travis: add build for "configure --disable-verbose"

Closes #3144

.travis.yml

@@ -57,6 +57,10 @@ matrix:
           compiler: gcc
           dist: trusty
           env: T=normal C="--enable-ares"
+        - os: linux
+          compiler: gcc
+          dist: trusty
+          env: T=normal C="--disable-verbose" CPPFLAGS="-Wno-variadic-macros" NOTESTS=1
         - os: linux
           compiler: gcc
           dist: trusty
@@ -296,7 +300,9 @@ script:
         if [ "$T" = "normal" ]; then
              ./configure --enable-warnings --enable-werror $C
              make && make examples
-             make test-nonflaky
+             if [ -z $NOTESTS ]; then
+                make test-nonflaky
+             fi
              if [ -n $CHECKSRC ]; then
                 make checksrc
              fi

lib/arpa_telnet.h

@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -37,6 +37,7 @@
 #define CURL_NEW_ENV_VAR   0
 #define CURL_NEW_ENV_VALUE 1
 
+#ifndef CURL_DISABLE_VERBOSE_STRINGS
 /*
  * The telnet options represented as strings
  */
@@ -53,6 +54,7 @@ static const char * const telnetoptions[]=
   "TERM SPEED",  "LFLOW",          "LINEMODE",      "XDISPLOC",
   "OLD-ENVIRON", "AUTHENTICATION", "ENCRYPT",       "NEW-ENVIRON"
 };
+#endif
 
 #define CURL_TELOPT_MAXIMUM CURL_TELOPT_NEW_ENVIRON
 
@@ -76,6 +78,7 @@ static const char * const telnetoptions[]=
 #define CURL_DONT 254 /* DON'T use this option! */
 #define CURL_IAC  255 /* Interpret As Command */
 
+#ifndef CURL_DISABLE_VERBOSE_STRINGS
 /*
  * Then those numbers represented as strings:
  */
@@ -86,6 +89,7 @@ static const char * const telnetcmds[]=
   "AYT",  "EC",    "EL",    "GA",   "SB",
   "WILL", "WONT",  "DO",    "DONT", "IAC"
 };
+#endif
 
 #define CURL_TELCMD_MINIMUM CURL_xEOF /* the first one */
 #define CURL_TELCMD_MAXIMUM CURL_IAC  /* surprise, 255 is the last one! ;-) */

lib/doh.c

@@ -41,6 +41,7 @@
 #define DNS_CLASS_IN 0x01
 #define DOH_MAX_RESPONSE_SIZE 3000 /* bytes */
 
+#ifndef CURL_DISABLE_VERBOSE_STRINGS
 static const char * const errors[]={
   "",
   "Bad label",
@@ -63,6 +64,7 @@ static const char *doh_strerror(DOHcode code)
     return errors[code];
   return "bad error code";
 }
+#endif
 
 #ifdef DEBUGBUILD
 #define UNITTEST
@@ -640,6 +642,7 @@ UNITTEST DOHcode doh_decode(unsigned char *doh,
   return DOH_OK; /* ok */
 }
 
+#ifndef CURL_DISABLE_VERBOSE_STRINGS
 static void showdoh(struct Curl_easy *data,
                     struct dohentry *d)
 {
@@ -675,6 +678,9 @@ static void showdoh(struct Curl_easy *data,
     infof(data, "CNAME: %s\n", d->cname[i].alloc);
   }
 }
+#else
+#define showdoh(x,y)
+#endif
 
 /*
  * doh2ai()
@@ -791,10 +797,12 @@ doh2ai(const struct dohentry *de, const char *hostname, int port)
   return firstai;
 }
 
+#ifndef CURL_DISABLE_VERBOSE_STRINGS
 static const char *type2name(DNStype dnstype)
 {
   return (dnstype == DNS_TYPE_A)?"A":"AAAA";
 }
+#endif
 
 UNITTEST void de_cleanup(struct dohentry *d)
 {

lib/http2.c

@@ -1108,7 +1108,8 @@ static ssize_t data_source_read_callback(nghttp2_session *session,
   return nread;
 }
 
