From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ricardo Wurmus <rekado@elephly.net>
Subject: bug#34279: guix-install.sh: uses /bin/bash shebang
Date: Mon, 04 Feb 2019 22:56:01 +0100
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To: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Cc: Claes Wallin <clacke@lysator.liu.se>, 34279@debbugs.gnu.org


Ludovic Court=C3=A8s <ludo@gnu.org> writes:

> Hi,
>
> Claes Wallin (=E9=9F=8B=E5=98=89=E8=AA=A0) <clacke@lysator.liu.se> skribi=
s:
>
>> This means ./guix-install.sh doesn't work on e.g. NixOS. :-)
>>
>> Please use /usr/bin/env bash.
>
> /usr/bin/env wouldn=E2=80=99t work on Guix System by default.  :-)

=E2=80=9Cguix-install.sh=E2=80=9D arguably would not primarily be executed =
on a Guix
system.

> +# We require Bash but for portability we'd rather not use /bin/bash or
> +# /usr/bin/env in the shebang, hence this hack.
> +if [ "x$BASH_VERSION" =3D "x" ]
> +then
> +    exec bash "$0" "$@"
> +fi
> +

Neat!

--
Ricardo