[CMake] Different targets for different configurations

[Mike Krus]

Hi

I would like run a script with different options for debug and release 
builds. I can do this easily for Makefiles but am struggling to get it 
to work for Visual Studio.

I basically:
- add a custom command the output of which depends on the configuration
- add a custom target for that command
- add that target as a dependency of my other targets (I want the
   script to run first)

Here's the CMake code below...


My problem is that for Visual Studio ${CMAKE_BUILD_TYPE} is not set 
(normal) and CMake doesn't know about $(CONFIGURATION) since it's a 
build time thing (again, normal).
So as it stands, the scripts always runs at every build because it's not 
picking up the correct output file.

Any suggestions on how I should go about to make this work?
I was looking for a way of specifying different dependencies for 
different configurations (a bit like TARGET_LINK_LIBRARIES lets me
specify different libs)


Cheers,


Mike


ADD_CUSTOM_COMMAND(
	OUTPUT 
${PROJECT_BINARY_DIR}/${CMAKE_BUILD_TYPE}$(CONFIGURATION)setupdone.txt
	COMMENT "Preparing build environment"
	COMMAND ${PYTHON_EXECUTABLE} ${PROJECT_BINARY_DIR}/SetupScript.py
		--build-type=${CMAKE_BUILD_TYPE}$(CONFIGURATION)
		--debug-dir=${LIBRARY_OUTPUT_PATH_DEBUG}
		--release-dir=${LIBRARY_OUTPUT_PATH_RELEASE}
	 
--output=${PROJECT_BINARY_DIR}/${CMAKE_BUILD_TYPE}$(CONFIGURATION)setupdone.txt
	DEPENDS ${PROJECT_BINARY_DIR}/SetupScript.py
	WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
)
ADD_CUSTOM_TARGET(MoveBuildSetup DEPENDS 
${PROJECT_BINARY_DIR}/${CMAKE_BUILD_TYPE}$(CONFIGURATION)setupdone.txt)

And I add the MoveBuildSetup as a dependency to others..


-- 
Mike Krus (PhD) - Principal Software Engineer

Midland Valley Exploration
144 West George Street
Glasgow G2 2HG, UK
Tel: +44 141 332 2681
Fax: +44 141 332 6792