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* configure.in: change CFLAGS temporally to test
ARCH_FLAG="-march=i486". git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39162 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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@ -1,3 +1,8 @@
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Fri Feb 8 23:25:33 2013 Tanaka Akira <akr@fsij.org>
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* configure.in: change CFLAGS temporally to test
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ARCH_FLAG="-march=i486".
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Fri Feb 8 21:19:41 2013 Tanaka Akira <akr@fsij.org>
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* configure.in: don't define ARCH_FLAG="-march=i486" if it causes
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@ -1555,13 +1555,17 @@ AS_CASE(["$target_cpu-$target_os"], [[i[3-6]86*]], [
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if test "$rb_cv_gcc_compiler_cas" = no; then
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unset rb_cv_gcc_compiler_cas
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ARCH_FLAG="-march=i486"
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save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -march=i486"
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AC_CACHE_CHECK([for __sync_val_compare_and_swap with -march=i486], [rb_cv_gcc_compiler_cas], [
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AC_TRY_LINK([unsigned long atomic_var;],
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[
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__sync_val_compare_and_swap(&atomic_var, 0, 1);
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],
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[rb_cv_gcc_compiler_cas=yes],
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[rb_cv_gcc_compiler_cas=no; unset ARCH_FLAG])])
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[rb_cv_gcc_compiler_cas=yes
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ARCH_FLAG="-march=i486"],
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[rb_cv_gcc_compiler_cas=no])])
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CFLAGS="$save_CFLAGS"
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fi])
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AC_CACHE_CHECK(for signbit, rb_cv_have_signbit,
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