They didn't match the ifdef logic used within libcurl anyway so they
could indeed warn for the wrong case - plus the tool cannot know how the
lib actually performs at that level.
if(!config->nokeepalive) {
my_setopt(curl, CURLOPT_TCP_KEEPALIVE, 1L);
if(config->alivetime != 0) {
-#if !defined(TCP_KEEPIDLE) || !defined(TCP_KEEPINTVL)
- warnf(config->global, "Keep-alive functionality somewhat crippled "
- "due to missing support in your operating system!\n");
-#endif
my_setopt(curl, CURLOPT_TCP_KEEPIDLE, config->alivetime);
my_setopt(curl, CURLOPT_TCP_KEEPINTVL, config->alivetime);
}