_SUPPORTED="yes"
3072                         BTLS_SUPPORTED=yes
3073                         BTLS_PLATFORM=x86_64
3074                         boehm_supported=false
3075                         ;;
3076                   openbsd*|freebsd*|kfreebsd-gnu*)
3077                         ;;
3078                   mingw*)
3079                         ;;
3080                 esac
3081                 case "$host" in
3082                         x86_64-*-nacl*)
3083                                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
3084                                 sizeof_register=8
3085                                 ;;
3086                 esac
3087                 ;;
3088         ia64-*-*)
3089                 TARGET=IA64
3090                 arch_target=ia64
3091                 ACCESS_UNALIGNED="no"
3092                 LIBC="libc.so.6.1"
3093                 INTL="libc.so.6.1"
3094                 AC_CHECK_LIB(unwind, _U_dyn_register, [], [AC_MSG_ERROR(library libunwind not found)])
3095                 libmono_ldflags="-lunwind"
3096                 ;;
3097         sparc*-*-*)
3098                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
3099                    TARGET=SPARC64
3100                 else
3101                         TARGET=SPARC
3102                 fi
3103                 arch_target=sparc;
3104                 ACCESS_UNALIGNED="no"
3105                 case $host_os in
3106                   linux*) ;;
3107                   *)
3108                         LIBC="libc.so"
3109                         INTL="libintl.so"
3110                 esac
3111                 if test x"$GCC" = xyes; then
3112                         # We don't support v8 cpus
3113                         CFLAGS="$CFLAGS -Wno-cast-align -mcpu=v9"
3114                 fi
3115                 if test x"$AR" = xfalse; then
3116                         AC_MSG_ERROR([The required utility 'ar' is not found in your PATH. Usually it can be found in /usr/ccs/bin.])
3117                 fi
3118                 ;;
3119         *-mingw*|*-*-cygwin*)
3120                 # When this is enabled, it leads to very strange crashes at runtime (gcc-3.4.4)
3121                 have_visibility_hidden=no
3122                 INTL="intl"
3123                 ;;
3124         macppc-*-openbsd* | powerpc*-*-linux* | powerpc-*-openbsd* | \
3125         powerpc-*-sysv* | powerpc-*-darwin* | powerpc-*-netbsd* | powerpc-*-freebsd* )
3126                 if test "x$ac_cv_sizeof_void_p" = "x8"; then
3127                         TARGET=POWERPC64;
3128                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__ -D__mono_ppc64__"
3129                         CFLAGS="$CFLAGS -mminimal-toc"
3130                 else
3131                         TARGET=POWERPC;
3132                         CPPFLAGS="$CPPFLAGS -D__mono_ppc__"
3133                 fi
3134                 arch_target=ppc;
3135                 case $host_os in
3136                   linux*|darwin*)
3137                         ;;
3138                 esac
3139                 ;;
3140         armv7k-*-darwin*)
3141                 TARGET=ARM;
3142                 TARGET_SYS=WATCHOS
3143                 arch_target=arm;
3144                 arm_fpu=VFP_HARD
3145                 ACCESS_UNALIGNED="no"
3146                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3147                 ;;
3148
3149         arm*-darwin*)
3150                 TARGET=ARM;
3151                 arch_target=arm;
3152                 ACCESS_UNALIGNED="no"
3153                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3154                 ;;
3155         arm*-linux*)
3156                 TARGET=ARM;
3157                 arch_target=arm;
3158                 ACCESS_UNALIGNED="no"
3159                 AOT_SUPPORTED="yes"
3160                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3161                 ;;
3162         arm*-netbsd*-eabi*)
3163                 TARGET=ARM;
3164                 arch_target=arm;
3165                 ACCESS_UNALIGNED="no"
3166                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3167                 ;;
3168 # TODO: make proper support for NaCl host.
3169 #        arm*-*nacl)
3170 #               TARGET=ARM;
3171 #               arch_target=arm;
3172 #               ACCESS_UNALIGNED="no"
3173 #               AOT_SUPPORTED="no"
3174 #               ;;
3175         aarch64-*)
3176                 # https://lkml.org/lkml/2012/7/15/133
3177                 TARGET=ARM64
3178                 arch_target=arm64
3179                 boehm_supported=false
3180                 AOT_SUPPORTED="yes"
3181                 ;;
3182         s390x-*-linux*)
3183                 TARGET=S390X;
3184                 arch_target=s390x;
3185                 ACCESS_UNALIGNED="yes"
3186                 CFLAGS="$CFLAGS -mbackchain -D__USE_STRING_INLINES"
3187                 ;;
3188 esac
3189
3190 HOST=$TARGET
3191
3192 if test "x$host" != "x$target"; then
3193    AC_DEFINE(MONO_CROSS_COMPILE,1,[The runtime is compiled for cross-compiling mode])
3194    enable_mcs_build=no
3195    BTLS_SUPPORTED=no
3196    case "$target" in
3197    arm*-darwin*)
3198                 TARGET=ARM;
3199                 arch_target=arm;
3200                 ACCESS_UNALIGNED="no"
3201                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3202                 # Can't use tls, since it depends on the runtime detection of tls offsets
3203                 # in mono-compiler.h
3204                 with_tls=pthread
3205                 case "$target" in
3206                 armv7k-*)
3207                         arm_fpu=VFP_HARD
3208                         AC_DEFINE(TARGET_WATCHOS, 1, [...])
3209                         ;;
3210                 esac
3211                 ;;
3212    powerpc64-ps3-linux-gnu)
3213                 TARGET=POWERPC64
3214                 arch_target=powerpc64
3215                 AC_DEFINE(TARGET_PS3, 1, [...])
3216                 # It would be better to just use TARGET_POWERPC64, but lots of code already
3217                 # uses this define
3218                 AC_DEFINE(__mono_ppc64__, 1, [...])
3219                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
3220                 sizeof_register=8
3221                 target_byte_order=G_BIG_ENDIAN
3222                 ;;
3223    powerpc64-xbox360-linux-gnu)
3224                 TARGET=POWERPC64
3225                 arch_target=powerpc64
3226                 AC_DEFINE(TARGET_XBOX360, 1, [...])
3227                 # It would be better to just use TARGET_POWERPC64, but lots of code already
3228                 # uses this define
3229                 sizeof_register=8
3230                 target_byte_order=G_BIG_ENDIAN
3231                 ;;
3232    x86_64-*-nacl)
3233                 TARGET=AMD64
3234                 arch_target=amd64
3235                 AC_DEFINE(TARGET_AMD64, 1, [...])
3236                 AC_DEFINE(__mono_ilp32__, 1, [64 bit mode with 4 byte longs and pointers])
3237                 sizeof_register=8
3238                 ;;
3239 # TODO: make proper support for NaCl target.
3240 #   arm*-*nacl)
3241 #               TARGET=ARM
3242 #               arch_target=arm
3243 #               AC_DEFINE(TARGET_ARM, 1, [...])
3244 #               ACCESS_UNALIGNED="no"
3245 #               sizeof_register=4
3246 #               CPPFLAGS="$CPPFLAGS \
3247 #                    -D__ARM_EABI__ \
3248 #                    -D__arm__ \
3249 #                    -D__portable_native_client__ \
3250 #                    -Dtimezone=_timezone \
3251 #                    -DDISABLE_SOCKETS \
3252 #                    -DDISABLE_ATTACH \
3253 #                    -DUSE_NEWLIB"
3254                 # Can't use tls, since it depends on the runtime detection of tls offsets
3255                 # in mono-compiler.h
3256 #               with_tls=pthread
3257 #               ;;
3258    i686-*-nacl)
3259                 TARGET=X86
3260                 arch_target=x86
3261                 AC_DEFINE(TARGET_X86, 1, [...])
3262                 sizeof_register=4
3263                 ;;
3264    arm*-linux-*)
3265                 TARGET=ARM;
3266                 arch_target=arm;
