Qwt check for GUI app.

CMakeLists.txt

@@ -22,7 +22,7 @@
 # Project setup
 ########################################################################
 cmake_minimum_required(VERSION 2.6)
-project(gr-gr-air-modes CXX)
+project(gr-air-modes CXX)
 enable_testing()
 
 #select the release build type by default to get optimization flags

res/CMakeLists.txt

@@ -31,6 +31,12 @@ if(NOT PYQT4_FOUND)
     return()
 endif()
 
+find_package(Qwt)
+if(NOT QWT_FOUND)
+    message(STATUS "Qwt not found, not installing GUI application")
+    return()
+endif()
+
 
 set(PYUIC4_COMPILE pyuic4)
 set(RX_UI_SRC ${CMAKE_CURRENT_SOURCE_DIR}/modes_rx.ui)