From 857b27e6161b5a010d61a88d0a7ebce6904db49f Mon Sep 17 00:00:00 2001
From: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Date: Wed, 23 Feb 2011 18:29:30 +0000
Subject: auto-detect the presence of farsight

---
 configure.ac | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/configure.ac b/configure.ac
index e46dac47e..cf1013191 100644
--- a/configure.ac
+++ b/configure.ac
@@ -176,14 +176,24 @@ PKG_CHECK_MODULES(EMPATHY_AV,
 AC_ARG_WITH(call,
             AC_HELP_STRING([--with-call], [build with Call interface support]),,
             [with_call=yes])
-if test "x$with_call" = "xyes" ; then
+if test "x$with_call" != "xno" ; then
    PKG_CHECK_MODULES(EMPATHY_CALL,
    [
       farsight2-0.10
       telepathy-farstream
-   ])
+   ], have_farstream="yes", have_farstream="no" )
+
+   if test "x$have_farstream" = "xyes"; then
+      AC_DEFINE(HAVE_CALL, 1, [Define if you have Call channel support])
+   fi
+else
+  have_farstream=no
+fi
+
+if test "x$with_call" = "xyes" -a "x$have_farstream" != "xyes"; then
+   AC_MSG_ERROR([Could not find Call handler dependencies.])
 fi
-AM_CONDITIONAL(HAVE_CALL, test "x$with_call" = "xyes")
+AM_CONDITIONAL(HAVE_CALL, test "x$have_farstream" = "xyes")
 
 # -----------------------------------------------------------
 # evolution-data-server (about-me)
@@ -583,4 +593,5 @@ Configure summary:
     Extras:
 	Nautilus-sendto plugin......:  ${have_nst}
 	Salut E-D-S support.........:  ${with_eds}
+	Exp. Call channel handler...:  ${have_farstream}
 "
-- 
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