Add option to build and install extensions.

CMakeLists.txt

@@ -360,6 +360,7 @@ install(TARGETS PythonQt
 install(FILES ${headers} DESTINATION ${PythonQt_INSTALL_INCLUDE_DIR})
 install(FILES ${headers_gui} DESTINATION ${PythonQt_INSTALL_INCLUDE_DIR}/gui)
 
+add_subdirectory(extensions)
 #-----------------------------------------------------------------------------
 # Testing
 

extensions/CMakeLists.txt

@@ -0,0 +1,23 @@
+option(PythonQt_Extensions "Build PythonQt extensions." OFF)
+
+if(PythonQt_Extensions)
+  if(NOT PythonQt_Wrap_QtAll)
+    MESSAGE(FATAL_ERROR "Cannot build PythonQt_QtAll without PythonQt_Wrap_QtAll set to ON")
+  endif(NOT PythonQt_Wrap_QtAll)
+  set(qtall_headers
+    PythonQt_QtAll/PythonQt_QtAll.h)
+
+  set(qtall_sources
+    PythonQt_QtAll/PythonQt_QtAll.cpp)
+
+  include_directories(generated_cpp${generated_cpp_suffix})
+
+  add_library(PythonQt_QtAll ${qtall_sources})
+  target_link_libraries(PythonQt_QtAll PythonQt)
+
+  install(TARGETS PythonQt_QtAll
+    RUNTIME DESTINATION ${PythonQt_INSTALL_RUNTIME_DIR}
+    LIBRARY DESTINATION ${PythonQt_INSTALL_LIBRARY_DIR}
+    ARCHIVE DESTINATION ${PythonQt_INSTALL_ARCHIVE_DIR})
+  install(FILES ${qtall_headers} DESTINATION ${PythonQt_INSTALL_INCLUDE_DIR})
+endif()