11/20/2023 0 Comments Cmake targetIf the argument is an absolute path, a file-level dependency Additionally, if the target is anĮxecutable or library, a file-level dependency is created toĬause the custom command to re-run whenever the target is If the argument is the name of a target (created by theĪdd_custom_target(), add_executable(), orĪdd_library() command) a target-level dependency isĬreated to make sure the target is built before any target Specify files on which the command depends. New in version 3.26: Arguments to COMMENT may use Options are currently ignored when APPEND is given, but may be The COMMENT, MAIN_DEPENDENCY, and WORKING_DIRECTORY The appended commands and dependencies apply to all configurations. The output specified by the current call must match in at least oneĬonfiguration after evaluating generator expressions. If the previous call specified the output via a generator expression, There must have alreadyīeen a previous call to this command with the same output. See theĮxample: Generating Files for Multiple Targets below.Īppend the COMMAND and DEPENDS option values to the customĬommand for the first output specified. Instead, use the add_custom_target() command to drive theĬommand and make the other targets depend on that one. May build in parallel or the instances of the rule may conflict. Is given a rule to generate the file using the command at build time.ĭo not list the output in more than one independent target that That specifies any output of the custom command as a source file This defines a command to generate specified OUTPUT file(s).Ī target created in the same directory ( CMakeLists.txt file) The enable_testing() command will cause a global test target to be defined, which would then clash with the one you’ve tried to define in the add_executable() call.Add_custom_command( OUTPUT output1 COMMAND command1. That target name is reserved for CMake’s own use. I should also mention that you should not call any targets you define “test”. That may be feasible for smaller projects, but for large projects with many executables (including test executables), that may not be appropriate. Many projects dump all DLLs and executables in the same output directory so that their users don’t have to deal with it. How you run things is something CMake can’t control, so it’s up to you to get that right. Either the DLL has to be in the same directory as the executable, or it has to be found in one of the directories specified by the PATH environment variable. When running the executable, that’s a different story. Sorry it has taken me so long to reply here, but are you talking about building or running your executable here? Building it shouldn’t require you to force the DLL for mdp_opt to be in the same directory as the test executable. What is more important is that with this change, it only works if I copy the file mdp_opt.dll from build/圆4-debug/mdp_opt to build/圆4-debug/test. I halfway understand why, but let’s forget that. post-build), what is the preferred way to deal with this in a cross-platform way? So if the answer is that this somehow does not work and that some manual copying is needed (e.g. That I intend to link the output associated with the target mdp_opt with the test executable? Also, in my reading of the above resource, my understanding is that the executable will convert to a path? Anyhow? Because CMake handles all the various platformĭifferences and paths on the project’s behalf, using a CMake target name is generally the When generating the linker command, including supplying any prefix or suffix to the file CMake will convert this to a path to the built library Just the library name without a path, usually also without any platform-specific file name.A path to a library, usually specified as an absolute path.Each library listed can be one of the following: Property INTERFACE_LINK_LIBRARIES is supported. It is initiallyĮmpty when the target is created and it supports generator expressions. This target property holds a list of all libraries the target should link to directly. In the book “professional CMake”, I read ( emphasis mine): I can do that - it is not a problem - but I don’t understand why? When it is marked SHARED (as in above), I need to add: This works fine if the library is marked STATIC (instead of SHARED as above). Target_link_libraries(test PRIVATE mdp_opt) I create a shared library like so:Īdd_library (mdp_opt SHARED librarycomponent.cpp) I am trying to figure out how CMake is supposed to work for shared libraries.
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