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Refix of r37904

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37911 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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naruse 2012-11-27 23:30:33 +00:00
parent 4ba88161ee
commit 13dc0e14fe
2 changed files with 15 additions and 4 deletions
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1
ChangeLog
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@ -43,6 +43,7 @@ Wed Nov 28 02:55:35 2012 NARUSE, Yui <naruse@ruby-lang.org>
* configure.in (ARCH_FLAG): __sync_val_compare_and_swap_4 needs
-march=$target_cpu on at least linux gcc 4.1.
patched by KOSAKI Motohiro
Tue Nov 27 22:03:09 2012 Akinori MUSHA <knu@iDaemons.org>

18
configure.in
View file

@ -241,10 +241,9 @@ AC_ARG_WITH(arch,
AC_DEFUN([RUBY_DEFAULT_ARCH], [
AC_MSG_CHECKING([arch option])
AS_CASE([$1-$target_os],
[*64-*], [ARCH_FLAG=-m64],
[[i[3-6]86-linux]], [ARCH_FLAG=-march=$1],
[[i[3-6]86-*]], [ARCH_FLAG=-m32],
AS_CASE([$1],
[*64], [ARCH_FLAG=-m64],
[[i[3-6]86]], [ARCH_FLAG=-m32],
[AC_MSG_ERROR(unknown target architecture: $target_archs)]
)
AC_MSG_RESULT([$ARCH_FLAG])
@ -1534,6 +1533,17 @@ AS_CASE(["$target_os"],
[hpux*], [AC_DEFINE(SPT_TYPE,SPT_PSTAT) ],
[])
AC_CACHE_CHECK([for __sync_val_compare_and_swap], [rb_cv_gcc_compiler_cas], [
AC_TRY_LINK([unsigned long atomic_var;],
[
__sync_val_compare_and_swap(&atomic_var, 0, 1);
],
[rb_cv_gcc_compiler_cas=yes],
[rb_cv_gcc_compiler_cas=no])])
if test "$rb_cv_gcc_compiler_cas" = no; then
ARCH_FLAG="-march=i486"
fi
AC_CACHE_CHECK(for signbit, rb_cv_have_signbit,
[AC_TRY_LINK([