3267                 AC_DEFINE(TARGET_ARM, 1, [...])
3268                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3269                 ACCESS_UNALIGNED="no"
3270                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3271                 # Can't use tls, since it depends on the runtime detection of tls offsets
3272                 # in mono-compiler.h
3273                 with_tls=pthread
3274                 target_mach=no
3275                 case "$target" in
3276                 armv7l-unknown-linux-gnueabi*)
3277                         # TEGRA
3278                         CPPFLAGS="$CPPFLAGS"
3279                         ;;
3280                 armv5-*-linux-androideabi*)
3281                         CPPFLAGS="$CPPFLAGS"
3282                         ;;
3283                 esac
3284                 ;;
3285    arm*-netbsd*-eabi*)
3286                 TARGET=ARM;
3287                 arch_target=arm;
3288                 AC_DEFINE(TARGET_ARM, 1, [...])
3289                 ACCESS_UNALIGNED="no"
3290                 CPPFLAGS="$CPPFLAGS -D__ARM_EABI__"
3291                 # Can't use tls, since it depends on the runtime detection of tls offsets
3292                 # in mono-compiler.h
3293                 with_tls=pthread
3294                 target_mach=no
3295                 ;;
3296    i686*-linux-*)
3297                 TARGET=X86;
3298                 arch_target=x86;
3299                 AC_DEFINE(TARGET_X86, 1, [...])
3300                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3301                 CPPFLAGS="$CPPFLAGS"
3302                 # Can't use tls, since it depends on the runtime detection of tls offsets
3303                 # in mono-compiler.h
3304                 with_tls=pthread
3305                 target_mach=no
3306                 ;;
3307    x86_64*-linux-*)
3308                 TARGET=AMD64;
3309                 arch_target=amd64;
3310                 AC_DEFINE(TARGET_AMD64, 1, [...])
3311                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3312                 CPPFLAGS="$CPPFLAGS"
3313                 # Can't use tls, since it depends on the runtime detection of tls offsets
3314                 # in mono-compiler.h
3315                 with_tls=pthread
3316                 target_mach=no
3317                 ;;
3318    x86_64-ps4-freebsd)
3319                 TARGET=AMD64;
3320                 arch_target=amd64;
3321                 AC_DEFINE(TARGET_AMD64, 1, [...])
3322                 AC_DEFINE(TARGET_PS4, 1, [...])
3323                 AC_DEFINE(DISABLE_HW_TRAPS, 1, [...])
3324                 CPPFLAGS="$CPPFLAGS"
3325                 # Can't use tls, since it depends on the runtime detection of tls offsets
3326                 # in mono-compiler.h
3327                 with_tls=pthread
3328                 target_mach=no
3329                 target_win32=no
3330                 ;;
3331    aarch64*-linux-*)
3332                 TARGET=ARM64;
3333                 arch_target=arm64;
3334                 AC_DEFINE(TARGET_ARM64, 1, [...])
3335                 AC_DEFINE(TARGET_ANDROID, 1, [...])
3336                 CPPFLAGS="$CPPFLAGS"
3337                 # Can't use tls, since it depends on the runtime detection of tls offsets
3338                 # in mono-compiler.h
3339                 with_tls=pthread
3340                 target_mach=no
3341                 ;;
3342         aarch64-*)
3343                 TARGET=ARM64
3344                 ;;
3345         *)
3346                 AC_MSG_ERROR([Cross compiling is not supported for target $target])
3347         esac
3348 fi
3349
3350 case "$TARGET" in
3351 X86)
3352         AC_DEFINE(TARGET_X86, 1, [...])
3353         ;;
3354 AMD64)
3355         AC_DEFINE(TARGET_AMD64, 1, [...])
3356         ;;
3357 ARM)
3358         AC_DEFINE(TARGET_ARM, 1, [...])
3359         ;;
3360 ARM64)
3361         AC_DEFINE(TARGET_ARM64, 1, [...])
3362         ;;
3363 POWERPC)
3364         AC_DEFINE(TARGET_POWERPC, 1, [...])
3365         ;;
3366 POWERPC64)
3367         AC_DEFINE(TARGET_POWERPC, 1, [...])
3368         AC_DEFINE(TARGET_POWERPC64, 1, [...])
3369         ;;
3370 S390X)
3371         AC_DEFINE(TARGET_S390X, 1, [...])
3372         ;;
3373 MIPS)
3374         AC_DEFINE(TARGET_MIPS, 1, [...])
3375         ;;
3376 IA64)
3377         AC_DEFINE(TARGET_IA64, 1, [...])
3378         ;;
3379 SPARC)
3380         AC_DEFINE(TARGET_SPARC, 1, [...])
3381         ;;
3382 SPARC64)
3383         AC_DEFINE(TARGET_SPARC64, 1, [...])
3384         ;;
3385 esac
3386
3387 case "$HOST" in
3388 X86)
3389         AC_DEFINE(HOST_X86, 1, [...])
3390         ;;
3391 AMD64)
3392         AC_DEFINE(HOST_AMD64, 1, [...])
3393         ;;
3394 ARM)
3395         AC_DEFINE(HOST_ARM, 1, [...])
3396         ;;
3397 ARM64)
3398         AC_DEFINE(HOST_ARM64, 1, [...])
3399         ;;
3400 POWERPC)
3401         AC_DEFINE(HOST_POWERPC, 1, [...])
3402         ;;
3403 POWERPC64)
3404         AC_DEFINE(HOST_POWERPC, 1, [...])
3405         AC_DEFINE(HOST_POWERPC64, 1, [...])
3406         ;;
3407 S390X)
3408         AC_DEFINE(HOST_S390X, 1, [...])
3409         ;;
3410 MIPS)
3411         AC_DEFINE(HOST_MIPS, 1, [...])
3412         ;;
3413 IA64)
3414         AC_DEFINE(HOST_IA64, 1, [...])
3415         ;;
3416 SPARC)
3417         AC_DEFINE(HOST_SPARC, 1, [...])
3418         ;;
3419 SPARC64)
3420         AC_DEFINE(HOST_SPARC64, 1, [...])
3421         ;;
3422 esac
3423
3424
3425
3426 dnl *************
3427 dnl *** VTUNE ***
3428 dnl *************
3429
3430 AC_ARG_ENABLE(vtune,[  --enable-vtune   Enable the VTUNE back-end], enable_vtune=$enableval, enable_vtune=no)
3431 AC_ARG_WITH(vtune, [  --with-vtune=<vtune prefix>       Enable jit vtune profiling], enable_vtune=yes,)
3432
3433 AM_CONDITIONAL(HAVE_VTUNE, test x$enable_vtune = xyes)
3434
3435 if test "x$enable_vtune" = "xyes"; then
3436         if test "x$with_vtune" = "x"; then
3437                 VTUNE_PATH=/opt/intel/vtune_amplifier_xe
3438         else
3439                 VTUNE_PATH=$with_vtune
3440         fi
3441         VTUNE_INCLUDE=$VTUNE_PATH/include
3442         case "$TARGET" in
3443         X86)
3444                 VTUNE_LIB=$VTUNE_PATH/lib32
3445                 ;;
3446         AMD64)
3447                 VTUNE_LIB=$VTUNE_PATH/lib64
3448                 ;;
3449         *)
3450                 AC_MSG_ERROR([Unsupported target $TARGET for VTUNE.])
3451                 ;;
3452         esac
3453         if test ! -f $VTUNE_INCLUDE/jitprofiling.h; then
3454                 AC_MSG_ERROR([VTUNE $VTUNE_INCLUDE/jitprofiling.h not found.])
3455         fi
3456         if test ! -f $VTUNE_LIB/libjitprofiling.a; then
3457                 AC_MSG_ERROR([VTUNE $VTUNE_LIB/libjitprofiling.a not found.])
3458         fi
3459
3460         VTUNE_CFLAGS=-I$VTUNE_INCLUDE
3461         VTUNE_LIBS="-L/$VTUNE_LIB/ -ljitprofiling"
3462
3463         AC_SUBST(VTUNE_LIBS)
3464         AC_SUBST(VTUNE_CFLAGS)
3465 fi
3466 dnl Use GCC atomic ops if they work on the target.
