Re: Makefile.in: $LOGNAME and $USERNAME not always set

[Stefan Monnier]

> There are some lines in Makefile.in running `chown' like this: 
> ,----
> | find $${dest} -exec chown $${LOGNAME:-$$USERNAME} {} ';' ;\
> `----

> While in macosx, both LOGNAME and USERNAME is unset, thus I got lots of
> chown errors while `make install': 

> ,----
> | usage: chown [-fhv] [-R [-H | -L | -P]] owner[:group] file ...
> |        chown [-fhv] [-R [-H | -L | -P]] :group file ...
> `----

> I checked gnu/linux, solaris, they have set $LOGNAME, $USER; macosx has
> only set $USER. None of them have set $USERNAME. So it's problematic
> here, expecially on macosx. When $LOGNAME is empty, can we fall down to
> $USER instead?

Yes, $$USERNAME should probably be $$USER instead.  Looks like
a typo/thinko.

This said, I'm surprised macosx doesn't define LOGNAME since AFAIK that's
the only official envvar (I seem to remember reading something along these
lines in POSIX or SUSv3).


        Stefan