Added new target 'make distclean' to clean PCH files

PCH files are now rebuilt only when needed

CMakeLists.txt

@@ -137,7 +137,8 @@ if(CMAKE_BUILD_TYPE MATCHES Debug OR CMAKE_BUILD_TYPE MATCHES DebugFull)
     ## Set the libraries outout directory
     set( CL_BIN_DIR bin_debug)
     set( CL_LIB_DIR lib_debug)
-
+    add_custom_target(distclean COMMAND cd ${CL_SRC_ROOT}/PCH && $(MAKE) type=debug clean )
+
     set( CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CL_SRC_ROOT}/${CL_LIB_DIR}" )
     set( CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CL_SRC_ROOT}/${CL_BIN_DIR}" )
     set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CL_SRC_ROOT}/${CL_LIB_DIR}" )
@@ -161,6 +162,7 @@ else ()
 
     set( CL_PCH_FILE "${CL_SRC_ROOT}/PCH/precompiled_header_release.h")
     set( CL_PCH_TARGET "precompiled_header_release.h.gch")
+    add_custom_target(distclean COMMAND cd ${CL_SRC_ROOT}/PCH && $(MAKE) type=release clean )
 
     ## Set the libraries outout directory
     set( CL_BIN_DIR bin)

PCH/CMakeLists.txt

@@ -9,13 +9,15 @@ if ( CMAKE_BUILD_TYPE MATCHES Debug OR CMAKE_BUILD_TYPE MATCHES DebugFull )
     add_custom_target (
         ${CL_PCH_TARGET} ALL
         DEPENDS "${CL_PCH_FILE}"
-        COMMAND ${CMAKE_CXX_COMPILER} `wx-config --cflags --debug=yes` -O0 -g -fPIC -c ${CL_PCH_FILE}
+        COMMAND "$(MAKE)" type=debug
+        WORKING_DIRECTORY ${CL_SRC_ROOT}/PCH
      )
 else()
     add_custom_target (
         ${CL_PCH_TARGET} ALL
         DEPENDS "${CL_PCH_FILE}"
-        COMMAND ${CMAKE_CXX_COMPILER} `wx-config --cflags --debug=no` -O3 -DNDEBUG -fPIC -c ${CL_PCH_FILE}
+        COMMAND "$(MAKE)" type=release
+        WORKING_DIRECTORY ${CL_SRC_ROOT}/PCH
      )
 endif()
 

PCH/Makefile

@@ -0,0 +1,22 @@
+ifeq ($(type),release)
+  WX_COMMAND=`wx-config --cflags --debug=no`
+  FLAGS=-O2 -DNDEBUG -fPIC
+  TARGET=precompiled_header_release.h.gch
+else
+  WX_COMMAND=`wx-config --cflags --debug=no`
+  FLAGS=-g -O0 -fPIC
+  TARGET=precompiled_header_dbg.h.gch
+endif
+
+all: $(TARGET)
+
+precompiled_header_dbg.h.gch: precompiled_header_dbg.h
+	@echo -- Building PCH file precompiled_header_dbg.h.gch
+	$(CXX) $(FLAGS) $(CFLAGS) $(WX_COMMAND) -c precompiled_header_dbg.h -o precompiled_header_dbg.h.gch
+
+precompiled_header_release.h.gch: precompiled_header_release.h
+	@echo -- Building PCH file precompiled_header_release.h.gch
+	$(CXX) $(FLAGS) $(CFLAGS) $(WX_COMMAND) -c precompiled_header_release.h -o precompiled_header_release.h.gch
+
+clean:
+	$(RM) -f $(TARGET)