3467 if test x$GCC = "xyes"; then
3468         case $TARGET in
3469         X86 | AMD64 | ARM | ARM64 | POWERPC | POWERPC64 | MIPS | S390X | SPARC | SPARC64)
3470                 AC_DEFINE(USE_GCC_ATOMIC_OPS, 1, [...])
3471                 ;;
3472         esac
3473 fi
3474
3475 if test "x$target_mach" = "xyes"; then
3476
3477    if test "x$TARGET_SYS" = "xWATCHOS"; then
3478           AC_DEFINE(TARGET_WATCHOS,1,[The JIT/AOT targets WatchOS])
3479           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_WATCHOS"
3480           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_WATCHOS"
3481           BTLS_SUPPORTED=no
3482    elif test "x$TARGET" = "xARM" -o "x$TARGET" = "xARM64"; then
3483           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
3484           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
3485           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
3486           BTLS_SUPPORTED=no
3487    else
3488        AC_TRY_COMPILE([#include "TargetConditionals.h"],[
3489        #if TARGET_IPHONE_SIMULATOR == 1 || TARGET_OS_IPHONE == 1
3490        #error fail this for ios
3491        #endif
3492        return 0;
3493        ], [
3494                   AC_DEFINE(TARGET_OSX,1,[The JIT/AOT targets OSX])
3495           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_OSX"
3496           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_OSX"
3497        ], [
3498           AC_DEFINE(TARGET_IOS,1,[The JIT/AOT targets iOS])
3499           CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DTARGET_IOS"
3500           CFLAGS_FOR_LIBGC="$CFLAGS_FOR_LIBGC -DTARGET_IOS"
3501           BTLS_SUPPORTED=no
3502        ])
3503         fi
3504    AC_DEFINE(TARGET_MACH,1,[The JIT/AOT targets Apple platforms])
3505 fi
3506
3507 if test "x$sizeof_register" = "x4"; then
3508    AC_DEFINE(SIZEOF_REGISTER,4,[size of machine integer registers])
3509 elif test "x$sizeof_register" = "x8"; then
3510    AC_DEFINE(SIZEOF_REGISTER,8,[size of machine integer registers])
3511 else
3512    AC_DEFINE(SIZEOF_REGISTER,SIZEOF_VOID_P,[size of machine integer registers])
3513 fi
3514
3515 if test "x$target_byte_order" = "xG_BIG_ENDIAN"; then
3516    AC_DEFINE(TARGET_BYTE_ORDER,G_BIG_ENDIAN,[byte order of target])
3517 elif test "x$target_byte_order" = "xG_LITTLE_ENDIAN"; then
3518    AC_DEFINE(TARGET_BYTE_ORDER,G_LITTLE_ENDIAN,[byte order of target])
3519 else
3520    AC_DEFINE(TARGET_BYTE_ORDER,G_BYTE_ORDER,[byte order of target])
3521 fi
3522
3523 if test "x$have_visibility_hidden" = "xyes"; then
3524    AC_DEFINE(HAVE_VISIBILITY_HIDDEN, 1, [Support for the visibility ("hidden") attribute])
3525 fi
3526
3527 if test "x$have_deprecated" = "xyes"; then
3528    AC_DEFINE(HAVE_DEPRECATED, 1, [Support for the deprecated attribute])
3529 fi
3530
3531 AC_ARG_WITH(interpreter, [  --with-interpreter=yes|no       Interpreter, default=no],[buildinterpreter=$with_interpreter],[buildinterpreter=no])
3532 if test "x$buildinterpreter" = "xyes"; then
3533     AC_DEFINE(ENABLE_INTERPRETER, 1, [Enable interpreter in the runtime.])
3534     AC_MSG_NOTICE([Enable interpreter in the runtime.])
3535 fi
3536
3537 AM_CONDITIONAL([ENABLE_INTERPRETER], [test x$buildinterpreter != xno])
3538
3539
3540 dnl
3541 dnl Simple Generational checks (sgen)
3542 dnl
3543 SGEN_DEFINES=
3544 AC_ARG_WITH(sgen,                    [  --with-sgen=yes,no             Extra Generational GC, default=yes],[buildsgen=$with_sgen],[buildsgen=yes])
3545 AC_ARG_WITH(sgen-default-concurrent, [  --with-sgen-default-concurrent=yes,no             Use Concurrent GC, default=no],[],[with_sgen_default_concurrent=no])
3546 if test x$buildsgen = xyes; then
3547    AC_DEFINE(HAVE_MOVING_COLLECTOR, 1, [Moving collector])
3548    SGEN_DEFINES="-DHAVE_SGEN_GC"
3549
3550         conc_gc_msg=""
3551    if test x$with_sgen_default_concurrent != xno; then
3552        AC_DEFINE(HAVE_CONC_GC_AS_DEFAULT, 1, [Defaults to concurrent GC])
3553            conc_gc_msg=" (concurrent by default)"
3554    fi
3555
3556    if test "x$gc_msg" = "x"; then
3557       gc_msg="sgen$conc_gc_msg"
3558    else
3559       gc_msg="sgen$conc_gc_msg and $gc_msg"
3560    fi
3561 fi
3562 AC_SUBST(SGEN_DEFINES)
3563 AM_CONDITIONAL(SUPPORT_SGEN, test x$buildsgen = xyes)
3564
3565 jit_status="Building and using the JIT"
3566
3567 libsuffix=".so"
3568
3569 case "$host" in
3570      *-*-darwin*)
3571         libsuffix=".dylib"
3572         LIBC="libc.dylib"
3573         INTL="libintl.dylib"
3574         SQLITE="libsqlite.0.dylib"
3575         SQLITE3="libsqlite3.0.dylib"
3576         X11="libX11.dylib"
3577         GDKX11="libgdk-x11-2.0.dylib"
3578         GTKX11="libgtk-x11-2.0.dylib"
3579         ;;
3580      *-*-*netbsd*)
3581         LIBC="libc.so"
3582         INTL="libintl.so"
3583         SQLITE="libsqlite.so"
3584         SQLITE3="libsqlite3.so"
3585         ;;
3586      *-*-kfreebsd*-gnu)
3587         LIBC="libc.so.0.1"
3588         INTL="libc.so.0.1"
3589         X11="libX11.so.6"
3590         ;;
3591     *-*-*freebsd*)
3592         LIBC="libc.so.7"
3593         INTL="libintl.so"
3594         SQLITE="libsqlite.so"
3595         SQLITE3="libsqlite3.so"
3596         ;;
3597     *-*-*openbsd*)
3598         LIBC="libc.so"
3599         INTL="libintl.so"
3600         SQLITE="libsqlite.so"
3601         SQLITE3="libsqlite3.so"
3602         ;;
3603     *-*-*linux*)
3604         AC_PATH_X
3605         dlsearch_path=`(libtool --config ; echo eval echo \\$sys_lib_dlsearch_path_spec) | sh`
3606         AC_MSG_CHECKING(for the soname of libX11.so)
3607         for i in $x_libraries $dlsearch_path; do
3608                 for r in 4 5 6; do
3609                         if test -f $i/libX11.so.$r; then
3610                                 X11=libX11.so.$r
3611                                 AC_MSG_RESULT($X11)
3612                         fi
3613                 done
3614         done
3615
3616         if test "x$X11" = "xlibX11.so"; then
3617                 AC_MSG_WARN([Could not find libX11.so. Do you have X.org or XFree86 installed? Assuming libX11.so.6...]);
3618                 X11=libX11.so.6
3619         fi
3620         ;;
3621 esac
3622
3623
3624 AC_SUBST(libsuffix)
3625
3626 AC_ARG_WITH([libgdiplus],
3627         [  --with-libgdiplus=installed|sibling|<path>   Override the libgdiplus used for System.Drawing tests (defaults to installed)],
3628         [], [with_libgdiplus=installed])
3629
3630 # default install location
3631 libgdiplus_install_loc=libgdiplus${libsuffix}
3632 case "$host" in
3633     *-*-*linux*)
3634     libgdiplus_install_loc=libgdiplus${libsuffix}.0
3635     ;;
3636 esac
3637
3638 case $with_libgdiplus in
3639     no|installed)
3640     libgdiplus_loc=
3641     ;;
3642
3643     yes|sibling)
3644     libgdiplus_loc=`cd ../libgdiplus && pwd`/src/libgdiplus.la
3645     ;;
3646
3647     /*) # absolute path, assume it is an install location
3648     libgdiplus_loc=$with_libgdiplus
3649     libgdiplus_install_loc=$with_libgdiplus
3650     ;;
3651
3652     *)
3653     libgdiplus_loc=`pwd`/$with_libgdiplus
3654     ;;
3655 esac
3656 AC_SUBST([libgdiplus_loc])
3657 AC_SUBST([libgdiplus_install_loc])
3658
3659 AC_ARG_ENABLE(icall-symbol-map,[  --enable-icall-symbol-map Generate tables which map icall functions to their C symbols], icall_symbol_map=$enableval, icall_symbol_map=no)
3660 if test "x$icall_symbol_map" = "xyes"; then
3661    AC_DEFINE(ENABLE_ICALL_SYMBOL_MAP, 1, [Icall symbol map enabled])
3662 fi
3663
