Whilst the comment says we can't do this, its incorrect, install operates on WORKDIR and its hard for different parts of WORKDIR to be on different filesystems. Hardlinking instead of copying is therefore a nice performance gain. Also, completely skip the Documentation directory (adding a dummy Makefile to keep make happy) and tweak the other cp commands to link since if we don't we'd get "this is the same file" type errors from cp for some kernel versions. (From OE-Core rev: 0727e510f8533216518563b1533e804a1dc44402)
N/A. (It's a performance enhancement request.)
