[CMake] CMakeLists.txt in different place than source

[Andrew White]

J Decker wrote:

You can define a variable to define the base of the sources....

set( SOURCE_ROOT /some/path )



could be set relative to the current cmake path per cmake that uses those

souces... and then just prefix it



add_library(my_lib

        ${SOURCE_ROOT}/src/a.c

        ${SOURCE_ROOT}/include/a.h

)



Thanks, but that’s approximately exactly what I’m trying to avoid doing.  I cheat a little, in that I have a macro that will prepend a prefix to every element of a list.  My motivation is avoiding situations where I add the prefix to the files but forget to add the prefix when I call target_include_directories or suchlike.



I’m not sure anything trickier is workable in the CMake model, however.  For example, hacking CMAKE_CURRENT_SOURCE_DIR might make sense for file paths, but if I then call add_subdirectory should it be rooted at the CMakeList directory or the source root directory.



--

Andrew


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