[arch-dev-public] grep breakage in staging

[Dave Reisner]

On Tue, Feb 07, 2012 at 08:49:36PM +0100, Florian Pritz wrote:
> On 07.02.2012 20:23, Dave Reisner wrote:
> > Hey,
> > 
> > Long story short, udev wouldn't build against staging and bailed with a
> > really strange library-not-found error. I was able to reduce it down to
> > libtool flaking out because it hardcodes paths to grep:
> > 
> >    92 # A grep program that handles long lines.
> >    93 GREP="/bin/grep"
> > Do we:
> > * tell libtool upstream to go to hell? (please?)
> 
> +1
> 
> $PATH is there for a reason and if they think it might not contain /bin,
> they can just add it at the end.
> 
> If the reason is "performance" (I did hear that one somewhere already)
> they shouldn't use a shell script. Forking is worse than a few (likely
> cached) file system lookups.

POSIX specifies the 'hash' builtin for /bin/sh, meaning that you do a
path lookup once and then never again. There's literally no reason not
to trust in a sane PATH.

> Until it's fixed upstream, I suggest to just patch it.
> 
> PS: Just saw that the variables for gcc, strip, ln -s, ar, as, printf,
> tr and objdump do not contain a hardcoded path but just the executable
> name. Go figure.
> 
> -- 
> Florian Pritz
>