lib/icu/Collate: fall back to strcoll() instead of strcasecmp()

src/Main.cxx

@@ -438,6 +438,7 @@ int mpd_main(int argc, char *argv[])
 #ifdef HAVE_LOCALE_H
 	/* initialize locale */
 	setlocale(LC_CTYPE,"");
+	setlocale(LC_COLLATE, "");
 #endif
 
 #ifdef HAVE_GLIB

src/lib/icu/Collate.cxx

@@ -136,7 +136,7 @@ IcuCollate(const char *a, const char *b)
 #elif defined(HAVE_GLIB)
 	return g_utf8_collate(a, b);
 #else
-	return strcasecmp(a, b);
+	return strcoll(a, b);
 #endif
 }