* environ.cc (environ_init): Avoid a compiler warning.

* path.cc (path_conv::check): Ditto.
* path.h (path_conv::operator int): Ditto.
* regex/engine.c: Ditto throughout.
* regex/regcomp.c: Ditto throughout.
* regex/regexec.c: Ditto throughout.

winsup/cygwin/regex/engine.c

@@ -71,7 +71,7 @@ regmatch_t pmatch[];
 int eflags;
 {
 	register char *endp;
-	register int i;
+	register size_t i;
 	struct match mv;
 	register struct match *m = &mv;
 	register char *dp;