diff --git a/lib/hostip.c b/lib/hostip.c
index 58855328d4..191aaeb8de 100644
--- a/lib/hostip.c
+++ b/lib/hostip.c
@@ -505,6 +505,8 @@ Curl_dnscache_mk_entry(struct Curl_easy *data,
       return NULL;
     }
   }
+#else
+  (void)data;
 #endif
   if(!hostlen)
     hostlen = strlen(hostname);
diff --git a/lib/setopt.c b/lib/setopt.c
index eecfd55326..1380c33db6 100644
--- a/lib/setopt.c
+++ b/lib/setopt.c
@@ -240,6 +240,7 @@ static CURLcode protocol2num(const char *str, curl_prot_t *val)
   return CURLE_OK;
 }
 
+#if !defined(CURL_DISABLE_HTTP) || !defined(CURL_DISABLE_PROXY)
 static CURLcode httpauth(struct Curl_easy *data, bool proxy,
                          unsigned long auth)
 {
@@ -284,6 +285,7 @@ static CURLcode httpauth(struct Curl_easy *data, bool proxy,
     data->set.httpauth = auth;
   return CURLE_OK;
 }
+#endif /* !CURL_DISABLE_HTTP || !CURL_DISABLE_PROXY */
 
 #ifndef CURL_DISABLE_HTTP
 static CURLcode setopt_HTTP_VERSION(struct Curl_easy *data, long arg)
diff --git a/lib/url.c b/lib/url.c
index 56c88810f8..977b6a6049 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -2760,6 +2760,7 @@ static CURLcode parse_remote_port(struct Curl_easy *data,
   return CURLE_OK;
 }
 
+#ifndef CURL_DISABLE_NETRC
 static bool str_has_ctrl(const char *input)
 {
   if(input) {
@@ -2772,6 +2773,7 @@ static bool str_has_ctrl(const char *input)
   }
   return FALSE;
 }
+#endif
 
 /*
  * Override the login details from the URL with that in the CURLOPT_USERPWD