1 files changed, 1 insertions, 1 deletions

diff --git a/gzguts.h b/gzguts.h
index 6800fa7..735e808 100644
--- a/gzguts.h
+++ b/gzguts.h
@@ -13,7 +13,7 @@
 #endif
 
 #define GCC_VER ((__GNUC__-0) * 100 + __GNUC_MINOR__-0)
-#if (GCC_VER >= 303 && !defined(__APPLE__)) || GCC_VER >= 400
+#if ((GCC_VER >= 303 && !defined(__APPLE__)) || GCC_VER >= 400) && !defined(NO_VIZ)
 #  define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
 #else
 #  define ZLIB_INTERNAL