I am developing platform support for an embedded target (Z8 Encore!), and it mostly works – but I’d like to make it easier to set the compiler and linker flags, as there’s a ton of them: and they are nothing like GNU flags, so they only apply when building for that particular target.
Thus a question: is there a preferred way for the user to set platform-specific flags without having to know them exactly? I’m thinking of having some sort of platform-agnostic means of selecting compile and link flags, and then translating those for the platform the target is generated for. Specifically, I want to avoid having the following in CMakeLists for the project: if("${COMPILER_ID}" strequal "ez8cc") target_compile_options(target1 PRIVATE -const:RAM) elseif("${COMPILER_ID}" strequal "gcc" and "${CMAKE_SYSTEM_PROCESSOR}" strequal "somecpu") target_compile_definitions(target1 PRIVATE ram rom far near) # those shall be empty endif() I’d like to do something like this instead: set_target_properties(target1 PROPERTIES OPT_CONST RAM OPT_PACK TIGHT …) Then, a process_target_opts() function called at the end of CMakeLists would iterate the targets, and for each target call process_${COMPILER_ID}_opts() (if such function would be present or issue a warning otherwise). That function then converts the OPT_ options to platform-specific flags, based on cpu and/or compiler. Is it something that would be more-or-less idiomatic, or is there another preferred way of doing it? I really don’t want to list the options manually for each target/platform combo, as they’d differ quite a bit, and I have lots of targets (hundreds). I’d appreciate any hints. Cheers, Kuba Ober -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: https://cmake.org/mailman/listinfo/cmake