*darwin* )
OS_DIR="darwin"
- OS_FLAGS="-D__DARWIN__"
+ OS_FLAGS="-D__DARWIN__ -D_XOPEN_SOURCE=600 -D_DARWIN_C_SOURCE"
INTRP_CFLAGS="-Wall -Wno-long-long $ARCH_FLAGS $OS_FLAGS"
;;
AC_CHECK_FUNCS([fflush])
AC_CHECK_FUNCS([fopen])
AC_CHECK_FUNCS([fprintf])
+AC_CHECK_FUNCS([vfprintf])
AC_CHECK_FUNCS([fread])
AC_CHECK_FUNCS([free])
AC_CHECK_FUNCS([fstat])