'htons' [-Wimplicit-function-declaration] uint16_t x = htons(n); ^ ../deps/nghttp2/lib/nghttp2_helper.c: In function 'nghttp2_put_uint32be': ../deps/nghttp2/lib/nghttp2_helper.c:38:16: warning: implicit declaration of function 'htonl' [-Wimplicit-function-declaration] uint32...