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Re: [PATCH] Remove locale-related environment variables from subprocess environments

On Wed, 10 Sep 2014, Roland McGrath wrote:

> > Hmm.  Is it fine to require that test-wrapper-env supports the -u option 
> > of env?  There is no other way to unset environment variables at this 
> > point, as far as I can see.
> I think using -u is OK, but Joseph might have an opinion.  If it's a
> problem, then for all these particular variables setting them to empty is
> probably equivalent.

Well, you need to update the documentation in install.texi of what the 
arguments to test-wrapper-env look like.  But I'm not aware of any wrapper 
implementations that don't just go through env (whether by using, or the default empty wrapper), though in principle you 
could have such an implementation (e.g. using userspace QEMU, where the 
program "env" may not exist in a form it can execute ... not that I know 
if userspace QEMU actually has a suitable mechanism for setting 
environment variables that only apply to the emulated program and not to 
QEMU itself).  A NEWS entry mentioning the new requirements might still be 
a good idea.

Joseph S. Myers

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