More cleanups to the dist script -- always deal...
More cleanups to the dist script -- always deal...

More cleanups to the dist script -- always deal in absolute directory
names, just to make things much, much simpler.  Also, only force the
generation of new doxy docs when not doing a VPATH 'make dist'.
Signifiantly simpler that way (cleanly fail if we do a VPATH 'make
dist' and there's no doxy docs in the srcdir).

This commit was SVN r1141.

shekkbuilder/hwloc,ggouaillardet/hwloc,shekkbuilder/hwloc,ggouaillardet/hwloc,ggouaillardet/hwloc,shekkbuilder/hwloc,shekkbuilder/hwloc,ggouaillardet/hwloc