CMake can only handle one compiler at a time. So – if you don’t go the long way to set up the other compiler as a new language – you will end up with two configuration cycles. I see the following approaches to automate this process: Taking the example “CMake Cross Compiling – Using executables … Read more
Since CMake 3.8, there is the VS_DEBUGGER_WORKING_DIRECTORY target property, which allows you to set the debugger working directory for a target in Visual Studio. Usage example: set_property(TARGET MyTarget PROPERTY VS_DEBUGGER_WORKING_DIRECTORY “${CMAKE_SOURCE_DIR}/bin”)
The crux of the problem is needing mycomp to be available when CMake is run so that the generated CMakeLists.txt files can be created and then pulled in with add_subdirectory(). A possible way to achieve this is to use execute_process() to run a nested cmake-and-build from the main build. That nested cmake-and-build would use the … Read more
Because you’re downloading the external project, you already know where everything is because you just downloaded it, so it doesn’t need ‘finding’. I got it working with add_library. This is my actual code that works: ExternalProject_Add(ForexConnectDownload PREFIX 3rd_party #–Download step————– URL http://fxcodebase.com/bin/forexconnect/1.3.1/ForexConnectAPI-1.3.1-Linux-x86_64.tar.gz URL_HASH SHA1=7fdb90a2d45085feb8b76167cae419ad4c211d6b #–Configure step————- CONFIGURE_COMMAND “” #–Build step—————– BUILD_COMMAND “” #–Install step————— UPDATE_COMMAND … Read more
Your wish has been out there for a while and is – as far as I know – not yet (as for CMake 3.3.2) embedded into CMake itself (see 0012435: Possibility to get all link libraries for a target?). I got some hope because this ticket lists a few possible alternative approaches. But after I … Read more
Use this macro: MACRO(SUBDIRLIST result curdir) FILE(GLOB children RELATIVE ${curdir} ${curdir}/*) SET(dirlist “”) FOREACH(child ${children}) IF(IS_DIRECTORY ${curdir}/${child}) LIST(APPEND dirlist ${child}) ENDIF() ENDFOREACH() SET(${result} ${dirlist}) ENDMACRO() Example: SUBDIRLIST(SUBDIRS ${MY_CURRENT_DIR}) Use foreach: FOREACH(subdir ${SUBDIRS}) ADD_SUBDIRECTORY(${subdir}) ENDFOREACH()
In our projects we use a “simple” way of yours – add_library with both headers and sources. If you add only sources, then you won’t see headers in IDE-generated project. However, when installing, we have to do it like that, using two install commands: install(TARGETS library_name LIBRARY DESTINATION lib) install(FILES ${PUBLIC_HEADERS} DESTINATION include/library_name) If you … Read more
You can use the get_property command to retrieve the value of the directory property INCLUDE_DIRECTORIES Something like this: get_property(dirs DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY INCLUDE_DIRECTORIES) foreach(dir ${dirs}) message(STATUS “dir=”${dir}””) endforeach() The value of this directory property only tracks the include_directories commands that have occurred previously in the same CMakeLists file, or that have been inherited from previous … Read more
OK, I figured it out: this is much more painful than it should be. Until very recently, people at Kitware didn’t understand why anyone would ever want to create a DLL from static libs. Their argument is that there should always be source files in the main (e.g. top_project in my case) directory because it … Read more
You can also use the inverted approach and exclude all compilers you don’t want with CMAKE_IGNORE_PATH. It takes a list of paths to ignore, but be aware that it needs to be an exact string match. The advantage would be that you can declare those directly from the command line. So what I did is … Read more