Fixes Debian bugs
	#401950 (nexuiz: double free, memory errors)
	http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=401950

and
	#380508 (libsdl1.2debian: dosbox doesn't start due to invalid free)
	http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=380508

These patches are also in Mandriva
Adapted for Gentoo by Peter Alfredsen

--- SDL-1.2.11.orig/src/cdrom/linux/SDL_syscdrom.c	2006-05-01 10:02:43.000000000 +0200
+++ SDL-1.2.11/src/cdrom/linux/SDL_syscdrom.c	2007-03-05 18:08:45.000000000 +0100
@@ -216,22 +216,22 @@
 
 			/* Handle "supermount" filesystem mounts */
 			if ( SDL_strcmp(mnt_type, MNTTYPE_SUPER) == 0 ) {
 				tmp = SDL_strstr(mntent->mnt_opts, "fs=");
 				if ( tmp ) {
-					SDL_free(mnt_type);
+					SDL_stack_free(mnt_type);
 					mnt_type = SDL_strdup(tmp + SDL_strlen("fs="));
 					if ( mnt_type ) {
 						tmp = SDL_strchr(mnt_type, ',');
 						if ( tmp ) {
 							*tmp = '\0';
 						}
 					}
 				}
 				tmp = SDL_strstr(mntent->mnt_opts, "dev=");
 				if ( tmp ) {
-					SDL_free(mnt_dev);
+					SDL_stack_free(mnt_dev);
 					mnt_dev = SDL_strdup(tmp + SDL_strlen("dev="));
 					if ( mnt_dev ) {
 						tmp = SDL_strchr(mnt_dev, ',');
 						if ( tmp ) {
 							*tmp = '\0';