There’s a deduplication phase that remove duplicate arguments. -Wl,-rpath is found multiple times and removed. While it is “fine” in the .pc file as-is, CMake’s pkg-config support needs to understand the flags to do things like this. A fix that could be done is to use -Wl,-rpath,/path instead of split arguments. Other than that, it would be better if PkgConfig would understand these flags and expose them as LINKER: link options instead, but that is…non-trivial.
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