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* configure.in: fix r37294: run only on i[3-6]86-linux.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37926 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
naruse 2012-11-28 06:45:25 +00:00
parent e6ef313a49
commit 013521e557
2 changed files with 16 additions and 0 deletions

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@ -1,3 +1,7 @@
Wed Nov 28 15:37:17 2012 NARUSE, Yui <naruse@ruby-lang.org>
* configure.in: fix r37294: run only on i[3-6]86-linux.
Wed Nov 28 15:31:11 2012 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* io.c (FMODE_SYNCWRITE): removed unused macro.

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@ -1534,6 +1534,18 @@ AS_CASE(["$target_os"],
[])
AS_CASE(["$target_cpu-$target_os"], [[i[3-6]86-linux*]], [
AC_CACHE_CHECK([for __sync_val_compare_and_swap], [rb_cv_gcc_compiler_cas], [
AC_TRY_LINK([unsigned long atomic_var;],
[
__sync_val_compare_and_swap(&atomic_var, 0, 1);
],
[rb_cv_gcc_compiler_cas=yes],
[rb_cv_gcc_compiler_cas=no])])
if test "$rb_cv_gcc_compiler_cas" = no; then
ARCH_FLAG="-march=i486"
fi])
AC_CACHE_CHECK(for signbit, rb_cv_have_signbit,
[AC_TRY_LINK([
#include <math.h>