oddly resolved rpath values

[olesenm]

Not a real bug (nothing broken) but the resolved linkage paths do look a bit funny. For example,

/home/user/openfoam/ThirdParty-common/platforms/linux64Clang150/ADIOS2-2.9.0/bin/bpls:
/home/user/openfoam/ThirdParty-common/platforms/linux64Clang150/ADIOS2-2.9.0/bin/../lib64/libadios2_core.so.2:
/home/user/openfoam/ThirdParty-common/platforms/linux64Clang150/ADIOS2-2.9.0/bin/../lib64/../lib6/libadios2_perfstubs.so:
/home/user/openfoam/ThirdParty-common/platforms/linux64Clang150/ADIOS2-2.9.0/bin/../lib64/../lib64/libadios2_evpath.so:
   /home/user/openfoam/ThirdParty-common/platforms/linux64Clang150/ADIOS2-2.9.0/bin/../lib64/../lib64/libadios2_ffs.so.2:
   /home/user/openfoam/ThirdParty-common/platforms/linux64Clang150/ADIOS2-2.9.0/bin/../lib64/../lib64/libadios2_atl.so.2:
   /home/user/openfoam/ThirdParty-common/platforms/linux64Clang150/ADIOS2-2.9.0/bin/../lib64/../lib64/../lib64/libadios2_dill.so.2:

The bin/../lib64 part kind of makes sense, but the bin/../lib64/../lib64/../lib64/ starts to look a bit unreal.