* posix/tst-execle1.c (do_test): Add a const.

* posix/tst-execle2.c (do_test): Likewise.

	* posix/transbug.c (run_test): Add some casts.
	* posix/bug-regex22.c (main): Likewise.
	* posix/bug-regex5.c (main): Likewise.
	* wcsmbs/tst-mbsrtowcs.c (main): Likewise.
	* string/test-strspn.c (do_test, do_random_tests): Likewise.
	* string/test-strrchr.c (do_test, do_random_tests): Likewise.
	* string/test-strlen.c (do_random_tests): Likewise.
	* string/test-strpbrk.c (do_test, do_random_tests): Likewise.
	* string/test-strcmp.c (do_random_tests): Likewise.
	* string/test-strchr.c (do_test, do_random_tests): Likewise.
	* string/test-strcat.c (do_test, do_random_tests): Likewise.
	* string/test-strncpy.c (do_random_tests): Likewise.
	* string/test-strcpy.c (do_test, do_random_tests): Likewise.
	* string/test-memccpy.c (do_test): Likewise.
	* string/test-memmove.c (do_test, do_random_tests): Likewise.
	* string/test-memcpy.c (do_test, do_random_tests): Likewise.
	* string/test-memcmp.c (do_test, do_random_tests): Likewise.
	* string/test-memchr.c (do_test, do_random_tests): Likewise.
	* dlfcn/bug-atexit1.c (do_test): Fix up prototype in cast.
	* stdio-common/tst-fgets.c (do_test): Add a cast.
	* iconvdata/bug-iconv4.c (xiconv): Add a cast.

	* locale/programs/simple-hash.c (insert_entry_2): Remove useless casts.

	* resolv/herror.c (herror): Remove unused extern decl.

	* libio/obprintf.c: Include "strfile.h".

	* elf/order2mod2.c (init): Cast ignored value to void.

	* stdio-common/tstdiomisc.c: If FLT_EVAL_METHOD is 2, use long

resolv/herror.c

@@ -80,7 +80,6 @@ const int	h_nerr = { sizeof h_errlist / sizeof h_errlist[0] };
 void
 herror(const char *s) {
 	struct iovec iov[4], *v = iov;
-	extern int * __h_errno();
 
 	if (s != NULL && *s != '\0') {
 		v->iov_base = (/*noconst*/ char *)s;