From 196f4193bdfe0b53644509bf85a60d447420572c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20G=2E=20Aragoneses?= <knocte@gmail.com>
Date: Mon, 20 Jan 2014 18:27:04 +0100
Subject: [PATCH] configure: if gtk is not found, advice about --disable-gui

With this, user will know that he can build without the GUI features
if she wants.
---
 configure.ac | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 8a05636b..9113c226 100644
--- a/configure.ac
+++ b/configure.ac
@@ -62,7 +62,12 @@ AC_ARG_ENABLE(docs,
 AM_CONDITIONAL(ENABLE_DOCS, test x$enable_docs = xyes)
 
 if test "x$enable_gui" = "xyes"; then
-	PKG_CHECK_MODULES([GTK_SHARP_20], [gtk-sharp-2.0])
+	PKG_CHECK_MODULES([GTK_SHARP_20], [gtk-sharp-2.0],
+		has_gtk=yes, has_gtk=no)
+
+	if test "x$has_gtk" = "xno"; then
+		AC_MSG_ERROR([gtk is needed for GUI features, install it or use --disable-gui])
+	fi
 fi
 
 if test "x$enable_tests" = "xyes"; then