1 files changed, 8 insertions, 0 deletions
diff --git a/regenc.h b/regenc.h
index 9974165258..16fe9db813 100644
--- a/regenc.h
+++ b/regenc.h
@@ -39,6 +39,10 @@
 #endif
 #include "ruby/oniguruma.h"
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 typedef struct {
   OnigCodePoint from;
   OnigCodePoint to;
@@ -208,4 +212,8 @@ extern int ONIG_ENC_REGISTER(const char *, OnigEncodingType*);
 #define ENC_ALIAS(name, orig)
 #define ENC_DUMMY(name)
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #endif /* ONIGURUMA_REGENC_H */