url: removed "extern" from function declaration.
diff --git a/src/misc/SDL_url.c b/src/misc/SDL_url.c
index 13f914f..6fcda8f 100644
--- a/src/misc/SDL_url.c
+++ b/src/misc/SDL_url.c
@@ -23,7 +23,7 @@
#include "SDL_misc.h"
#include "SDL_error.h"
-extern int SDL_SYS_OpenURL(const char *url);
+int SDL_SYS_OpenURL(const char *url);
int
SDL_OpenURL(const char *url)