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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2010-11-05 22:33:18 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2010-11-05 22:33:18 +0000
commit967e92af874b33b739c349633f091033645f831e (patch)
tree1ba7b463230c9c1e8e915f62280e8ab13b00ac99 /configure.in
parent8f5689bf3c6dd9bf56caa63a7d3fca7be70f3869 (diff)
downloadruby-967e92af874b33b739c349633f091033645f831e.tar.gz
* configure.in (rb_cv_export_prefix): check for prefixed
underscore of exported symbols git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29706 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'configure.in')
-rw-r--r--configure.in10
1 files changed, 9 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index e0f8f6444f..43962e026c 100644
--- a/configure.in
+++ b/configure.in
@@ -2344,6 +2344,13 @@ AC_SUBST(INSTALLDOC)
if test "$rb_with_pthread" = "yes"; then
THREAD_MODEL=pthread
fi
+AC_CACHE_CHECK([for prefixed underscore of exported symbols], rb_cv_export_prefix, [
+ AC_TRY_COMPILE([extern void conftest_exported(void) {}], [], [
+ rb_cv_export_prefix=`$NM conftest.$ac_objext |
+ sed -n ['s/.*\(_\)conftest_exported.*/\1/p']`
+ ],
+ [rb_cv_export_prefix=''])
+])
MINIDLNOBJ=dmydln.o
AS_CASE(["$target_os"],
[linux*], [
@@ -2409,7 +2416,8 @@ AS_CASE(["$target_os"],
LIBRUBY_SO='$(RUBY_SO_NAME)'.dll
LIBRUBY_DLDFLAGS="${LIBRUBY_DLDFLAGS}"' $(RUBYDEF)'
fi
- EXPORT_PREFIX=' '
+ test -z "$rb_cv_export_prefix" && rb_cv_export_prefix=' '
+ EXPORT_PREFIX="$rb_cv_export_prefix"
DLDFLAGS="${DLDFLAGS}"' $(DEFFILE)'
AC_LIBOBJ([win32])
COMMON_LIBS=m