Your message dated Sat, 14 Mar 2026 07:18:44 +0000
with message-id <[email protected]>
and subject line Bug#1128683: fixed in libwebsockets 4.3.5-4
has caused the Debian Bug report #1128683,
regarding libwebsockets: FTBFS with glibc 2.43 due to ISO C23 const return types
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [email protected]
immediately.)
--
1128683: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1128683
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Source: libwebsockets
Version: 4.3.5-3
Severity: important
Tags: ftbfs upstream
Justification: fails to build from source
User: [email protected]
Usertags: glibc-2.43
Dear maintainer(s),
libwebsockets fails to build from source with glibc 2.43, currently in
experimental. From the build log:
| /build/reproducible-path/libwebsockets-4.3.5/lib/plat/unix/unix-caps.c: In
function ‘lws_plat_user_colon_group_to_ids’:
| /build/reproducible-path/libwebsockets-4.3.5/lib/plat/unix/unix-caps.c:54:23:
error: initialization discards ‘const’ qualifier from pointer target type
[-Werror=discarded-qualifiers]
| 54 | char *colon = strchr(u_colon_g, ':'), u[33];
| | ^~~~~~
...
| /build/reproducible-path/libwebsockets-4.3.5/lib/core-net/client/client.c: In
function ‘lws_set_proxy’:
|
/build/reproducible-path/libwebsockets-4.3.5/lib/core-net/client/client.c:43:11:
error: assignment discards ‘const’ qualifier from pointer target type
[-Werror=discarded-qualifiers]
| 43 | p = strrchr(proxy, '@');
| | ^
...
| [ 76%] Building C object
lib/CMakeFiles/websockets_shared.dir/roles/h2/http2.c.o
| /build/reproducible-path/libwebsockets-4.3.5/lib/core-net/client/client.c: In
function ‘lws_set_proxy’:
|
/build/reproducible-path/libwebsockets-4.3.5/lib/core-net/client/client.c:43:11:
error: assignment discards ‘const’ qualifier from pointer target type
[-Werror=discarded-qualifiers]
| 43 | p = strrchr(proxy, '@');
| | ^
...
| /build/reproducible-path/libwebsockets-4.3.5/lib/plat/unix/unix-caps.c: In
function ‘lws_plat_user_colon_group_to_ids’:
| /build/reproducible-path/libwebsockets-4.3.5/lib/plat/unix/unix-caps.c:54:23:
error: initialization discards ‘const’ qualifier from pointer target type
[-Werror=discarded-qualifiers]
| 54 | char *colon = strchr(u_colon_g, ':'), u[33];
| | ^~~~~~
| cc1: all warnings being treated as errors
| make[3]: *** [lib/CMakeFiles/websockets_shared.dir/build.make:82:
lib/CMakeFiles/websockets_shared.dir/plat/unix/unix-caps.c.o] Error 1
| make[3]: *** Waiting for unfinished jobs....
| make[3]: *** [lib/CMakeFiles/websockets_shared.dir/build.make:866:
lib/CMakeFiles/websockets_shared.dir/core-net/client/client.c.o] Error 1
| cc1: all warnings being treated as errors
| make[3]: *** [lib/CMakeFiles/websockets.dir/build.make:82:
lib/CMakeFiles/websockets.dir/plat/unix/unix-caps.c.o] Error 1
| /build/reproducible-path/libwebsockets-4.3.5/lib/roles/http/cookie.c: In
function ‘lws_cookie_write_nsc’:
| /build/reproducible-path/libwebsockets-4.3.5/lib/roles/http/cookie.c:338:20:
error: assignment discards ‘const’ qualifier from pointer target type
[-Werror=discarded-qualifiers]
| 338 | dl = memchr(c->f[CE_PATH], '?', c->l[CE_PATH]);
| | ^
| /build/reproducible-path/libwebsockets-4.3.5/lib/roles/http/server/server.c:
In function ‘lws_handshake_server’:
|
/build/reproducible-path/libwebsockets-4.3.5/lib/roles/http/server/server.c:2307:45:
error: assignment discards ‘const’ qualifier from pointer target type
[-Werror=discarded-qualifiers]
| 2307 | msg = strchr(rej->value, ' ');
| | ^
| /build/reproducible-path/libwebsockets-4.3.5/lib/roles/http/cookie.c: In
function ‘lws_cookie_write_nsc’:
| /build/reproducible-path/libwebsockets-4.3.5/lib/roles/http/cookie.c:338:20:
error: assignment discards ‘const’ qualifier from pointer target type
[-Werror=discarded-qualifiers]
| 338 | dl = memchr(c->f[CE_PATH], '?', c->l[CE_PATH]);
| | ^
| /build/reproducible-path/libwebsockets-4.3.5/lib/roles/http/server/server.c:
In function ‘lws_handshake_server’:
|
/build/reproducible-path/libwebsockets-4.3.5/lib/roles/http/server/server.c:2307:45:
error: assignment discards ‘const’ qualifier from pointer target type
[-Werror=discarded-qualifiers]
| 2307 | msg = strchr(rej->value, ' ');
| | ^
| cc1: all warnings being treated as errors
| make[3]: *** [lib/CMakeFiles/websockets.dir/build.make:1034:
lib/CMakeFiles/websockets.dir/roles/http/cookie.c.o] Error 1
| cc1: all warnings being treated as errors
| make[3]: *** [lib/CMakeFiles/websockets_shared.dir/build.make:1034:
lib/CMakeFiles/websockets_shared.dir/roles/http/cookie.c.o] Error 1
| cc1: all warnings being treated as errors
| make[3]: *** [lib/CMakeFiles/websockets_shared.dir/build.make:1006:
lib/CMakeFiles/websockets_shared.dir/roles/http/server/server.c.o] Error 1
| make[3]: Leaving directory
'/build/reproducible-path/libwebsockets-4.3.5/obj-aarch64-linux-gnu'
| make[2]: *** [CMakeFiles/Makefile2:1682:
lib/CMakeFiles/websockets_shared.dir/all] Error 2
| make[2]: *** Waiting for unfinished jobs....
