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Subject: bug#60708: pcre: improve support for linking with a library without unicode
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Noticed while testing the previous patch, and which resulted in tests
being skipped for the wrong reason.

Carlo

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To: Carlo Arenas <carenas@HIDDEN>
Subject: bug#60708: Acknowledgement (pcre: improve support for linking
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Message sent to bug-grep@HIDDEN:

Subject: bug#60708: pcre: improve support for linking with a library without unicode
Resent-From: Jim Meyering <jim@HIDDEN>
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From: Jim Meyering <jim@HIDDEN>
Date: Tue, 10 Jan 2023 21:37:51 -0800
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On Tue, Jan 10, 2023 at 3:19 AM Carlo Arenas <carenas@HIDDEN> wrote:
> Noticed while testing the previous patch, and which resulted in tests
> being skipped for the wrong reason.

Thanks for catching that.
I'll push the following tomorrow.
It has a tiny change that moves the declaration of "unicode" down to
just before where it's set and changes its type to uint32_t.

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Message sent to bug-grep@HIDDEN:

Subject: bug#60708: pcre: improve support for linking with a library without unicode
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On 2023-01-10 21:37, Jim Meyering wrote:

> +  uint32_t unicode = 1;
> +  pcre2_config (PCRE2_CONFIG_UNICODE, &unicode);
> +  if (unicode && localeinfo.multibyte)

Shouldn't that be:

   uint32_t unicode;
   if (localeinfo.multibyte
       && 0 <= pcre2_config (PCRE2_CONFIG_UNICODE, &unicode)
       && unicode)

That is, don't bother to call pcre2_config in a unibyte locale, and 
don't initialize 'unicode' (so that valgrind-like tools can detect an 
error if pcre2_config is buggy), and check the return value of pcre2_config.

Last modified: Wed, 11 Jan 2023 21:15:01 UTC

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