configure/features: Add feature and version info for GSS-API and SPNEGO

configure.ac

@@ -1248,7 +1248,7 @@ else
 fi
 if test x"$want_gss" = xyes; then
   AC_DEFINE(HAVE_GSSAPI, 1, [if you have GSS-API libraries])
-
+  HAVE_GSSAPI=1
   curl_gss_msg="enabled (MIT Kerberos/Heimdal)"
 
   if test -n "$gnu_gss"; then
@@ -3356,8 +3356,18 @@ fi
 if test "x$USE_WINDOWS_SSPI" = "x1"; then
   SUPPORT_FEATURES="$SUPPORT_FEATURES SSPI"
 fi
+
+if test "x$HAVE_GSSAPI" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES GSS-API"
+fi
+
+if test "x$CURL_DISABLE_CRYPTO_AUTH" != "x1" -a \
+    \( "x$HAVE_GSSAPI" = "x1" -o "x$USE_WINDOWS_SSPI" = "x1" \); then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES SPNEGO"
+fi
+
 if test "x$CURL_DISABLE_HTTP" != "x1" -a \
-	"x$CURL_DISABLE_CRYPTO_AUTH" != "x1"; then
+    "x$CURL_DISABLE_CRYPTO_AUTH" != "x1"; then
   if test "x$USE_SSLEAY" = "x1" -o "x$USE_WINDOWS_SSPI" = "x1" \
       -o "x$GNUTLS_ENABLED" = "x1" -o "x$NSS_ENABLED" = "x1" \
       -o "x$DARWINSSL_ENABLED" = "x1"; then
@@ -3374,9 +3384,6 @@ fi
 if test "x$USE_NGHTTP2" = "x1"; then
   SUPPORT_FEATURES="$SUPPORT_FEATURES HTTP2"
 fi
-if test "x$want_gss" = "xyes"; then
-  SUPPORT_FEATURES="$SUPPORT_FEATURES GSS-API"
-fi
 
 AC_SUBST(SUPPORT_FEATURES)
 

include/curl/curl.h

@@ -2234,7 +2234,7 @@ typedef struct {
 #define CURL_VERSION_GSSNEGOTIATE (1<<5) /* Negotiate auth support */
 #define CURL_VERSION_DEBUG     (1<<6)  /* built with debug capabilities */
 #define CURL_VERSION_ASYNCHDNS (1<<7)  /* asynchronous dns resolves */
-#define CURL_VERSION_SPNEGO    (1<<8)  /* SPNEGO auth */
+#define CURL_VERSION_SPNEGO    (1<<8)  /* SPNEGO auth is supported */
 #define CURL_VERSION_LARGEFILE (1<<9)  /* supports files bigger than 2GB */
 #define CURL_VERSION_IDN       (1<<10) /* International Domain Names support */
 #define CURL_VERSION_SSPI      (1<<11) /* SSPI is supported */
@@ -2243,6 +2243,7 @@ typedef struct {
 #define CURL_VERSION_TLSAUTH_SRP (1<<14) /* TLS-SRP auth is supported */
 #define CURL_VERSION_NTLM_WB   (1<<15) /* NTLM delegating to winbind helper */
 #define CURL_VERSION_HTTP2     (1<<16) /* HTTP2 support built-in */
+#define CURL_VERSION_GSSAPI    (1<<17) /* GSS-API is supported */
 
  /*
  * NAME curl_version_info()

lib/version.c

@@ -250,6 +250,12 @@ static curl_version_info_data version_info = {
 #if defined(USE_NTLM) && defined(NTLM_WB_ENABLED)
   | CURL_VERSION_NTLM_WB
 #endif
+#ifdef USE_SPNEGO
+  | CURL_VERSION_SPNEGO
+#endif
+#ifdef HAVE_GSSAPI
+  | CURL_VERSION_GSSAPI
+#endif
 #ifdef USE_WINDOWS_SSPI
   | CURL_VERSION_SSPI
 #endif

src/tool_help.c

@@ -262,10 +262,12 @@ static const struct feat feats[] = {
   {"IDN",            CURL_VERSION_IDN},
   {"IPv6",           CURL_VERSION_IPV6},
   {"Largefile",      CURL_VERSION_LARGEFILE},
+  {"SSPI",           CURL_VERSION_SSPI},
+  {"GSS-API",        CURL_VERSION_GSSAPI},
+  {"SPNEGO",         CURL_VERSION_SPNEGO},
   {"NTLM",           CURL_VERSION_NTLM},
   {"NTLM_WB",        CURL_VERSION_NTLM_WB},
   {"SSL",            CURL_VERSION_SSL},
-  {"SSPI",           CURL_VERSION_SSPI},
   {"krb4",           CURL_VERSION_KERBEROS4},
   {"libz",           CURL_VERSION_LIBZ},
   {"CharConv",       CURL_VERSION_CONV},