1.2 backport: Replaced strncmp for SDL_AUDIODRIVER test with strcasecmp.

 Fixes Bugzilla #334.

--HG--
branch : SDL-1.2
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/branches/SDL-1.2%402123

src/audio/SDL_audio.c

@@ -350,7 +350,7 @@ int SDL_AudioInit(const char *driver_name)
 		   This probably isn't the place to do this, but... Shh! :)
 		 */
 		for ( i=0; bootstrap[i]; ++i ) {
-			if ( SDL_strcmp(bootstrap[i]->name, "esd") == 0 ) {
+			if ( SDL_strcasecmp(bootstrap[i]->name, "esd") == 0 ) {
 #ifdef HAVE_PUTENV
 				const char *esd_no_spawn;
 
@@ -381,8 +381,7 @@ int SDL_AudioInit(const char *driver_name)
 			}
 #endif
 			for ( i=0; bootstrap[i]; ++i ) {
-				if (SDL_strncmp(bootstrap[i]->name, driver_name,
-				            SDL_strlen(bootstrap[i]->name)) == 0) {
+				if (SDL_strcasecmp(bootstrap[i]->name, driver_name) == 0) {
 					if ( bootstrap[i]->available() ) {
 						audio=bootstrap[i]->create(idx);
 						break;