configure; Also disable gssapi when krb5 is disabled.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>

configure

@@ -13654,6 +13654,8 @@ CPPFLAGS=$ac_save_CPPFLAGS
 test -z "$KRB5_CFLAGS" || KRB5_CFLAGS=`echo " $KRB5_CFLAGS" | sed 's/ -I\([^/]\)/ -I\$(top_builddir)\/\1/g'`
 test -z "$KRB5_LIBS" || KRB5_LIBS=`echo " $KRB5_LIBS" | sed 's/ -L\([^/]\)/ -L\$(top_builddir)\/\1/g'`
 
+else
+    with_gssapi=${with_gssapi:-no}
 fi
 if test "x$ac_cv_lib_soname_krb5" = "x"; then :
   case "x$with_krb5" in

configure.ac

@@ -1673,6 +1673,8 @@ then
          else
              KRB5_CFLAGS=""
          fi])
+else
+    with_gssapi=${with_gssapi:-no}
 fi
 WINE_NOTICE_WITH(krb5,[test "x$ac_cv_lib_soname_krb5" = "x"],
                  [libkrb5 ${notice_platform}development files not found, Kerberos won't be supported.])