suppress output of wx-config --static to fix problems introduced by wx-config rewrite

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@30561 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxwin.m4

@@ -167,7 +167,7 @@ AC_DEFUN([AM_PATH_WXCONFIG],
       dnl what the user actually wants, making this redundant at best.
       dnl For now keep it in case anyone actually used it in the past.
       AC_MSG_CHECKING([for wxWindows static library])
-      WX_LIBS_STATIC=`$WX_CONFIG_WITH_ARGS --static --libs`
+      WX_LIBS_STATIC=`$WX_CONFIG_WITH_ARGS --static --libs 2>&1 > /dev/null`
       if test -n "$WX_LIBS_STATIC"; then
         AC_MSG_RESULT(yes)
       fi