Re: Explicit interpreter paths considered harmful

[Jim Meyering]

Ludovic Courtès wrote:
> Paolo Bonzini <address@hidden> writes:
>
>>> --- a/build-aux/gitlog-to-changelog
>>> +++ b/build-aux/gitlog-to-changelog
>>> @@ -1,4 +1,7 @@
>>> -#!/usr/bin/perl
>>> +#!/bin/sh
>>> +# Accommodate systems where /usr/bin/perl is not the right path.
>>> +exec perl -x "$0" "$@"
>>> +#!perl
>>>
>>> The only assumption it makes is about /bin/sh, but that one seems to be
>>> hard (impossible?) to avoid anyway.
>>
>> Yeah.  But why not the standard
>>
>> #! /bin/sh
>> eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
>>     if 0;
>>
>> suggested in perlrun(1)?
>
> You mean without ‘/usr/bin/’, right?  If so, then yes.

If you send an updated patch please quote "$0" like you did initially.

However, is this really necessary?
You're not running gitlog-to-changelog manually, are you?
If it's scripted, you can easily invoke it via "perl gitlog-to-changelog ..."