[gnome-system-monitor] Mark the WNCK feature as broken.

[Benoît Dejean <bdejean src gnome org>]

commit ffe597e58402b0dfc59bb33ebd92d2ca0dd359de
Author: Benoît Dejean <bdejean gmail com>
Date:   Sun Feb 19 08:30:32 2017 +0100

    Mark the WNCK feature as broken.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=778776

 configure.ac |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 6b5a2d8..293e424 100644
--- a/configure.ac
+++ b/configure.ac
@@ -55,7 +55,7 @@ PKG_CHECK_MODULES(GSM,
 AC_PATH_PROG(APPDATA_VALIDATE, appdata-validate)
 AC_PATH_PROG(DESKTOP_FILE_VALIDATE, desktop-file-validate)
 
-AC_ARG_ENABLE(wnck, AS_HELP_STRING([--enable-wnck], [enable wnck 
support]),enable_wnck="$enableval",enable_wnck=no)
+AC_ARG_ENABLE(wnck, AS_HELP_STRING([--enable-broken-wnck], [enable wnck support, this will likely make 
system-monitor segfault]),enable_wnck="$enableval",enable_wnck=no)
 if test "x$enable_wnck" != "xno"; then
         PKG_CHECK_MODULES(WNCK, libwnck-3.0 >= $LIBWNCK_REQUIRED gdk-x11-3.0)
         AC_DEFINE(HAVE_WNCK, 1, [Define if libwnck is available])
@@ -141,5 +141,5 @@ Configuration:
         CXXFLAGS:               ${CXXFLAGS}
         Maintainer mode:        ${USE_MAINTAINER_MODE}
         systemd support:        ${have_systemd}
-        wnck support:           ${enable_wnck}
+        wnck support:           ${enable_wnck} (this will likely make system-monitor segfault)
 "