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From: Jonathan Wakely <jwakely.gcc@gmail.com>
Date: Fri, 17 Jun 2022 21:07:57 +0100
Message-ID: <CAH6eHdT2z1kGRE3LLaqpaTR2guS-BxRgytM6SAgLLabnv-M3+A@mail.gmail.com>
Subject: Re: GSoC Blog Post 0 - GCCprefab build system
To: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Cc: Jonathan Wakely via Fortran <fortran@gcc.gnu.org>,
 Wileam Yonatan Phan <wileamyp@outlook.com>, 
 "gcc@gcc.gnu.org" <gcc@gcc.gnu.org>
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On Fri, 17 Jun 2022 at 19:45, Bernhard Reutner-Fischer wrote:
>
> On 13 June 2022 17:26:59 CEST, Jonathan Wakely via Fortran <fortran@gcc.gnu.org> wrote:
>
> >https://gist.github.com/jwakely/95b3a790157f55d75e18f577e12b50d7#file-build_gcc_versions-sh
>
> s/[[/[/
> s/==/=/
>
> The former are deprecated or obsolescent notations of test(1) syntax, fwiw.

The former are defined by bash. If I made your change, [ $ver = ?.?.?
] would never be true, because ?.?.? is not a GCC version.

With Bash [[ $ver == ?.?.? ]] doesn't do word splitting etc. and
matches the RHS as a glob patttern, which is exactly what I want it to
do.