3664 AC_ARG_ENABLE(icall-export,[  --enable-icall-export Export icall functions], icall_export=$enableval, icall_export=no)
3665 if test "x$icall_export" = "xyes"; then
3666    AC_DEFINE(ENABLE_ICALL_EXPORT, 1, [Icall export enabled])
3667 fi
3668
3669 AC_ARG_ENABLE(icall-tables,[  --disable-icall-tables Disable the runtime lookup of icalls], icall_tables=$enableval, icall_tables=yes)
3670 if test "x$icall_tables" = "xno"; then
3671    AC_DEFINE(DISABLE_ICALL_TABLES, 1, [Icall tables disabled])
3672 fi
3673
3674 if test "x$with_tls" = "x__thread"; then
3675         AC_DEFINE(HAVE_KW_THREAD, 1, [Have __thread keyword])
3676         # Pass the information to libgc
3677         CPPFLAGS="$CPPFLAGS -DUSE_COMPILER_TLS"
3678         AC_MSG_CHECKING(if the tls_model attribute is supported)
3679         AC_TRY_COMPILE([static __thread int foo __attribute__((tls_model("initial-exec")));], [
3680                 ], [
3681                         AC_MSG_RESULT(yes)
3682                         AC_DEFINE(HAVE_TLS_MODEL_ATTR, 1, [tls_model available])
3683                 ], [
3684                         AC_MSG_RESULT(no)
3685         ])
3686 fi
3687
3688 if test ${TARGET} = ARM; then
3689         dnl ******************************************
3690         dnl *** Check to see what FPU is available ***
3691         dnl ******************************************
3692         AC_MSG_CHECKING(which FPU to use)
3693
3694         #
3695         # This is a bit tricky:
3696         #
3697         # if (__ARM_PCS_VFP) {
3698         #       /* mfloat-abi=hard == VFP with hard ABI */
3699         # } elif (!__SOFTFP__) {
3700         #       /* mfloat-abi=softfp == VFP with soft ABI */
3701         # } else {
3702         #       /* mfloat-abi=soft == no VFP */
3703         # }
3704         #
3705         # The exception is iOS (w/ GCC) where none of the above
3706         # are defined (but iOS always uses the 'softfp' ABI).
3707         #
3708         # No support for FPA.
3709         #
3710
3711         fpu=NONE
3712
3713         # iOS GCC always uses the 'softfp' ABI.
3714         if test x"$GCC" = xyes && test x$host_darwin = xyes; then
3715                 fpu=VFP
3716         fi
3717
3718         # Are we using the 'hard' ABI?
3719         if test x$fpu = xNONE; then
3720                 AC_TRY_COMPILE([], [
3721                         #ifndef __ARM_PCS_VFP
3722                         #error "Float ABI is not 'hard'"
3723                         #endif
3724                         return 0;
3725                 ], [
3726                         fpu=VFP_HARD
3727                 ], [
3728                         fpu=NONE
3729                 ])
3730         fi
3731
3732         # No 'hard' ABI. 'soft' or 'softfp'?
3733         if test x$fpu = xNONE; then
3734                 AC_TRY_COMPILE([], [
3735                         #ifdef __SOFTFP__
3736                         #error "Float ABI is not 'softfp'"
3737                         #endif
3738                         return 0;
3739                 ], [
3740                         fpu=VFP
3741                 ], [
3742                         fpu=NONE
3743                 ])
3744         fi
3745
3746         if test x$arm_fpu != x; then
3747            fpu=$arm_fpu
3748         fi
3749
3750         AC_MSG_RESULT($fpu)
3751         CPPFLAGS="$CPPFLAGS -DARM_FPU_$fpu=1"
3752         unset fpu
3753
3754         dnl *********************************************
3755         dnl *** Check which ARM version(s) we can use ***
3756         dnl *********************************************
3757         AC_MSG_CHECKING(which ARM version to use)
3758
3759         AC_TRY_COMPILE([], [
3760                 #if !defined(__ARM_ARCH_5T__) && !defined(__ARM_ARCH_5TE__) && !defined(__ARM_ARCH_5TEJ__)
3761                 #error Not on ARM v5.
3762                 #endif
3763                 return 0;
3764         ], [
3765                 arm_v5=yes
3766
3767                 arm_ver=ARMv5
3768         ], [])
3769
3770         AC_TRY_COMPILE([], [
3771                 #if !defined(__ARM_ARCH_6J__) && !defined(__ARM_ARCH_6ZK__) && !defined(__ARM_ARCH_6K__) && !defined(__ARM_ARCH_6T2__) && !defined(__ARM_ARCH_6M__)
3772                 #error Not on ARM v6.
3773                 #endif
3774                 return 0;
3775         ], [
3776                 arm_v5=yes
3777                 arm_v6=yes
3778
3779                 arm_ver=ARMv6
3780         ], [])
3781
3782         AC_TRY_COMPILE([], [
3783                 #if !defined(__ARM_ARCH_7A__) && !defined(__ARM_ARCH_7R__) && !defined(__ARM_ARCH_7EM__) && !defined(__ARM_ARCH_7M__) && !defined(__ARM_ARCH_7S__)
3784                 #error Not on ARM v7.
3785                 #endif
3786                 return 0;
3787         ], [
3788                 arm_v5=yes
3789                 arm_v6=yes
3790                 arm_v7=yes
3791
3792                 arm_ver=ARMv7
3793         ], [])
3794
3795         AC_MSG_RESULT($arm_ver)
3796
3797         if test x$arm_v5 = xyes; then
3798                 AC_DEFINE(HAVE_ARMV5, 1, [ARM v5])
3799                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV5=1"
3800         fi
3801
3802         if test x$arm_v6 = xyes; then
3803                 AC_DEFINE(HAVE_ARMV6, 1, [ARM v6])
3804                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV6=1"
3805         fi
3806
3807         if test x$arm_v7 = xyes; then
3808                 AC_DEFINE(HAVE_ARMV7, 1, [ARM v7])
3809                 CPPFLAGS_FOR_LIBGC="$CPPFLAGS_FOR_LIBGC -DHAVE_ARMV7=1"
3810         fi
3811 fi
3812
3813 if test ${TARGET} = unknown; then
3814         CPPFLAGS="$CPPFLAGS -DNO_PORT"
3815         AC_MSG_WARN("mono has not been ported to $host: some things may not work.")
3816 fi
3817
3818 if test "x$platform_android" = "xyes"; then
3819         case "x${TARGET}" in
3820         xARM)
3821                 case "x$arm_ver" in
3822                 xARMv5)
3823                         BTLS_SUPPORTED=yes
3824                         BTLS_PLATFORM=android-armv5
3825                         ;;
3826                 xARMv6)
3827                         BTLS_SUPPORTED=yes
3828                         BTLS_PLATFORM=android-armv6
3829                         ;;
3830                 xARMv7)
3831                         BTLS_SUPPORTED=yes
3832                         BTLS_PLATFORM=android-armv7
3833                         ;;
3834                 *)
3835                         BTLS_SUPPORTED=no
3836                         ;;
3837                 esac
3838                 ;;
3839         xARM64)
3840                 BTLS_SUPPORTED=yes
3841                 BTLS_PLATFORM=android-v8a
3842                 ;;
3843         xX86)
3844                 BTLS_SUPPORTED=yes
3845                 BTLS_PLATFORM=android-x86
3846                 ;;
3847         xAMD64)
3848                 BTLS_SUPPORTED=yes
3849                 BTLS_PLATFORM=android-x64
3850                 ;;
3851         *)
3852                 BTLS_SUPPORTED=no
3853                 ;;
3854         esac
3855 fi
3856
3857 if test ${ACCESS_UNALIGNED} = no; then
3858         CPPFLAGS="$CPPFLAGS -DNO_UNALIGNED_ACCESS"
3859 fi
3860
3861 if test x$host_darwin = xyes; then
3862         AC_MSG_CHECKING([for ranlib that supports -no_warning_for_no_symbols option])
3863         AS_IF(
3864                 [$RANLIB -no_warning_for_no_symbols 2>&1 | grep -q "unknown option"],
3865                 [AC_MSG_RESULT([no])],
3866                 [
3867                         # avoid AR calling ranlib, libtool calls it anyway. suppress no symbols warning.
