AC_SUBST(DBUSGLIB_CFLAGS)
AC_SUBST(DBUSGLIB_LIBS)
-PKG_CHECK_MODULES(GTK, [ gtk+-2.0 ])
-AC_SUBST(GTK_CFLAGS)
-AC_SUBST(GTK_LIBS)
+have_gtk=no
+AC_ARG_ENABLE(gtk, AS_HELP_STRING([--disable-gtk], [disable GTK tools]))
+if test "x$enable_gtk" != "xno"; then
+ PKG_CHECK_MODULES(GTK, [ gtk+-2.0 ]
+ [AC_DEFINE(HAVE_GTK, 1, [Define if GTK is available]) have_gtk=yes],
+ have_gtk=no)
+ AC_SUBST(GTK_CFLAGS)
+ AC_SUBST(GTK_LIBS)
+ if test "x$have_gtk" = xno -a "x$enable_gtk" = xyes; then
+ AC_MSG_ERROR([gtk support requested but libraries not found])
+ fi
+fi
+AM_CONDITIONAL(HAVE_GTK, [test "$have_gtk" = "yes"])
PKG_CHECK_MODULES( CGROUP, [ libcgroup >= 0.35 ], [],
[AC_CHECK_HEADER( [libcgroup.h], [], [AC_MSG_ERROR([*** libcgroup.h not found])], )