The latest upgrade broke installation of libpcre2-dev:i386 alongside
libpcre2-dev:amd64.
Building wine requires the packages installed.

Unpacking libpcre2-dev:amd64 (10.48-1) over (10.46-1+b2)…
dpkg: error processing archive
/var/cache/apt/archives/libpcre2-dev_10.48-1_amd64.deb (--unpack):
 trying to overwrite shared '/usr/bin/pcre2-config', which is different from
other instances of package libpcre2-dev:amd64
Errors were encountered while processing:
 /var/cache/apt/archives/libpcre2-dev_10.48-1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

Looking at pcre2-config, it now includes the architecture triplet, thus making
it no longer mutiarch installable. Older versions of the package shipped
without that extra case statement.
--- 32/usr/bin/pcre2-config     2026-08-31 22:37:22.000000000 +0200
+++ 64/usr/bin/pcre2-config     2026-08-31 22:37:22.000000000 +0200
@@ -30,7 +30,7 @@
 libR=

 libS=
-case "${prefix}/lib/i386-linux-gnu" in
+case "${prefix}/lib/x86_64-linux-gnu" in
   # system locations on Linux, no -L needed
   /usr/lib|/usr/lib32|/usr/lib64|/usr/lib/*-gnu*)
   ;;
@@ -40,7 +40,7 @@
   /usr/lib/64|/usr/lib/amd*|/usr/lib/sparc*|/usr/lib/ppc*)
   ;;
   *)
-  libS="-L${prefix}/lib/i386-linux-gnu"
+  libS="-L${prefix}/lib/x86_64-linux-gnu"
   ;;
 esac

Control: severity -1 serious
necessarily need to be Multi-Arch: same. Maybe libpcre2-dev does to
satisfy some m-a chain. If it does, then it must fulfill the
property (thus adjusting severity).
Maybe libpcre2-dev does not need to be M-A: same, then it can just
drop that flag from d/control.

Best,
Chris

Hi,

No, I think this is just my fault - when upgrading from 10.46 I looked
at the merge conflict in pcre2-config.in and my previous notes on why
I'd patched it, and incorrectly thought that the issue was that its
_output_ should not vary on our various architectures.

I think the right answer is probably to patch it back to how it was in
in 10.46 i.e. just:

"
libR=

libS=
"

I plan to do this today - Helmut, would you care to confirm that's
correct, please?

Apologies for the inconvenience (I did a bunch of testing of the 10.48
RC, but that didn't pick this up).

Regards,

Matthew

Hi Chris and Matthew,

I concur that usually -dev packages do not require M-A:same for cross
building. However, it is very convenient for developers to have them
M-A:same (which is also why you see these bug reports) as they can use a
single development environment for native and cross building.

This sounds very plausible. What I see in unstable is adding
-L/usr/lib/${DEB_HOST_MULTIARCH} to libS. Dropping that code (which
seems to be the only architecture-dependent aspect) should not pose any
downsides on Debian, because that location is on the default search
path. This is the kind of patch that exists for Debian and does not have
to be upstreamed as it is not relevant to other distributions.

Helmut

We believe that the bug you reported is fixed in the latest version of
pcre2, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1146381@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Matthew Vernon <matthew@debian.org> (supplier of updated pcre2 package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Tue, 01 Sep 2026 12:54:23 +0100
Source: pcre2
Architecture: source
Version: 10.48-2
Distribution: unstable
Urgency: high
Maintainer: Matthew Vernon <matthew@debian.org>
Changed-By: Matthew Vernon <matthew@debian.org>
Closes: 1146381
Changes:
 pcre2 (10.48-2) unstable; urgency=high
 .
   * remove unnecessary libS logic from pcre2-config.in (closes: #1146381)
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 44b1576bca756ec589fd787604c784a83d0082b3 7846 pcre2_10.48-2.diff.gz
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