[gstreamermm] Fix the distcheck.

[Josà Alburquerque <jaalburqu src gnome org>]

commit 032cfd97be9581da4676473277b2437177d36926
Author: Josà Alburquerque <jaalburqu svn gnome org>
Date:   Sun Feb 19 18:18:20 2012 -0500

    Fix the distcheck.
    
    	* tests/test-plugin-signals.cc: Add an include to fix the build.

 ChangeLog                    |    6 ++++++
 tests/test-plugin-signals.cc |    1 +
 2 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 81f7557..a1dc3d8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2012-02-19  Josà Alburquerque  <jaalburquerque gmail com>
 
+	Fix the distcheck.
+
+	* tests/test-plugin-signals.cc: Add an include to fix the build.
+
+2012-02-19  Josà Alburquerque  <jaalburquerque gmail com>
+
 	Allow the build to succeed for MinGW32.
 
 	* configure.ac: Add logic to define the GSTREAMERMM_STATIC_LIB macro
diff --git a/tests/test-plugin-signals.cc b/tests/test-plugin-signals.cc
index 519dc48..f95fb6b 100644
--- a/tests/test-plugin-signals.cc
+++ b/tests/test-plugin-signals.cc
@@ -17,6 +17,7 @@
  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <glibmm.h>
 #include <gstreamermm.h>
 #include <gstreamermm/fakesrc.h>
 #include <gstreamermm/fakesink.h>