3868                         AR_FLAGS="Scru"
3869                         RANLIB="$RANLIB -no_warning_for_no_symbols"
3870                         AC_MSG_RESULT([yes])
3871                 ]
3872         )
3873 fi
3874
3875 case "x$libgc" in
3876         xincluded)
3877                 # Pass CPPFLAGS to libgc configure
3878                 # We should use a separate variable for this to avoid passing useless and
3879                 # potentially problematic defines to libgc (like -D_FILE_OFFSET_BITS=64)
3880                 # This should be executed late so we pick up the final version of CPPFLAGS
3881                 # The problem with this approach, is that during a reconfigure, the main
3882                 # configure scripts gets invoked with these arguments, so we use separate
3883                 # variables understood by libgc's configure to pass CPPFLAGS and CFLAGS.
3884                 TMP_CPPFLAGS="$CPPFLAGS $CPPFLAGS_FOR_LIBGC"
3885                 if test x$TARGET = xSPARC -o x$TARGET = xSPARC64; then
3886                         TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-D_FILE_OFFSET_BITS=64//g'`
3887                 fi
3888                 # Don't pass -finstrument-for-thread-suspension in,
3889                 # if these are instrumented it will be very bad news
3890                 # (infinite recursion, undefined parking behavior, etc)
3891                 TMP_CPPFLAGS=`echo $TMP_CPPFLAGS | sed -e 's/-finstrument-for-thread-suspension//g'`
3892                 ac_configure_args="$ac_configure_args --disable-embed-check --with-libgc-threads=$libgc_threads $libgc_configure_args \"CPPFLAGS_FOR_LIBGC=$TMP_CPPFLAGS\" \"CFLAGS_FOR_LIBGC=$CFLAGS_FOR_LIBGC\""
3893                 if test "x$support_boehm" = "xyes"; then
3894                         AC_CONFIG_SUBDIRS(libgc)
3895                 fi
3896                 ;;
3897 esac
3898
3899 MALLOC_MEMPOOLS=no
3900 AC_ARG_WITH(malloc_mempools,[  --with-malloc-mempools=yes,no  Use malloc for each single mempool allocation (only for runtime debugging, defaults to no)],[
3901         if test x$with_malloc_mempools = xyes; then
3902                 MALLOC_MEMPOOLS=yes
3903                 AC_DEFINE(USE_MALLOC_FOR_MEMPOOLS,1,[Use malloc for each single mempool allocation])
3904         fi
3905 ])
3906
3907
3908 DISABLE_MCS_DOCS=default
3909 AC_ARG_WITH(mcs_docs,[  --with-mcs-docs=yes,no         If you want to build the documentation under mcs (defaults to yes)],[
3910         if test x$with_mcs_docs != xyes; then
3911                 DISABLE_MCS_DOCS=yes
3912         fi
3913 ])
3914 if test -n "$INSTALL_4_x_TRUE"; then :
3915         DISABLE_MCS_DOCS=yes
3916 fi
3917 if test "x$DISABLE_MCS_DOCS" = "xdefault"; then
3918    DISABLE_MCS_DOCS=$DISABLE_MCS_DOCS_default
3919 fi
3920
3921 AC_ARG_WITH(lazy_gc_thread_creation, [  --with-lazy-gc-thread-creation=yes|no      Enable lazy runtime thread creation, embedding host must do it explicitly (defaults to no)],[
3922         if test x$with_lazy_gc_thread_creation != xno ; then
3923                 AC_DEFINE(LAZY_GC_THREAD_CREATION,1,[Enable lazy gc thread creation by the embedding host.])
3924         fi
3925 ], [with_lazy_gc_thread_creation=no])
3926
3927 AC_ARG_WITH(cooperative_gc, [  --with-cooperative-gc=yes|no      Enable cooperative stop-the-world garbage collection (sgen only) (defaults to no)], [], [with_cooperative_gc=default])
3928
3929 if test x$with_cooperative_gc = xdefault; then
3930         with_cooperative_gc=$with_cooperative_gc_default
3931 fi
3932
3933 if test x$with_cooperative_gc != xno; then
3934         AC_DEFINE(USE_COOP_GC,1,[Enable cooperative stop-the-world garbage collection.])
3935 fi
3936
3937 AM_CONDITIONAL([ENABLE_COOP], [test x$with_cooperative_gc != xno])
3938
3939 AC_ARG_ENABLE(checked_build, [  --enable-checked-build=LIST      To enable checked build (expensive asserts), configure with a comma-separated LIST of checked build modules and then include that same list in the environment variable MONO_CHECK_MODE at runtime. Recognized checked build modules: all, gc, metadata, thread],[
3940
3941         if test x$enable_checked_build != x ; then
3942                 AC_DEFINE(ENABLE_CHECKED_BUILD,1,[Enable checked build])
3943         fi
3944         for feature in `echo "$enable_checked_build" | sed -e "s/,/ /g"`; do
3945                 eval "mono_checked_build_test_enable_$feature='yes'"
3946         done
3947
3948         if test "x$mono_checked_build_test_enable_all" = "xyes"; then
3949                 eval "mono_checked_build_test_enable_gc='yes'"
3950                 eval "mono_checked_build_test_enable_metadata='yes'"
3951                 eval "mono_checked_build_test_enable_thread='yes'"
3952         fi
3953
3954         if test "x$mono_checked_build_test_enable_gc" = "xyes"; then
3955                 AC_DEFINE(ENABLE_CHECKED_BUILD_GC, 1, [Enable GC checked build])
3956         fi
3957
3958         if test "x$mono_checked_build_test_enable_metadata" = "xyes"; then
3959                 AC_DEFINE(ENABLE_CHECKED_BUILD_METADATA, 1, [Enable metadata checked build])
3960         fi
3961
3962         if test "x$mono_checked_build_test_enable_thread" = "xyes"; then
3963                 AC_DEFINE(ENABLE_CHECKED_BUILD_THREAD, 1, [Enable thread checked build])
3964         fi
3965
3966 ], [])
3967
3968 AC_CHECK_HEADER([malloc.h],
3969                 [AC_DEFINE([HAVE_USR_INCLUDE_MALLOC_H], [1],
3970                         [Define to 1 if you have /usr/include/malloc.h.])],,)
3971
3972 if test x"$GCC" = xyes; then
3973         # Implicit function declarations are not 64 bit safe
3974         # Do this late, since this causes lots of configure tests to fail
3975         CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
3976         # jay has a lot of implicit declarations
3977         JAY_CFLAGS="-Wno-implicit-function-declaration"
3978 fi
3979
3980 # When --disable-shared is used, libtool transforms libmono-2.0.la into libmono-2.0.so
3981 # instead of libmono-static.a
3982 if test "x$enable_shared" = "xno" -a "x$enable_executables" = "xyes"; then
3983    LIBMONO_LA=libmini-static.la
3984 else
3985    if test x$buildsgen = xyes; then
3986       LIBMONO_LA=libmonosgen-$API_VER.la
3987    else
3988       LIBMONO_LA=libmonoboehm-$API_VER.la
3989    fi
3990 fi
3991 AC_SUBST(LIBMONO_LA)
3992
3993 dnl **************
3994 dnl ***  Btls  ***
3995 dnl **************
3996
3997 AC_ARG_ENABLE(btls, [  --disable-btls             Disable the BoringTls provider], enable_btls=$enableval, enable_btls=$BTLS_SUPPORTED)
3998 AC_ARG_WITH(btls_android_ndk, [  --with-btls-android-ndk        Android NDK for BoringTls])
3999
