CMake variable or property to discern betwen debug and release builds

build-processcmakevisual c++

I want to set a CMake variable differently for debug and release builds. I have tried to use CMAKE_CFG_INTDIR like this:

IF(${CMAKE_CFG_INTDIR} STREQUAL "Debug")
    SET(TESTRUNNER DllPlugInTesterd_dll)
ELSE(${CMAKE_CFG_INTDIR} STREQUAL "Debug")
    SET(TESTRUNNER DllPlugInTester_dll)
ENDIF(${CMAKE_CFG_INTDIR} STREQUAL "Debug")

But this variable evaluates to $(OUTDIR) at the time CMake does its thing.

Is there a CMake variable I can use to discern between debug and release builds, or something along the lines of how TARGET_LINK_LIBRARIES where one can specify debug and optimized libraries?

EDIT: I cannot use CMAKE_BUILD_TYPE since this is only supported by make based generators and I need to get this working with Visual Studio.

Best Answer

Try to use CMAKE_BUILD_TYPE instead

Related Solutions

C++ – Linking different libraries for Debug and Release builds in Cmake on windows

According to the CMake documentation:

target_link_libraries(<target> [lib1 [lib2 [...]]] [[debug|optimized|general] <lib>] ...)

A "debug", "optimized", or "general" keyword indicates that the library immediately following it is to be used only for the corresponding build configuration.

So you should be able to do this:

add_executable( MyEXE ${SOURCES})

target_link_libraries( MyEXE debug 3PDebugLib)
target_link_libraries( MyEXE optimized 3PReleaseLib)

C++ – Debug vs Release in CMake

With CMake, it's generally recommended to do an "out of source" build. Create your CMakeLists.txt in the root of your project. Then from the root of your project:

mkdir Release
cd Release
cmake -DCMAKE_BUILD_TYPE=Release ..
make

And for Debug (again from the root of your project):

mkdir Debug
cd Debug
cmake -DCMAKE_BUILD_TYPE=Debug ..
make

Release / Debug will add the appropriate flags for your compiler. There are also RelWithDebInfo and MinSizeRel build configurations.

You can modify/add to the flags by specifying a toolchain file in which you can add CMAKE_<LANG>_FLAGS_<CONFIG>_INIT variables, e.g.:

set(CMAKE_CXX_FLAGS_DEBUG_INIT "-Wall")
set(CMAKE_CXX_FLAGS_RELEASE_INIT "-Wall")

See CMAKE_BUILD_TYPE for more details.

As for your third question, I'm not sure what you are asking exactly. CMake should automatically detect and use the compiler appropriate for your different source files.

Best Answer

Related Solutions

C++ – Linking different libraries for Debug and Release builds in Cmake on windows

C++ – Debug vs Release in CMake

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