From 1af18d2ab02c55802be831190b60092ee8c656f0 Mon Sep 17 00:00:00 2001
From: Michael Tremer <michael.tremer@ipfire.org>
Date: Mon, 10 May 2010 22:07:25 +0200
Subject: [PATCH] configure: Allow to disable build of tools that require GTK.

---
 Makefile.am  |  2 ++
 configure.ac | 16 +++++++++++++---
 2 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index f475e98..f773b73 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -41,9 +41,11 @@ AM_CPPFLAGS = \
 sbin_PROGRAMS = \
 	systemd
 
+if HAVE_GTK
 bin_PROGRAMS = \
 	systemctl \
 	systemadm
+endif
 
 pkglibexec_PROGRAMS = \
 	systemd-logger \
diff --git a/configure.ac b/configure.ac
index c37ab0c..a0f3aad 100644
--- a/configure.ac
+++ b/configure.ac
@@ -63,9 +63,19 @@ PKG_CHECK_MODULES(DBUSGLIB, [ dbus-glib-1 ])
 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])], )
-- 
2.47.2