4000 AC_ARG_ENABLE(dynamic-btls, [ --enable-dynamic-btls Place the BTLS provider into a separate shared library/archive.], enable_dynamic_btls=$enableval, enable_dynamic_btls=no)
4001
4002 AM_CONDITIONAL(BTLS, test x$enable_btls = xyes)
4003
4004 btls_android=no
4005 if test "x$enable_btls" = "xyes"; then
4006         AC_PATH_PROG(CMAKE, [cmake], [no], [$PATH:/Applications/CMake.app/Contents/bin:/usr/local/bin])
4007         if test "x$CMAKE" = "xno"; then
4008                 AC_MSG_ERROR("cmake not found")
4009         fi
4010
4011         BTLS_ROOT=`cd $srcdir && pwd`/external/boringssl
4012         AC_SUBST(BTLS_ROOT)
4013
4014         btls_arch=
4015         btls_cflags=
4016         BTLS_CMAKE_ARGS=
4017
4018         case "$BTLS_PLATFORM" in
4019         i386)
4020                 btls_arch=i386
4021                 btls_cflags="-m32"
4022                 case $host_os in
4023                         darwin*)
4024                                 btls_cflags="$btls_cflags -arch i386"
4025                 esac
4026                 ;;
4027         x86_64)
4028                 btls_arch=x86_64
4029                 ;;
4030         android-armv5)
4031                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"armeabi\" -DANDROID_NATIVE_API_LEVEL=12"
4032                 ;;
4033         android-armv6)
4034                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"armeabi\" -DANDROID_NATIVE_API_LEVEL=12"
4035                 ;;
4036         android-armv7)
4037                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"armeabi-v7a\" -DANDROID_NATIVE_API_LEVEL=12"
4038                 ;;
4039         android-v8a)
4040                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"arm64-v8a\" -DANDROID_NATIVE_API_LEVEL=12"
4041                 ;;
4042         android-x86)
4043                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"x86\" -DANDROID_NATIVE_API_LEVEL=12"
4044                 ;;
4045         android-x64)
4046                 BTLS_CMAKE_ARGS="-DANDROID_ABI=\"x86_64\" -DANDROID_NATIVE_API_LEVEL=12"
4047                 ;;
4048         *)
4049                 AC_MSG_ERROR(Invalid BTLS platform)
4050         esac
4051
4052         if test "x$platform_android" = "xyes"; then
4053                 btls_android=yes
4054                 BTLS_CMAKE_ARGS="$BTLS_CMAKE_ARGS -DCMAKE_TOOLCHAIN_FILE=$BTLS_ROOT/util/android-cmake/android.toolchain.cmake"
4055                 if test "x$with_btls_android_ndk" != "x"; then
4056                         BTLS_CMAKE_ARGS="$BTLS_CMAKE_ARGS -DANDROID_NDK=\"$with_btls_android_ndk\""
4057                 fi
4058         fi
4059
4060         if test "x$btls_arch" != "x"; then
4061                 BTLS_CMAKE_ARGS="$BTLS_CMAKE_ARGS -DBTLS_ARCH=\"$btls_arch\""
4062         fi
4063
4064         BTLS_CFLAGS="$CPPFLAGS_FOR_BTLS $btls_cflags"
4065         AC_SUBST(BTLS_ARCH)
4066         AC_SUBST(BTLS_CFLAGS)
4067         AC_SUBST(BTLS_PLATFORM)
4068         AC_SUBST(BTLS_CMAKE_ARGS)
4069
4070         AC_DEFINE(HAVE_BTLS, 1, [BoringTls is supported])
4071 else
4072         enable_btls=no
4073 fi
4074
4075 AM_CONDITIONAL(BTLS_ANDROID, test x$btls_android = xyes)
4076
4077 if test x$DISABLE_MCS_DOCS = xyes; then
4078    docs_dir=""
4079 else
4080    docs_dir=docs
4081 fi
4082 AC_SUBST(docs_dir)
4083
4084 ## Maybe should also disable if mcsdir is invalid.  Let's punt the issue for now.
4085 AM_CONDITIONAL(BUILD_MCS, [test x$cross_compiling = xno && test x$enable_mcs_build != xno])
4086
4087 libmono_ldflags="$libmono_ldflags $LIBS"
4088
4089 AM_CONDITIONAL(MIPS_GCC, test ${TARGET}${ac_cv_prog_gcc} = MIPSyes)
4090 AM_CONDITIONAL(MIPS_SGI, test ${TARGET}${ac_cv_prog_gcc} = MIPSno)
4091 AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
4092 AM_CONDITIONAL(SPARC64, test x$TARGET = xSPARC64)
4093 AM_CONDITIONAL(X86, test x$TARGET = xX86)
4094 AM_CONDITIONAL(AMD64, test x$TARGET = xAMD64)
4095 AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
4096 AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS)
4097 AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
4098 AM_CONDITIONAL(POWERPC64, test x$TARGET = xPOWERPC64)
4099 AM_CONDITIONAL(ARM, test x$TARGET = xARM)
4100 AM_CONDITIONAL(ARM64, test x$TARGET = xARM64)
4101 AM_CONDITIONAL(S390X, test x$TARGET = xS390X)
4102 AM_CONDITIONAL(HOST_X86, test x$HOST = xX86)
4103 AM_CONDITIONAL(HOST_AMD64, test x$HOST = xAMD64)
4104 AM_CONDITIONAL(HOST_ARM, test x$HOST = xARM)
4105 AM_CONDITIONAL(HOST_ARM64, test x$HOST = xARM64)
4106 AM_CONDITIONAL(CROSS_COMPILE, test "x$host" != "x$target")
4107
4108 AC_SUBST(LIBC)
4109 AC_SUBST(INTL)
4110 AC_SUBST(SQLITE)
4111 AC_SUBST(SQLITE3)
4112 AC_SUBST(X11)
4113 AC_SUBST(GDKX11)
4114 AC_SUBST(GTKX11)
4115 AC_SUBST(XINERAMA)
4116 AC_DEFINE_UNQUOTED(MONO_ARCHITECTURE,"$arch_target",[The architecture this is running on])
4117 AC_SUBST(arch_target)
4118 AC_SUBST(CFLAGS)
4119 AC_SUBST(CPPFLAGS)
4120 AC_SUBST(LDFLAGS)
4121
4122 #This must always be defined when building the runtime
4123 AC_DEFINE(MONO_INSIDE_RUNTIME,1, [Disable banned functions from being used by the runtime])
4124
4125 mono_build_root=`pwd`
4126 AC_SUBST(mono_build_root)
4127
4128 mono_runtime=mono/mini/mono
4129 AC_SUBST(mono_runtime)
4130
4131 CSC_LOCATION=`cd $srcdir && pwd`/external/roslyn-binaries/Microsoft.Net.Compilers/Microsoft.Net.Compilers.2.0.0/tools/csc.exe
4132
4133 if test $csc_compiler = mcs; then
4134   CSC=$mcs_topdir/class/lib/build/mcs.exe
4135 else
4136   CSC=$CSC_LOCATION
4137 fi
4138
4139 mono_cfg_root=$mono_build_root/runtime
4140 if test x$host_win32 = xyes; then
4141   if test "x$cross_compiling" = "xno"; then
4142     mono_cfg_dir=`cygpath -w -a $mono_cfg_root`\\etc
4143     CSC="'"`cygpath -w -a $CSC`"'"
4144         CSC_LOCATION="'"`cygpath -w -a $CSC_LOCATION`"'"
4145   else
4146     mono_cfg_dir=`echo $mono_cfg_root | tr '/' '\\'`\\etc
4147   fi
4148 else
4149   mono_cfg_dir=$mono_cfg_root/etc
4150 fi
4151 AC_SUBST(mono_cfg_dir)
4152
4153 AC_SUBST(CSC)
4154
4155 AC_CONFIG_FILES([po/mcs/Makefile.in])
4156
4157 AC_CONFIG_FILES([runtime/mono-wrapper],[chmod +x runtime/mono-wrapper])
4158 AC_CONFIG_FILES([runtime/monodis-wrapper],[chmod +x runtime/monodis-wrapper])
4159
4160 AC_CONFIG_COMMANDS([runtime/etc/mono/1.0/machine.config],
4161 [   depth=../../../..
4162     case $srcdir in
4163     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4164     .) reldir=$depth ;;
4165     *) reldir=$depth/$srcdir ;;
4166     esac
4167     $ac_aux_dir/install-sh -d runtime/etc/mono/1.0
4168     cd runtime/etc/mono/1.0
4169     rm -f machine.config
4170     $LN_S $reldir/data/net_1_1/machine.config machine.config
4171     cd $depth
4172 ],[LN_S='$LN_S'])
4173
4174 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/machine.config],
4175 [   depth=../../../..
