Use SDL_ prefixed versions of C library functions.

FIXME:
Change #include <stdlib.h> to #include "SDL_stdlib.h"
Change #include <string.h> to #include "SDL_string.h"
Make sure nothing else broke because of this...

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%401340

src/main/macos/SDL_main.c

@@ -589,7 +589,7 @@ int main(int argc, char *argv[])
 
     /* Parse C-string into argv and argc */
     nargs = ParseCommandLine (commandLine, NULL);
-    args = (char **)malloc((nargs+1)*(sizeof *args));
+    args = (char **)SDL_malloc((nargs+1)*(sizeof *args));
     if ( args == NULL ) {
 		exit(-1);
 	}