Hi, I have a "superbuild" project which builds two external projects (EP) and then my actual project. It builds fine on linux and mac. On windows, however, the build fails if the build directory is *inside* the source folder.
Let's say e.g. that the sources are in "c:/src/myproject". If the build is in "c:/src/myproject-build", it succeeds, but if it is in "c:/src/myproject/build", it fails. (It took me a while until I discovered the connection between the failures and the build dir path.) With the build dir inside the source dir, I get compilation error because header files are not found. In fact, if I open the "*.vcxproj" file of the same target in the two types of builds, the "<AdditionalIncludeDirectories>" elements are different. The include dirs of the EPs are missing from it in the "in-source" build and they are there in the "out-source" build. This is how far I got with my debugging, and I'm not sure how to go on. Unfortunately, I'd need to keep the build folder inside the sources because the GitLab CI runners assume this. Any help would be much appreciated. I used CMake 3.11.4 and 3.12.0RC3. Kind regards, Miklos
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