cmake

I guess you didn’t configure your project. You first need to run cmake . at the project root to generate build files. You can also run it from an empty directory to separate source and build files. Then you can use cmake –build ./ in the build dir. Or, if you prefer code-only: cd [root-directory-of-your-project] … Read more

The LIBRARY_OUTPUT_DIRECTORY target property specifies the directory where library target files will be built. set_target_properties(JE3D PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/out/library) If all the libraries are in one directory, I find it more convenient to set the CMAKE_LIBRARY_OUTPUT_DIRECTORY variable, which is used to initialize the LIBRARY_OUTPUT_DIRECTORY property when creating a target. set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/out/library) Edit: Check comments if your … Read more

CMake has a target_link_options starting from version 3.13 that does exactly that. target_link_options(<target> [BEFORE] <INTERFACE|PUBLIC|PRIVATE> [items1…] [<INTERFACE|PUBLIC|PRIVATE> [items2…] …]) target_link_options documentation

You should use add_custom_target instead and add_dependencies to make your normal target depend on it: add_custom_target( myCustomTarget COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/mk_config_h.py ${CMAKE_CURRENT_BINARY_DIR}/config.h ) add_dependencies(myTarget myCustomTarget) This should ensure that the command is run before compiling the sources of myTarget.

MATH(EXPR VAR “${VAR}+1”) CMake documentation

You can use add_library() and tell that it actually imported. Then, using set_target_properties() you can set required INTERFACE_XXX properties for it. After that, you can use it as an ordinal target like every other built by your project.

To provide multiple paths in the CMAKE_PREFIX_PATH variable you need to delimit each entry by ;(semicolon). So your command will look like: cmake -DCMAKE_PREFIX_PATH=”C:\Qt\5.5\msvc2013\lib\cmake;C:\protobuf\src;C:\protobuf\c‌​make\build\Release” To check if everything alright with the provided paths you can use the following code in the cmake file: foreach(path ${CMAKE_PREFIX_PATH}) message(“Path: ” ${path}) endforeach(path) It will print every path provided.