[CMake] CMAKE_INSTALL_LIBDIR - full path or relative?

[Orion Poplawski]

For quite a while, Fedora packages will call cmake with -DCMAKE_INSTALL_LIBDIR 
set to /usr/lib or /usr/lib64 as appropriate.  Some projects that use this 
convention include plplot, lasi

The relatively new cmake module GNUInstallDirs sets CMAKE_INSTALL_LIBDIR to 
lib or lib64.  Other projects like tkimg appear to use this convention.

A bug has been filed in Fedora due to this:

https://bugzilla.redhat.com/show_bug.cgi?id=795542

Is this indeed the preferred convention for CMAKE_INSTALL_LIBDIR?  Shall I 
file bugs against plplot, lasi and others to change the usage?

-- 
Orion Poplawski
Technical Manager                     303-415-9701 x222
NWRA, Boulder Office                  FAX: 303-415-9702
3380 Mitchell Lane                  orion at cora.nwra.com
Boulder, CO 80301              http://www.cora.nwra.com