Unbreak SDL on Mac OS X

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6620 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/vl.c b/vl.c
index 5f237d0..b653056 100644
--- a/vl.c
+++ b/vl.c
@@ -137,6 +137,13 @@
 #ifdef CONFIG_SDL
 #ifdef __APPLE__
 #include <SDL/SDL.h>
+int qemu_main(int argc, char **argv, char **envp);
+int main(int argc, char **argv)
+{
+    qemu_main(argc, argv, NULL);
+}
+#undef main
+#define main qemu_main
 #endif
 #endif /* CONFIG_SDL */