[Bug other/40046] GCC build fails due to host_address variable is empty

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40046

Eric Gallager <egallager at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |egallager at gcc dot gnu.org
         Resolution|---                         |INVALID

--- Comment #1 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Roman Marchenko from comment #0)
> There is the following line in configure script:
> 
> eval `${CC-cc} -E conftest.c | grep host_address=`
> 
> Since I have GREP_OPTIONS variable in my environment which looks like
> "GREP_OPTIONS=--color=always", some color codes are generated in grep's
> output. The issue is the "eval ..." does not work properly in this case and
> the host_address variable is empty.
> 
> I have repaired the build by replacing the line with the following:
> 
> eval `${CC-cc} -E conftest.c | grep --color=auto host_address=`

The GREP_OPTIONS environment variable is deprecated; don't use it:
https://www.gnu.org/software/grep/manual/html_node/Environment-Variables.html