diff -r b10219ef05d3 -r f3ba33d5d2b1 QTfrontend/CMakeLists.txt
--- a/QTfrontend/CMakeLists.txt	Thu Nov 29 14:48:38 2012 -0500
+++ b/QTfrontend/CMakeLists.txt	Thu Nov 29 19:44:18 2012 -0500
@@ -20,6 +20,9 @@
 find_package(SDL_net REQUIRED)   #network frontlib
 if(NOT NOVIDEOREC)
     find_package(FFMPEG)
+    if(${FFMPEG_FOUND})
+        add_definitions(-DUSE_VIDEO_RECORDING)
+    endif()
 endif()
 
 include_directories(.)