[xbuild] Fix bug #674630.

[mono.git] / configure.in

diff --git a/configure.in b/configure.in
index 572c37bacc7eaa1e3bf25f797374f5386e5addaa..c14339f267d80c8b9a8e2b9b2f1f621734899a05 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -2539,6 +2539,16 @@ if test ${TARGET} = ARM && test x$cross_compiling = xno && test x$enable_mcs_bui
        AC_MSG_RESULT($fpu)
        CPPFLAGS="$CPPFLAGS -DARM_FPU_$fpu=1"
        unset fpu
+
+       AC_MSG_CHECKING(for ARMV6)
+       AC_TRY_RUN([
+               int main () { __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 5" : : "r" (0) : "memory"); return 0; }
+                       ], armv6=yes, armv6=no)
+
+       AC_MSG_RESULT($armv6)
+       if test ${armv6} = yes; then
+          AC_DEFINE(HAVE_ARMV6, 1, "Host supports ARMV6 instructions")
+       fi
 fi
 
 if test ${TARGET} = unknown; then