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Re: maint.mk: sed portability

From: Jim Meyering
Subject: Re: maint.mk: sed portability
Date: Thu, 24 May 2012 10:35:13 +0200

Paul Eggert wrote:

> On 05/23/2012 02:23 AM, Jim Meyering wrote:
>> +     | sed -n '/^\[GNUPG:\] ERRSIG /{s///;s/ .*//p;q;}')
> The use of {...;...} isn't portable in sed scripts.  You
> have to write it something like this instead, I'm afraid:
> | sed -n '/^\[GNUPG:\] ERRSIG /{
>     s///
>     s/ .*//p
>     q
> }'
> except of course this can't easily be done in a Makefile.
> This restriction is in POSIX-2008 and I've been burned by
> it with some less-commonly-used sed implementations
> (Interix or something like that....).  Dunno if this
> matters in a 'maint' rule, but Akim's report was
> about 'sed' portability, so I thought I'd mention it.

I didn't bother with the fused command in refresh-po,
since that is an optional target, whereas gpg_key_ID's
commands are run by anyone making a release.

Besides, I've just noticed that refresh-po's rules are incompatible
with the po/*.po structure that bootstrap maintains (refresh-po updates
the po/*.po files directly, whereas bootstrap is careful not to do that),
so I will never use it.

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