--- configure.orig	2012-01-19 06:30:12 UTC
+++ configure
@@ -2039,12 +2039,6 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 ac_config_headers="$ac_config_headers include/SDL_config.h"
 
-
-cat >>confdefs.h <<\_ACEOF
-#define _GNU_SOURCE 1
-_ACEOF
-
-
 ac_aux_dir=
 for ac_dir in $srcdir/build-scripts; do
   if test -f "$ac_dir/install-sh"; then
@@ -15826,7 +15820,7 @@ case "$host" in
         BASE_LDFLAGS="-mno-cygwin"
         ;;
     *)
-        BASE_CFLAGS="-D_GNU_SOURCE=1"
+        BASE_CFLAGS=""
         BASE_LDFLAGS=""
         ;;
 esac