[CMake] CMAKE_SIZEOF_VOID_P question

[Ghislain Vaillant]

> Next question is then why doesn't GNUInstallDirs set 
> CMAKE_INSTALL_LIBDIR as I expect on Ubuntu for the example I gave?
> 
> I am expecting to see either lib64/lib (for 64/32 bit) or a triplet for 
> (32-bit). Now it's always 'lib'.

Debian / Ubuntu injects this additional triplet for multiarch support
[1]. As far as you are concerned, you can safely ignore this detail.

[1] https://wiki.debian.org/Multiarch

Ghis