COMP: use Qt imported targets for better isolation in target_link_libraries

CMakeLists.txt

@@ -51,10 +51,15 @@ else(OTB_FOUND)
 endif(OTB_FOUND)
 
 #----------------------------------------------------------------------------
-# Qt4
+# OpenGL (needed by Qt4)
 find_package( OpenGL REQUIRED )
+
+#----------------------------------------------------------------------------
+# Qt4
+set(QT_USE_IMPORTED_TARGETS ON)
 find_package( Qt4 REQUIRED QtCore QtGui QtOpenGL QtMain QtXml )
 include( ${QT_USE_FILE} )
+message( "${QT_QTOPENGL_LIBRARY}" )
 
 #----------------------------------------------------------------------------
 # Include OTB CMake modules path.

Code/Application/Viewer/CMakeLists.txt

@@ -75,15 +75,14 @@ endif()
 # The library is also used in tests, waiting for a better test strategy
 # The library is not installed
 
-add_library(Monteverdi2_Application
+add_library( Monteverdi2_Application
   STATIC
   ${Application_SOURCES}
   ${Application_FORMS_HEADERS}
   ${Application_SRC_MOC}
 )
-target_link_libraries(Monteverdi2_Application
+target_link_libraries( Monteverdi2_Application
   Monteverdi2_Common
-  ${QT_LIBRARIES}
 )
 
 #############################################################################
@@ -98,7 +97,6 @@ add_executable( mvd2-viewer
 target_link_libraries( mvd2-viewer
   Monteverdi2_Application
   Monteverdi2_Common
-  ${QT_LIBRARIES}
 )
 
 deploy_qt_conf( mvd2-viewer )

Code/Common/CMakeLists.txt

@@ -111,6 +111,10 @@ target_link_libraries(Monteverdi2_Common
   OTBIO
   ${OPENGL_LIBRARIES}
   ${QT_LIBRARIES}
+  Qt4::QtCore
+  Qt4::QtGui
+  Qt4::QtOpenGL
+  Qt4::QtXml
 )
 
 set_target_properties(Monteverdi2_Common