4176     case $srcdir in
4177     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4178     .) reldir=$depth ;;
4179     *) reldir=$depth/$srcdir ;;
4180     esac
4181     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
4182     cd runtime/etc/mono/2.0
4183     rm -f machine.config
4184     $LN_S $reldir/data/net_2_0/machine.config machine.config
4185     cd $depth
4186 ],[LN_S='$LN_S'])
4187
4188 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/web.config],
4189 [   depth=../../../..
4190     case $srcdir in
4191     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4192     .) reldir=$depth ;;
4193     *) reldir=$depth/$srcdir ;;
4194     esac
4195     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0
4196     cd runtime/etc/mono/2.0
4197     rm -f web.config
4198     $LN_S $reldir/data/net_2_0/web.config web.config
4199     cd $depth
4200 ],[LN_S='$LN_S'])
4201
4202 AC_CONFIG_COMMANDS([runtime/etc/mono/browscap.ini],
4203 [   depth=../../..
4204     case $srcdir in
4205     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4206     .) reldir=$depth ;;
4207     *) reldir=$depth/$srcdir ;;
4208     esac
4209     $ac_aux_dir/install-sh -d runtime/etc/mono/
4210     cd runtime/etc/mono/
4211     rm -f browscap.ini
4212     $LN_S $reldir/data/browscap.ini browscap.ini
4213     cd $depth
4214 ],[LN_S='$LN_S'])
4215
4216 AC_CONFIG_COMMANDS([runtime/etc/mono/2.0/Browsers/Compat.browser],
4217 [   depth=../../../../..
4218     case $srcdir in
4219     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4220     .) reldir=$depth ;;
4221     *) reldir=$depth/$srcdir ;;
4222     esac
4223     $ac_aux_dir/install-sh -d runtime/etc/mono/2.0/Browsers/
4224     cd runtime/etc/mono/2.0/Browsers
4225     rm -f Compat.browser
4226     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
4227     cd $depth
4228 ],[LN_S='$LN_S'])
4229
4230 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/Browsers/Compat.browser],
4231 [   depth=../../../../..
4232     case $srcdir in
4233     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4234     .) reldir=$depth ;;
4235     *) reldir=$depth/$srcdir ;;
4236     esac
4237     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0/Browsers/
4238     cd runtime/etc/mono/4.0/Browsers
4239     rm -f Compat.browser
4240     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
4241     cd $depth
4242 ],[LN_S='$LN_S'])
4243
4244 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/Browsers/Compat.browser],
4245 [   depth=../../../../..
4246     case $srcdir in
4247     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4248     .) reldir=$depth ;;
4249     *) reldir=$depth/$srcdir ;;
4250     esac
4251     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5/Browsers/
4252     cd runtime/etc/mono/4.5/Browsers
4253     rm -f Compat.browser
4254     $LN_S $reldir/data/Browsers/Compat.browser Compat.browser
4255     cd $depth
4256 ],[LN_S='$LN_S'])
4257
4258 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/machine.config],
4259 [   depth=../../../..
4260     case $srcdir in
4261     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4262     .) reldir=$depth ;;
4263     *) reldir=$depth/$srcdir ;;
4264     esac
4265     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
4266     cd runtime/etc/mono/4.0
4267     rm -f machine.config
4268     $LN_S $reldir/data/net_4_0/machine.config machine.config
4269     cd $depth
4270 ],[LN_S='$LN_S'])
4271
4272 AC_CONFIG_COMMANDS([runtime/etc/mono/4.0/web.config],
4273 [   depth=../../../..
4274     case $srcdir in
4275     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4276     .) reldir=$depth ;;
4277     *) reldir=$depth/$srcdir ;;
4278     esac
4279     $ac_aux_dir/install-sh -d runtime/etc/mono/4.0
4280     cd runtime/etc/mono/4.0
4281     rm -f web.config
4282     $LN_S $reldir/data/net_4_0/web.config web.config
4283     cd $depth
4284 ],[LN_S='$LN_S'])
4285
4286 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/machine.config],
4287 [   depth=../../../..
4288     case $srcdir in
4289     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4290     .) reldir=$depth ;;
4291     *) reldir=$depth/$srcdir ;;
4292     esac
4293     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
4294     cd runtime/etc/mono/4.5
4295     rm -f machine.config
4296     $LN_S $reldir/data/net_4_5/machine.config machine.config
4297     cd $depth
4298 ],[LN_S='$LN_S'])
4299
4300 AC_CONFIG_COMMANDS([runtime/etc/mono/4.5/web.config],
4301 [   depth=../../../..
4302     case $srcdir in
4303     [[\\/$]]* | ?:[[\\/]]* ) reldir=$srcdir ;;
4304     .) reldir=$depth ;;
4305     *) reldir=$depth/$srcdir ;;
4306     esac
4307     $ac_aux_dir/install-sh -d runtime/etc/mono/4.5
4308     cd runtime/etc/mono/4.5
4309     rm -f web.config
4310     $LN_S $reldir/data/net_4_5/web.config web.config
4311     cd $depth
4312 ],[LN_S='$LN_S'])
4313
4314 AC_CONFIG_COMMANDS([quiet-libtool], [sed -e 's/echo "copying selected/# "copying selected/g' < libtool > libtool.tmp && mv libtool.tmp libtool && chmod a+x libtool; sed -e 's/$ECHO "copying selected/# "copying selected/g' < libtool > libtool.tmp && mv libtool.tmp libtool && chmod a+x libtool])
4315 AC_CONFIG_COMMANDS([nolock-libtool], [sed -e 's/lock_old_archive_extraction=yes/lock_old_archive_extraction=no/g' < libtool > libtool.tmp && mv libtool.tmp libtool && chmod a+x libtool])
4316
4317 AC_OUTPUT([
4318 Makefile
4319 mono-uninstalled.pc
4320 acceptance-tests/Makefile
4321 llvm/Makefile
4322 scripts/mono-find-provides
4323 scripts/mono-find-requires
4324 mono/Makefile
4325 mono/btls/Makefile
4326 mono/utils/Makefile
4327 mono/metadata/Makefile
4328 mono/dis/Makefile
4329 mono/cil/Makefile
4330 mono/arch/Makefile
4331 mono/arch/x86/Makefile
4332 mono/arch/amd64/Makefile
4333 mono/arch/ppc/Makefile
4334 mono/arch/sparc/Makefile
4335 mono/arch/s390x/Makefile
4336 mono/arch/arm/Makefile
4337 mono/arch/arm64/Makefile
4338 mono/arch/ia64/Makefile
4339 mono/arch/mips/Makefile
4340 mono/sgen/Makefile
4341 mono/tests/Makefile
4342 mono/tests/tests-config
4343 mono/tests/assemblyresolve/Makefile
4344 mono/tests/gc-descriptors/Makefile
4345 mono/unit-tests/Makefile
4346 mono/benchmark/Makefile
4347 mono/io-layer/Makefile
4348 mono/mini/Makefile
4349 mono/profiler/Makefile
4350 m4/Makefile
4351 ikvm-native/Makefile
4352 scripts/Makefile
4353 man/Makefile
4354 docs/Makefile
4355 data/Makefile
4356 data/net_2_0/Makefile
4357 data/net_4_0/Makefile
4358 data/net_4_5/Makefile
4359 data/net_2_0/Browsers/Makefile
4360 data/net_4_0/Browsers/Makefile
4361 data/net_4_5/Browsers/Makefile
4362 data/mint.pc
4363 data/mono-2.pc
4364 data/monosgen-2.pc
4365 data/mono.pc
4366 data/mono-cairo.pc
4367 data/mono-nunit.pc
4368 data/mono-options.pc
4369 data/mono-lineeditor.pc
4370 data/monodoc.pc
4371 data/dotnet.pc
4372 data/dotnet35.pc
4373 data/wcf.pc
4374 data/cecil.pc
4375 data/system.web.extensions_1.0.pc
4376 data/system.web.extensions.design_1.0.pc
4377 data/system.web.mvc.pc
4378 data/system.web.mvc2.pc
4379 data/system.web.mvc3.pc
4380 data/aspnetwebstack.pc
4381 data/reactive.pc
4382 samples/Makefile
4383 support/Makefile
4384 data/config
4385 tools/Makefile
4386 tools/locale-builder/Makefile
4387 tools/sgen/Makefile
4388 tools/monograph/Makefile
4389 tools/pedump/Makefile
4390 runtime/Makefile
4391 msvc/Makefile
4392 po/Makefile
4393 ])
4394
4395 # Update all submodules recursively to ensure everything is checked out
4396 $srcdir/scripts/update_submodules
4397
4398 if test x$host_win32 = xyes; then
4399    # Get rid of 'cyg' prefixes in library names
4400    sed -e "s/\/cyg\//\/\//" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
4401    # libtool seems to inherit -mno-cygwin from our CFLAGS, and uses it to compile its executable
4402    # wrapper scripts which use exec(). gcc has no problem compiling+linking this, but the resulting
4403    # executable doesn't work...
