RPATH issue on Fedora 27 amd64

[mandree]

Greetings,

compiling and installing glyr OOTB from Git on Fedora 27 with cmake mostly at the default settings ends up with the library (.so) under /usr/local/lib, and the cmake-typical empty RPATH.

So glyrc does not find its library.

The fix for me is to add this line to CMakeLists.txt:

SET(CMAKE_INSTALL_RPATH "\$ORIGIN/../${INSTALL_LIB_DIR}")

This may be Linux/glibc specific as it relies on ld.so understanding the $ORIGIN token.