http-backend: mark argc/argv unused

We can't drop them because it's cmd_main(), which has a set prototype,
but the CGI interface does not do anything with such arguments.

Arguably we could detect them and complain. It's possible this could
detect misconfigurations or other mistakes, but:

  - as far as I can tell common webservers like apache do not have any
    mechanism to pass arguments to a CGI at all, so this isn't a mistake
    one could even make

  - it's possible that some obscure webserver might pass arguments, and
    we'd break that case. I have no idea if such a webserver exists; the
    CGI standard says only "The script is invoked in a system-defined
    manner".

So probably it would not hurt to detect them, but it also is unlikely to
help anyone. Let's just mark them as unused, which retains the current
behavior but silences -Wunused-parameter.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/http-backend.c b/http-backend.c
index 8ab58e55f8524851fa77e047e9b9a5dfd31eb6bd..fc3ab97c0fe7035dcc33076e39da27f29309edb5 100644 (file)
--- a/http-backend.c
+++ b/http-backend.c
@@ -736,7 +736,7 @@ static int bad_request(struct strbuf *hdr, const struct service_cmd *c)
        return 0;
 }
 
-int cmd_main(int argc, const char **argv)
+int cmd_main(int argc UNUSED, const char **argv UNUSED)
 {
        char *method = getenv("REQUEST_METHOD");
        const char *proto_header;