Re: cyradm perl error on Debian Testing

Ellie, Yadd, thanks for your answers!
Debian stable (Bullseye) uses this versions:

libpcre2-8-0:amd64 10.36-2
libpcre3:amd64        2:8.39-13

and works fine.


In Debian testing (Bookworm) this versions are installed:

libpcre2-8-0:amd64 10.39-3
libpcre3:amd64       2:8.39-13

and cyradm does not work.


I'll report it on Debian bug tracker, following your suggestions.

Thanks again!


Javier.-


El 24/2/22 a las 20:10, ellie timoney escribió:
> Hi,
>
> On Thu, 24 Feb 2022, at 2:00 AM, Infraestructura TIC - UNNOBA wrote:
>> Yes, both packages are installed:
>>
>> # dpkg -l | grep libpcre
>> ii  libpcre2-8-0:amd64 10.39-3
>> amd64        New Perl Compatible Regular Expression Library- 8 bit
>> runtime files
>> ii  libpcre3:amd64 2:8.39-13                             amd64
>> Old Perl 5 Compatible Regular Expression Library - runtime files
> What happens when you build and run cyrus with only one of these pcre libraries installed, but not both?
>
> What about only the other?
>
>>>> undefined symbol: pcreposix_regexec at
> This is probably an incompatibility between the old "libpcre3" package and the new "libpcre2" package.
> 
> If you're seeing "undefined symbol: pcreposix_regexec", this almost certainly means that (part of) your Cyrus was built using the libpcre3 headers, but at runtime is loading a library that does not provide the renamed function those headers expect.
> 
> The libpcre3 package on Debian has a very necessary modification that renames "regexec" to "pcreposix_regexec", to prevent it clashing with the identically-named but incompatible "regexec" from glibc, and the corresponding header defines a macro such that if you're using the pcre header (not the libc one) and call "regexec", your code will find the pcre version of the function (not the libc one).
> 
> I don't know if libpcre2 still requires this hack.  I guess it might not, and then doesn't include it.
> 
> There is an open issue regarding the state of Cyrus's support for the new libpcre2 library: https://github.com/cyrusimap/cyrus-imapd/issues/3861 This issue is about a single test failing when using libpcre2, but note that _there are no tests for cyradm_, so any problems with cyradm would not even be found by the tests.  I suggest you join the discussion there with this report.  There is a link to the same issue in the Debian bug tracker; you may want to join that discussion too.
> 
> Cyrus 3.4 has no declared support for libpcre2.  If you want to actually run Cyrus, please use the older libpcre3.  I believe the Debian Testing package might be linking against libpcre2 deliberately to solicit reports of things breaking, so please report it!
> 
> Cheers,
> 
> ellie



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