-#ifdef NGHTTP2_HAS_ERROR_CALLBACK
+#if defined(NGHTTP2_HAS_ERROR_CALLBACK) &&      \
+  !defined(CURL_DISABLE_VERBOSE_STRINGS)
 static int error_callback(nghttp2_session *session,
                           const char *msg,
                           size_t len,
@@ -1226,7 +1227,9 @@ CURLcode Curl_http2_init(struct connectdata *conn)
     /* nghttp2_on_header_callback */
     nghttp2_session_callbacks_set_on_header_callback(callbacks, on_header);
 
+#ifndef CURL_DISABLE_VERBOSE_STRINGS
     nghttp2_session_callbacks_set_error_callback(callbacks, error_callback);
+#endif
 
     /* The nghttp2 session is not yet setup, do it */
     rc = nghttp2_session_client_new(&conn->proto.httpc.h2, callbacks, conn);

lib/sendf.h

@@ -36,7 +36,7 @@ void Curl_failf(struct Curl_easy *, const char *fmt, ...);
 #elif defined(HAVE_VARIADIC_MACROS_GCC)
 #define infof(x...)  Curl_nop_stmt
 #else
-#define infof (void)
+#error "missing VARIADIC macro define, fix and rebuild!"
 #endif
 
 #else /* CURL_DISABLE_VERBOSE_STRINGS */

lib/vtls/openssl.c

@@ -1418,6 +1418,10 @@ static bool subj_alt_hostcheck(struct Curl_easy *data,
 }
 #else
 {
+#ifdef CURL_DISABLE_VERBOSE_STRINGS
+  (void)dispname;
+  (void)data;
+#endif
   if(Curl_cert_hostcheck(match_pattern, hostname)) {
     infof(data, " subjectAltName: host \"%s\" matched cert's \"%s\"\n",
                   dispname, match_pattern);
@@ -2082,6 +2086,7 @@ select_next_proto_cb(SSL *ssl,
 }
 #endif /* HAS_NPN */
 
+#ifndef CURL_DISABLE_VERBOSE_STRINGS
 static const char *
 get_ssl_version_txt(SSL *ssl)
 {
@@ -2108,6 +2113,7 @@ get_ssl_version_txt(SSL *ssl)
   }
   return "unknown";
 }
+#endif
 
 static CURLcode
 set_ssl_version_min_max(long *ctx_options, struct connectdata *conn,
@@ -3193,7 +3199,7 @@ static CURLcode servercert(struct connectdata *conn,
 {
   CURLcode result = CURLE_OK;
   int rc;
-  long lerr, len;
+  long lerr;
   struct Curl_easy *data = conn->data;
   X509 *issuer;
   BIO *fp = NULL;
@@ -3236,15 +3242,20 @@ static CURLcode servercert(struct connectdata *conn,
                          buffer, sizeof(buffer));
   infof(data, " subject: %s\n", rc?"[NONE]":buffer);
 
-  ASN1_TIME_print(mem, X509_get0_notBefore(BACKEND->server_cert));
-  len = BIO_get_mem_data(mem, (char **) &ptr);
-  infof(data, " start date: %.*s\n", len, ptr);
-  (void)BIO_reset(mem);
+#ifndef CURL_DISABLE_VERBOSE_STRINGS
+  {
+    long len;
+    ASN1_TIME_print(mem, X509_get0_notBefore(BACKEND->server_cert));
+    len = BIO_get_mem_data(mem, (char **) &ptr);
+    infof(data, " start date: %.*s\n", len, ptr);
+    (void)BIO_reset(mem);
 
-  ASN1_TIME_print(mem, X509_get0_notAfter(BACKEND->server_cert));
-  len = BIO_get_mem_data(mem, (char **) &ptr);
-  infof(data, " expire date: %.*s\n", len, ptr);
-  (void)BIO_reset(mem);
+    ASN1_TIME_print(mem, X509_get0_notAfter(BACKEND->server_cert));
+    len = BIO_get_mem_data(mem, (char **) &ptr);
+    infof(data, " expire date: %.*s\n", len, ptr);
+    (void)BIO_reset(mem);
+  }
+#endif
 
   BIO_free(mem);