From 3e8cab348e37b9879fa558e56e05069987c6c65a Mon Sep 17 00:00:00 2001
From: monsta <monsta@inbox.ru>
Date: Wed, 18 Jan 2017 15:55:22 +0300
Subject: build: check stricter for presence of xtrans

this should ensure that mate-session won't listen to TCP ports.
if needed, this check can be disabled using --without-xtrans option.

fixes https://github.com/mate-desktop/mate-session-manager/issues/131

adapted from:
https://git.gnome.org/browse/gnome-session/commit/?id=aa4c9d125012ae94154ce075d62342b63b41a7d9
---
 configure.ac | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 02bb9be..7b705d3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -243,12 +243,18 @@ fi
 AC_SUBST(EXECINFO_LIBS)
 
 dnl ====================================================================
-dnl Check for newish X interface
+dnl Check for X transport interface - allows to disable ICE Transports
+dnl See also https://bugzilla.gnome.org/show_bug.cgi?id=725100
 dnl ====================================================================
-oCFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $X_CFLAGS"
-AC_CHECK_HEADERS(X11/Xtrans/Xtrans.h)
-CFLAGS="$oCFLAGS"
+AC_ARG_WITH([xtrans],
+	    [AS_HELP_STRING([--without-xtrans],
+			   [Build without xtrans support (results in ICE listening on remote TCP ports)])],
+	    [],
+	    [with_xtrans=yes])
+AS_IF([test "$with_xtrans" != "no"],
+      [PKG_CHECK_MODULES(XTRANS, xtrans,
+      [AC_DEFINE(HAVE_XTRANS, 1, [Have the X Transport library])])])
+AC_SUBST(HAVE_XTRANS)
 
 dnl ====================================================================
 dnl Code for checking whether IPv6 is enabled on the system....
-- 
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