don't output -DwxUSE_GUI=0 in monolithic build, setup.h will take care of setting it correctly

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@28713 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wx-config.in

@@ -248,6 +248,7 @@ else
 fi
 
 # determine if at least one gui lib was used:
+if test "$is_monolithic" = "0" ; then
   nogui_flag="yes"
   for i in $libs_list; do
     case $i in
@@ -258,6 +259,9 @@ for i in $libs_list; do
           ;;
     esac
   done
+else
+  nogui_flag="no"
+fi
 
 
 # handle options: