ENH: add -D options for qt stuff

Modules/UseQt4.cmake

@@ -15,6 +15,7 @@ SET(QT_LIBRARIES "")
 IF (NOT QT_DONT_USE_QTCORE)
   IF (QT_QTCORE_FOUND)
     INCLUDE_DIRECTORIES(${QT_QTCORE_INCLUDE_DIR})
+    ADD_DEFINITIONS(-DQT_CORE_LIB)
     IF (CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE)
       SET(QT_LIBRARIES ${QT_LIBRARIES}
         optimized "${QT_QTCORE_LIBRARY}"
@@ -36,6 +37,7 @@ ENDIF (NOT QT_DONT_USE_QTCORE)
 IF (NOT QT_DONT_USE_QTGUI)
   IF (QT_QTGUI_FOUND)
     INCLUDE_DIRECTORIES(${QT_QTGUI_INCLUDE_DIR})
+    ADD_DEFINITIONS(-DQT_GUI_LIB)
     IF (CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE)
       SET(QT_LIBRARIES ${QT_LIBRARIES}
         optimized "${QT_QTGUI_LIBRARY}"
@@ -122,6 +124,7 @@ ENDIF (QT_USE_QTMOTIF)
 IF (QT_USE_QTNETWORK)
   IF (QT_QTNETWORK_FOUND)
     INCLUDE_DIRECTORIES(${QT_QTNETWORK_INCLUDE_DIR})
+    ADD_DEFINITIONS(-DQT_NETWORK_LIB)
     IF (CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE)
       SET(QT_LIBRARIES ${QT_LIBRARIES}
         optimized "${QT_QTNETWORK_LIBRARY}"
@@ -154,6 +157,7 @@ ENDIF (QT_USE_QTNSPLUGIN)
 IF (QT_USE_QTOPENGL)
   IF (QT_QTOPENGL_FOUND)
     INCLUDE_DIRECTORIES(${QT_QTOPENGL_INCLUDE_DIR})
+    ADD_DEFINITIONS(-DQT_OPENGL_LIB)
     IF (CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE)
       SET(QT_LIBRARIES ${QT_LIBRARIES}
         optimized "${QT_QTOPENGL_LIBRARY}"
@@ -170,6 +174,7 @@ ENDIF (QT_USE_QTOPENGL)
 IF (QT_USE_QTSQL)
   IF (QT_QTSQL_FOUND)
     INCLUDE_DIRECTORIES(${QT_QTSQL_INCLUDE_DIR})
+    ADD_DEFINITIONS(-DQT_SQL_LIB)
     IF (CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE)
       SET(QT_LIBRARIES ${QT_LIBRARIES}
         optimized "${QT_QTSQL_LIBRARY}"
@@ -186,6 +191,7 @@ ENDIF (QT_USE_QTSQL)
 IF (QT_USE_QTXML)
   IF (QT_QTXML_FOUND)
     INCLUDE_DIRECTORIES(${QT_QTXML_INCLUDE_DIR})
+    ADD_DEFINITIONS(-DQT_XML_LIB)
     IF (CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE)
       SET(QT_LIBRARIES ${QT_LIBRARIES}
         optimized "${QT_QTXML_LIBRARY}"
@@ -198,3 +204,4 @@ IF (QT_USE_QTXML)
     MESSAGE("QtXml library not found.")
   ENDIF (QT_QTXML_FOUND)
 ENDIF (QT_USE_QTXML)
+