diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index a6231b694c..093010d301 100644 --- a/configure.ac +++ b/configure.ac @@ -794,7 +794,13 @@ AS_CASE(["$target_os"], ORIG_LIBS="$LIBS" RUBY_PREPEND_OPTION(LIBS, -lobjc) RUBY_APPEND_OPTIONS(CPPFLAGS, -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT) - AS_IF([test "${target_os@%:@darwin}" -ge 16], [ + AC_CACHE_CHECK([whether syscall(2) is deprecated], rb_cv_syscall_deprecated, + [RUBY_WERROR_FLAG([ + AC_TRY_COMPILE([@%:@include <unistd.h>], + [if (syscall(0)) return 1;], + [rb_cv_syscall_deprecated=no], + [rb_cv_syscall_deprecated=yes])])]) + AS_IF([test $rb_cv_syscall_deprecated = yes], [ ac_cv_func___syscall=no ac_cv_func_syscall=no ac_cv_header_sys_syscall_h=no |