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Re: Handling of ENV options

From: Matt McCutchen
Subject: Re: Handling of ENV options
Date: Mon, 21 Mar 2011 18:18:23 -0400

On Mon, 2011-03-21 at 14:48 -0700, Paul Eggert wrote:
> On 03/21/2011 03:09 AM, Kalev Soikonen wrote:
> > Apparently, gmake exports the variables that were exported in the first 
> > place,
> > thus gzip is invoked with "GZIP=/bin/gzip" in its env.
> That's pretty unfortunate.  Perhaps gzip should
> ignore the GZIP environment variable unless it
> is parsable as a series of options?  gzip could
> issue a warning in that case, but proceed as if
> GZIP were unset.

The real problem is using the same variable name for the path of the
gzip executable and the default options.  gzip could gain support for a
new variable, something like GZIPFLAGS or GZIPOPT, that would take
priority over GZIP when specified.  Then Kalev could avoid the problem
by setting GZIPOPT=-9 .


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