From: carnil@debian.org   
      
   Control: tags -1 + confirmed   
      
   Hi Aurelien,   
      
   On Fri, Feb 20, 2026 at 11:33:49PM +0100, Aurelien Jarno wrote:   
   > Source: criu   
   > Version: 4.2-1   
   > Severity: important   
   > Tags: ftbfs upstream   
   > Justification: fails to build from source   
   > User: debian-glibc@lists.debian.org   
   > Usertags: glibc-2.43   
   >   
   > Dear maintainer(s),   
   >   
   > criu fails to build from source with glibc 2.43, currently in   
   > experimental. From the build log:   
   >   
   > | gcc -c -g -O2 -Werror=implicit-function-declaration -ffile-p   
   efix-map=/build/reproducible-path/criu-4.2=. -fstack-protector-strong   
   -fstack-clash-protection -Wformat -Werror=format-security -mbran   
   h-protection=standard -O2 -g -Wall -Wformat-security -   
   Wdeclaration-after-statement -Wstrict-prototypes -Wno-dangling-pointer   
   -Wno-unknown-warning-option -Werror -DCONFIG_AARCH64 -D_FILE_OFFSET_BITS=64   
   -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -DCONFIG_HAS_LIBBSD -DCONFIG_GNUTLS   
   -DCONFIG_HAS_NFTABLES_LIB_API_1 -   
   iquote include/ -DCONFIG_HAS_LIBBSD -DCONFIG_GNUTLS -DCONFIG_HAS   
   NFTABLES_LIB_API_1 -I ./compel/include/uapi -fno-strict-aliasing -iquote   
   criu/include -iquote include -iquote images -iquote criu/arch/aarch64/include   
   -iquote . -I/usr/include/libnl3 -   
   DSYSCONFDIR='"/etc"' -DGLOBAL_CONFIG_DIR='"/etc/criu/"' -DDEFAUL   
   _CONFIG_FILENAME='"default.conf"' -DUSER_CONFIG_DIR='".criu/"' criu/tty.c -o   
   criu/tty.o   
   > | criu/tty.c: In function ‘pts_fd_get_index’:   
   > | criu/tty.c:262:21: error: initialization discards ‘const’ qualifier   
   from pointer target type [-Werror=discarded-qualifiers]   
   > |   262 |         char *pos = strrchr(link->name, '/');   
   > |       |                     ^~~~~~~   
   > | At top level:   
   > | cc1: note: unrecognized command-line option ‘-Wno-unknown-   
   arning-option’ may have been intended to silence earlier diagnostics   
   > | cc1: all warnings being treated as errors   
   > | make[4]: *** [/build/reproducible-path/criu-4.2/scripts/nmk/   
   cripts/build.mk:119: criu/tty.o] Error 1   
   > | make[3]: *** [criu/Makefile:76: criu/built-in.o] Error 2   
   > | make[2]: *** [Makefile:278: criu] Error 2   
   > | make[2]: Leaving directory '/build/reproducible-path/criu-4.2'   
   > | make[1]: *** [debian/rules:20: override_dh_auto_build] Error 2   
   > | make[1]: Leaving directory '/build/reproducible-path/criu-4.2'   
   > | make: *** [debian/rules:14: binary] Error 2   
   > | dpkg-buildpackage: error: debian/rules binary subprocess failed with exit   
   status 2   
   >   
   > 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.   
      
   Thanks for the report, this should be fixed with   
   https://github.com/checkpoint-restore/criu/commit/90300748effc1c   
   0fe56e35d3d1cc2ddfedab246   
      
   Depends on how fast you want things to be ready for unstable I can   
   cherry-pick it in advance before upstream releases a new version.   
      
   Regards,   
   Salvatore   
      
   --- SoupGate-Win32 v1.05   
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