Re: [PATCH] gnu: Add mcelog.

[Danny Milosavljevic]

DESTDIR is a feature which lets you install into a tempdir. The idea is that 
you install it all there and then atomically replace the ORIGINAL version at 
the non-DESTDIR location.

It's very bad to set DESTDIR to out because the outdir is used after 
installation, too (your program will stay at that place). This is not expected 
by DESTDIR.

So for example let's say you'd have

DESTDIR=/tmp
PREFIX=/usr

.

Then for example a theme is first installed to /tmp/usr/share/themes (by make) 
- but after it's all done, the distribution is supposed to move it to 
/usr/share/themes atomically. The program will *always* (also when its still 
installed to /tmp/usr/share/themes) try to load its files from 
/usr/share/themes.