4404    sed -e "s,-mno-cygwin,,g" libtool > libtool.new; mv libtool.new libtool; chmod 755 libtool
4405 fi
4406
4407 if test x$host_darwin = xyes; then
4408    # This doesn't seem to be required and it slows down parallel builds
4409    sed -e 's,lock_old_archive_extraction=yes,lock_old_archive_extraction=no,g' < libtool > libtool.new && mv libtool.new libtool && chmod +x libtool
4410 fi
4411
4412 (
4413   case $prefix in
4414   NONE) prefix=$ac_default_prefix ;;
4415   esac
4416   case $exec_prefix in
4417   NONE) exec_prefix='${prefix}' ;;
4418   esac
4419
4420   #
4421   # If we are cross compiling, we don't build in the mcs/ tree.  Let us not clobber
4422   # any existing config.make.  This allows people to share the same source tree
4423   # with different build directories, one native and one cross
4424   #
4425   if test x$cross_compiling = xno && test x$enable_mcs_build != xno; then
4426
4427     test -w $mcs_topdir/build || chmod +w $mcs_topdir/build
4428
4429     echo "prefix=$prefix" > $mcs_topdir/build/config.make
4430     echo "exec_prefix=$exec_prefix" >> $mcs_topdir/build/config.make
4431     echo "sysconfdir=$sysconfdir" >> $mcs_topdir/build/config.make
4432     echo 'mono_libdir=${exec_prefix}/lib' >> $mcs_topdir/build/config.make
4433     echo "mono_build_root=$mono_build_root" >> $mcs_topdir/build/config.make
4434     echo 'IL_FLAGS = /debug' >> $mcs_topdir/build/config.make
4435     echo "RUNTIME = $mono_build_root/runtime/mono-wrapper" >> $mcs_topdir/build/config.make
4436     echo "ILDISASM = $mono_build_root/runtime/monodis-wrapper" >> $mcs_topdir/build/config.make
4437     echo "JAY_CFLAGS = $JAY_CFLAGS" >> $mcs_topdir/build/config.make
4438
4439     case $INSTALL in
4440     [[\\/$]]* | ?:[[\\/]]* ) mcs_INSTALL=$INSTALL ;;
4441     *) mcs_INSTALL=$mono_build_root/$INSTALL ;;
4442     esac
4443
4444     echo "INSTALL = $mcs_INSTALL" >> $mcs_topdir/build/config.make
4445
4446     export VERSION
4447     [myver=$($AWK 'BEGIN {
4448       split (ENVIRON["VERSION"] ".0.0.0", vsplit, ".")
4449       if(length(vsplit [1]) > 4) {
4450         split (substr(ENVIRON["VERSION"], 0, 4) "." substr(ENVIRON["VERSION"], 5) ".0.0", vsplit, ".")
4451       }
4452       print vsplit [1] "." vsplit [2] "." vsplit [3] "." vsplit [4]
4453     }')]
4454
4455     echo "MONO_VERSION = $myver" >> $mcs_topdir/build/config.make
4456
4457     if test x$host_darwin = xyes; then
4458       echo "PLATFORM = darwin" >> $mcs_topdir/build/config.make
4459     fi
4460
4461     if test "x$PLATFORM_AOT_SUFFIX" != "x"; then
4462       echo "PLATFORM_AOT_SUFFIX = $PLATFORM_AOT_SUFFIX" >> $mcs_topdir/build/config.make
4463     fi
4464
4465         if test x$AOT_SUPPORTED = xyes -a x$enable_system_aot = xdefault; then
4466            enable_system_aot=yes
4467         fi
4468
4469     if test x$host_win32 = xno -a x$enable_system_aot = xyes; then
4470       echo "ENABLE_AOT = 1" >> $mcs_topdir/build/config.make
4471     fi
4472
4473     if test x$DISABLE_MCS_DOCS = xyes; then
4474       echo "DISABLE_MCS_DOCS = yes" >> $mcs_topdir/build/config.make
4475     fi
4476
4477     if test x$has_extension_module != xno; then
4478         echo "EXTENSION_MODULE = 1" >> $srcdir/$mcsdir/build/config.make
4479     fi
4480
4481     echo "DEFAULT_PROFILE = $default_profile" >> $srcdir/$mcsdir/build/config.make
4482
4483     if test "x$test_bcl_opt" = "xyes"; then
4484       echo "BCL_OPTIMIZE = 1" >> $srcdir/$mcsdir/build/config.make
4485     fi
4486
4487     echo "CSC_LOCATION = $CSC_LOCATION" >> $srcdir/$mcsdir/build/config.make
4488
4489     if test $csc_compiler = mcs; then
4490       echo "MCS_MODE = 1" >> $srcdir/$mcsdir/build/config.make
4491     fi
4492
4493     if test "x$AOT_BUILD_FLAGS" != "x" ; then
4494       echo "AOT_RUN_FLAGS=$AOT_RUN_FLAGS" >> $srcdir/$mcsdir/build/config.make
4495       echo "AOT_BUILD_FLAGS=$AOT_BUILD_FLAGS" >> $srcdir/$mcsdir/build/config.make
4496     fi
4497
4498     if test "x$enable_btls" = "xyes"; then
4499       echo "HAVE_BTLS=1" >> $srcdir/$mcsdir/build/config.make
4500       if test "x$enable_dynamic_btls" = "xyes"; then
4501         echo "HAVE_DYNAMIC_BTLS=1" >> $srcdir/$mcsdir/build/config.make
4502       fi
4503     fi
4504
4505   fi
4506
4507 )
4508
4509 libgdiplus_msg=${libgdiplus_loc:-assumed to be installed}
4510
4511 btls_platform_string=
4512 if test x$enable_btls = xyes; then
4513         if test x$btls_android = xyes; then
4514                 btls_platform_string=" (android:$BTLS_PLATFORM)"
4515         else
4516                 btls_platform_string=" ($BTLS_PLATFORM)"
4517         fi
4518 fi
4519
4520 echo "
4521         mcs source:    $mcsdir
4522         C# Compiler:   $csc_compiler
4523
4524    Engine:
4525         Host:          $host
4526         Target:        $target
4527         GC:            $gc_msg
4528         TLS:           $with_tls
4529         SIGALTSTACK:   $with_sigaltstack
4530         Engine:        $jit_status
4531         BigArrays:     $enable_big_arrays
4532         DTrace:        $enable_dtrace
4533         LLVM Back End: $enable_llvm (dynamically loaded: $enable_loadedllvm)
4534         Interpreter:   $buildinterpreter
4535
4536    Libraries:
4537         .NET 4.x:        $with_profile4_x
4538         Xamarin.Android: $with_monodroid
4539         Xamarin.iOS:     $with_monotouch
4540         Xamarin.WatchOS: $with_monotouch_watch
4541         Xamarin.TVOS:    $with_monotouch_tv
4542         Xamarin.Mac:     $with_xammac
4543         Windows AOT:     $with_winaot
4544         Test profiles:   AOT Full ($with_testing_aot_full), AOT Hybrid ($with_testing_aot_hybrid)
4545         JNI support:     $jdk_headers_found
4546         libgdiplus:      $libgdiplus_msg
4547         zlib:            $zlib_msg
4548         BTLS:            $enable_btls$btls_platform_string
4549         $disabled
4550 "
4551 if test x$with_static_mono = xno -a "x$host_win32" != "xyes"; then
4552    AC_MSG_WARN(Turning off static Mono is a risk, you might run into unexpected bugs)
4553 fi