This should fix the issues mentioned in the PRs given below,
in particular, it should do away with the need for libmap.conf hacks
for libgcc_s, libgomp, libobjc, libssp, libstdc++.
(the Makefile as I took it already set the linker's -rpath, and
patch-CMakeLists.txt ensures CMake keeps it during "make install").
ChangeLog 4.0.10: http://rawtherapee.com/blog/rawtherapee-4.0.10-released
ChangeLog 4.0.11: http://rawtherapee.com/blog/rawtherapee-4.0.11-released
PR: ports/171079
PR: ports/178206