From 214d5777f84bc5e2103c62f3838e6103ad220d3a Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Sat, 29 Apr 2006 04:08:40 +0000
Subject: [PATCH] Only use -fvisibility=hidden if SDL will define some symbols
 as available. :)

---
 configure.in | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/configure.in b/configure.in
index 0cbe850e7..89ed18a9f 100644
--- a/configure.in
+++ b/configure.in
@@ -715,7 +715,9 @@ CheckVisibilityHidden()
     save_CFLAGS="$CFLAGS"
     CFLAGS="$save_CFLAGS $visibility_CFLAGS"
     AC_TRY_COMPILE([
-        int placeholder = 1;
+    #if !defined(__GNUC__) || __GNUC__ < 4
+    #error SDL only uses visibility attributes in GCC 4 or newer
+    #endif
     ],[
     ],[
     have_gcc_fvisibility=yes