From 0bd71ff35455d308c838c00a7e16fd093d36e4d7 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 21 Jul 2010 21:38:25 +0000
Subject: * 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
---
 include/ruby/vm.h | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'include/ruby/vm.h')

diff --git a/include/ruby/vm.h b/include/ruby/vm.h
index ac8e599e90..072d7d6f19 100644
--- a/include/ruby/vm.h
+++ b/include/ruby/vm.h
@@ -19,6 +19,10 @@ extern "C" {
 #endif
 #endif
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 /* Place holder.
  *
  * We will prepare VM creation/control APIs on 1.9.2 or later.
@@ -32,6 +36,10 @@ typedef struct rb_vm_struct ruby_vm_t;
 /* core API */
 int ruby_vm_destruct(ruby_vm_t *vm);
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #if defined(__cplusplus)
 #if 0
 { /* satisfy cc-mode */
-- 
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