* configure.in (XCFLAGS): use -fvisibility=hidden if possible.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28709 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 0 deletions

diff --git a/cont.c b/cont.c
index 6065d34eff..962ea03664 100644
--- a/cont.c
+++ b/cont.c
@@ -1428,6 +1428,10 @@ Init_Cont(void)
     rb_define_method(rb_cFiber, "resume", rb_fiber_m_resume, -1);
 }
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 void
 ruby_Init_Continuation_body(void)
 {
@@ -1446,3 +1450,7 @@ ruby_Init_Fiber_as_Coroutine(void)
     rb_define_method(rb_cFiber, "alive?", rb_fiber_alive_p, 0);
     rb_define_singleton_method(rb_cFiber, "current", rb_fiber_s_current, 0);
 }
+
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif