Require gcc 4.0 or later on Mac OS X to use the hidden attribute.

13 years ago · a75d6ea070
parent 660103339f
commit a75d6ea070
2 changed files with 4 additions and 2 deletions
--- a/gzguts.h
+++ b/gzguts.h
@ -12,7 +12,8 @@
 #  endif
 #endif

-#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ)
+#define GCC_VER ((__GNUC__-0) * 100 + __GNUC_MINOR__-0)
+#if (GCC_VER >= 303 && !defined(__APPLE__)) || GCC_VER >= 400
 #  define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
 #else
 #  define ZLIB_INTERNAL
--- a/zutil.h
+++ b/zutil.h
@ -13,7 +13,8 @@
 #ifndef ZUTIL_H
 #define ZUTIL_H

-#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ)
+#define GCC_VER ((__GNUC__-0) * 100 + __GNUC_MINOR__-0)
+#if (GCC_VER >= 303 && !defined(__APPLE__)) || GCC_VER >= 400
 #  define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
 #else
 #  define ZLIB_INTERNAL