| cc1: all warnings being treated as errors
| make[3]: *** [lib/CMakeFiles/websockets.dir/build.make:1006:
lib/CMakeFiles/websockets.dir/roles/http/server/server.c.o] Error 1
| make[3]: Leaving directory
'/build/reproducible-path/libwebsockets-4.3.5/obj-aarch64-linux-gnu'
| make[2]: *** [CMakeFiles/Makefile2:1650: lib/CMakeFiles/websockets.dir/all]
Error 2
| make[2]: Leaving directory
'/build/reproducible-path/libwebsockets-4.3.5/obj-aarch64-linux-gnu'
| make[1]: *** [Makefile:169: all] Error 2
| make[1]: Leaving directory
'/build/reproducible-path/libwebsockets-4.3.5/obj-aarch64-linux-gnu'
| dh_auto_build: error: cd obj-aarch64-linux-gnu && make -j128 INSTALL="install
--strip-program=true" VERBOSE=1 returned exit code 2
| make: *** [debian/rules:16: binary] Error 25
The full build log is available here [1].
The issue is due to ISO C23 declaration of bsearch, memchr, strchr,
strpbrk, strrchr, strstr, wcschr, wcspbrk, wcsrchr, wcsstr and wmemchr,
which now returns a pointer to a const-qualified type when the input
argument is a pointer to a const-qualified type [2].
I would like to thanks Emanuele Rocca for doing the archive rebuild on
a fast arm64 server.
Regards
Aurelien
[1]
https://people.debian.org/~ema/glibc-2.43-rebuilds/output-1/libwebsockets_arm64.build
[2]
https://sourceware.org/git/?p=glibc.git;a=blob;f=NEWS;h=e271fb2e4d76903c77a302aaec1ca22ce31027d0;hb=f762ccf84f122d1354f103a151cba8bde797d521#l19
--
Aurelien Jarno GPG: 4096R/1DDD8C9B
[email protected] http://aurel32.net
--- End Message ---
--- Begin Message ---
Source: libwebsockets
Source-Version: 4.3.5-4
Done: Laszlo Boszormenyi (GCS) <[email protected]>
We believe that the bug you reported is fixed in the latest version of
libwebsockets, 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 [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Laszlo Boszormenyi (GCS) <[email protected]> (supplier of updated libwebsockets
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 [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Sat, 14 Mar 2026 07:45:04 +0100
Source: libwebsockets
Architecture: source
Version: 4.3.5-4
Distribution: unstable
Urgency: medium
Maintainer: Laszlo Boszormenyi (GCS) <[email protected]>
Changed-By: Laszlo Boszormenyi (GCS) <[email protected]>
Closes: 1128683
Changes:
libwebsockets (4.3.5-4) unstable; urgency=medium
.
[ Ural Tunaboyu <[email protected]> ]
* Fix FTBFS with glibc 2.43 due to ISO C23 const return types
(closes: #1128683).
.
[ Laszlo Boszormenyi (GCS) ]
* Switch pkg-config dependency to pkgconf in self-testing.
Checksums-Sha1:
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libwebsockets_4.3.5-4.debian.tar.xz
Checksums-Sha256:
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74157358cbf37d3964e43db6d1e1ac0b3a52135c853bbde5abe5c9868ee9d644 23904
libwebsockets_4.3.5-4.debian.tar.xz
Files:
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