diff options
| author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-10-26 09:09:45 +0000 |
|---|---|---|
| committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-10-26 09:09:45 +0000 |
| commit | 767d70841a998c16a7487f9b286a9a944f69e7b7 (patch) | |
| tree | f7ad13b6a798af772e149f24cd140872871cc88a /configure.in | |
| parent | 67d7448fca92474e2701e4ca973c03dbb06b4690 (diff) | |
* Makefile.in (ASFLAGS): needs INCFLAGS.
* configure.in (rb_cv_dynamic_alloca): check if extra source for
dynamic size alloca.
* missing/x86_64-chkstk.s (___chkstk): necessary for alloca of
amd64-mingw32msvc-gcc on Ubutu.
* thread_win32.c (ruby_alloca_chkstk): check stack overflow
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29598 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 5dc59396a2..73e7c138e2 100644 --- a/configure.in +++ b/configure.in @@ -1199,6 +1199,27 @@ AS_CASE(["${target_cpu}-${target_os}:${target_archs}"], [ AC_FUNC_ALLOCA ]) +if test "x$ALLOCA" = "x"; then + AC_CACHE_CHECK([for dynamic size alloca], rb_cv_dynamic_alloca, [ + for chk in ok __chkstk; do + AC_TRY_LINK([ + @%:@ifdef HAVE_ALLOCA_H + @%:@include <alloca.h> + @%:@endif + void $chk() {} + int dynamic_alloca_test; + int dynamic_alloca_result;], + [dynamic_alloca_result = alloca(dynamic_alloca_test) != 0;], + [rb_cv_dynamic_alloca=$chk; break]) + done]) + if test "x$rb_cv_dynamic_alloca" = "x__chkstk"; then + AC_DEFINE_UNQUOTED(RUBY_ALLOCA_CHKSTK, _$rb_cv_dynamic_alloca) + AS_CASE("$target_cpu", + [x64|x86_64], [ + AC_SUBST([ALLOCA], [\${LIBOBJDIR}x86_64-chkstk.${ac_objext}]) + ],) + fi +fi AC_FUNC_MEMCMP # http://sources.redhat.com/ml/libc-hacker/2005-08/msg00008.html |