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| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | configure.in | 8 |
2 files changed, 13 insertions, 0 deletions
@@ -1,3 +1,8 @@ +Fri Feb 8 21:19:41 2013 Tanaka Akira <akr@fsij.org> + + * configure.in: don't define ARCH_FLAG="-march=i486" if it causes + compilation problem. + Fri Feb 8 19:56:54 2013 NAKAMURA Usaku <usa@ruby-lang.org> * array.c (rb_ary_dup): reverted r39004. see [Bug #7768], and diff --git a/configure.in b/configure.in index 5850bbf488..ea57241230 100644 --- a/configure.in +++ b/configure.in @@ -1553,7 +1553,15 @@ AS_CASE(["$target_cpu-$target_os"], [[i[3-6]86*]], [ [rb_cv_gcc_compiler_cas=yes], [rb_cv_gcc_compiler_cas=no])]) if test "$rb_cv_gcc_compiler_cas" = no; then + unset rb_cv_gcc_compiler_cas ARCH_FLAG="-march=i486" + AC_CACHE_CHECK([for __sync_val_compare_and_swap with -march=i486], [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; unset ARCH_FLAG])]) fi]) AC_CACHE_CHECK(for signbit, rb_cv_have_signbit, |