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authorYann E. MORIN <yann.morin.1998@free.fr>2017-03-02 21:43:39 +0100
committerMatthias Schiffer <mschiffer@universe-factory.net>2017-03-02 21:49:35 +0100
commita925a4cab1b722a2a24b0c1d2a1925f3b766de61 (patch)
tree65750d55c98d6b312645de9418fa40176421cd67 /src/protocols
parent441107e4165fe4af80764fee4d2b7fcd8f731c3d (diff)
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CMakeList: do not overwrite module path
Currently, the CMakeList.txt completely overwrites the CMAKE_MODULE_PATH variable. This is problematic when an upper-layer buildsystem wants to set its own module path to use custom modules. For example, Buldroot [0] provides a custom platform description [1] to fix cross-compilation issue. Overwriting the module path means that this custom platform description is not found [2]. Providing such a custom platform description is what the upstream cmake devs suggest [3], quoting: If a toolchain file specifies CMAKE_SYSTEM_NAME such that a custom `Platform/MySystem.cmake` file is loaded then the latter can set them [*] as needed for the target platform. [*] offending settings causing RPATH issues during cross-compilation. So we need to append our source tree to the module path, not replace it blindly. [0] https://buildroot.org/ [1] https://git.buildroot.org/buildroot/tree/support/misc/Buildroot.cmake [2] http://autobuild.buildroot.net/results/69f/69fb2e3b549a069e2898506db918423e6742c589/build-end.log [3] http://public.kitware.com/pipermail/cmake/2017-February/065063.html Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
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