* 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/iseq.h b/iseq.h
index d09cdd5414..bc821ec00c 100644
--- a/iseq.h
+++ b/iseq.h
@@ -12,6 +12,10 @@
 #ifndef RUBY_COMPILE_H
 #define RUBY_COMPILE_H
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 /* compile.c */
 VALUE rb_iseq_compile_node(VALUE self, NODE *node);
 int rb_iseq_translate_threaded_code(rb_iseq_t *iseq);
@@ -101,4 +105,8 @@ struct iseq_compile_data {
 #define DEFINED_ZSUPER INT2FIX(9)
 #define DEFINED_FUNC   INT2FIX(10)
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #endif /* RUBY_COMPILE_H */