Implemented message source block for unit testing
diff --git a/grc/misc_utils/CMakeLists.txt b/grc/misc_utils/CMakeLists.txt
index 5a3f874..403a321 100644
--- a/grc/misc_utils/CMakeLists.txt
+++ b/grc/misc_utils/CMakeLists.txt
@@ -29,5 +29,6 @@
     gsm_burst_sink.xml
     gsm_burst_source.xml
     gsm_burst_source_qa.xml
-    gsm_burst_sink_qa.xml DESTINATION share/gnuradio/grc/blocks
+    gsm_burst_sink_qa.xml 
+    gsm_message_source.xml DESTINATION share/gnuradio/grc/blocks
 )