Fixed iconv handling on Solaris 11

--HG--
branch : SDL-1.2
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/branches/SDL-1.2%402502

src/stdlib/SDL_iconv.c

@@ -806,6 +806,16 @@ char *SDL_iconv_string(const char *tocode, const char *fromcode, const char *inb
 	size_t retCode = 0;
 
 	cd = SDL_iconv_open(tocode, fromcode);
+	if ( cd == (SDL_iconv_t)-1 ) {
+		/* See if we can recover here (fixes iconv on Solaris 11) */
+		if ( !tocode || !*tocode ) {
+			tocode = "UTF-8";
+		}
+		if ( !fromcode || !*fromcode ) {
+			tocode = "UTF-8";
+		}
+		cd = SDL_iconv_open(tocode, fromcode);
+	}
 	if ( cd == (SDL_iconv_t)-1 ) {
 		return NULL;
 	}