macOS: paths to dylibs are wrong, and in result binaries are broken, even though build “succeeds”

[barracuda156]

Specifically, dylibs are installed into ${prefix}/lib/elmersolver and ${prefix}/share/elmersolver/lib, but paths in them and binaries point to ${prefix}/lib:

10:~ svacchanda$ otool -L /opt/local/bin/ElmerSolver
/opt/local/bin/ElmerSolver:
	/opt/local/lib/libMacportsLegacySupport.dylib (compatibility version 1.0.0, current version 1.0.10)
	/opt/local/lib/libelmersolver.dylib (compatibility version 0.0.0, current version 0.0.0)
	/opt/local/lib/libmpi_stubs.dylib (compatibility version 0.0.0, current version 0.0.0)
	/opt/local/lib/libmatc.dylib (compatibility version 0.0.0, current version 0.0.0)
	/opt/local/lib/libfhuti.dylib (compatibility version 0.0.0, current version 0.0.0)
	/opt/local/lib/libarpack.dylib (compatibility version 0.0.0, current version 0.0.0)
	/opt/local/lib/libvecLibFort.dylib (compatibility version 0.0.0, current version 0.0.0)
	/opt/local/lib/libgcc/libgfortran.5.dylib (compatibility version 6.0.0, current version 6.0.0)
	/opt/local/lib/libgcc/libgcc_s.1.1.dylib (compatibility version 1.0.0, current version 1.1.0)
	/opt/local/lib/libgcc/libquadmath.0.dylib (compatibility version 1.0.0, current version 1.0.0)
	/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 125.2.11)

Of course, nothing is found and nothing works:

10:~ svacchanda$ /opt/local/bin/ElmerSolver
dyld: Library not loaded: /opt/local/lib/libelmersolver.dylib
  Referenced from: /opt/local/bin/ElmerSolver
  Reason: image not found
Trace/BPT trap

Real paths are:

/opt/local/lib/elmersolver/libelmersolver.dylib
/opt/local/lib/elmersolver/libfhuti.dylib
/opt/local/lib/elmersolver/libmatc.dylib
/opt/local/lib/elmersolver/libmpi_stubs.dylib
/opt/local/share/elmersolver/lib/EliminateDirichlet.dylib
. . .

See: https://trac.macports.org/ticket/67502

[barracuda156]

Closing, turned out that was a result of a conflict of cmake portgroup settings and CMakeLists-defined ones.
Sorry for a false alarm.