Dear maintainer(s), lastz fails to build from source with glibc 2.43, currently in experimental. From the build log: | dh_auto_build | make -j128 INSTALL="install --strip-program=true" | make[1]: Entering directory '/build/reproducible-path/lastz-1.04.52' | cd src && make lastz lastz_D | make[2]: Entering directory '/build/reproducible-path/lastz-1.04.52/src' ... | gcc -Wdate-time -D_FORTIFY_SOURCE=2 -c -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/lastz-1.04.52=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -Wno-stringop-truncation -O3 -Wall -Wextra -Werror -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DVERSION_MAJOR="\"1"\" -DVERSION_MINOR="\"04"\" -DVERSION_SUBMINOR="\"52"\" -DREVISION_DATE="\"20250402"\" -DSUBVERSION_REV="\""\" -Dscore_type=D sequences.c -o sequences_D.o | gcc -Wdate-time -D_FORTIFY_SOURCE=2 -c -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/lastz-1.04.52=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -Wno-stringop-truncation -O3 -Wall -Wextra -Werror -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DVERSION_MAJOR="\"1"\" -DVERSION_MINOR="\"04"\" -DVERSION_SUBMINOR="\"52"\" -DREVISION_DATE="\"20250402"\" -DSUBVERSION_REV="\""\" -Dscore_type=D capsule.c -o capsule_D.o | sequences.c: In function ‘parse_sequence_name’: | sequences.c:8090:17: error: assignment discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers] | 8090 | parse = strstr (name, "::"); | | ^ | sequences.c:8091:17: error: assignment discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers] | 8091 | actions = strchr (name, '['); | | ^ | sequences.c: In function ‘parse_sequence_name’: | sequences.c:8090:17: error: assignment discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers] | 8090 | parse = strstr (name, "::"); | | ^ | sequences.c:8091:17: error: assignment discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers] | 8091 | actions = strchr (name, '['); | | ^ | cc1: all warnings being treated as errors | make[2]: *** [Makefile:96: sequences.o] Error 1 | make[2]: *** Waiting for unfinished jobs.... | cc1: all warnings being treated as errors | make[2]: *** [Makefile:99: sequences_D.o] Error 1 | make[2]: Leaving directory '/build/reproducible-path/lastz-1.04.52/src' | make[1]: *** [Makefile:16: build_lastz] Error 2 | make[1]: Leaving directory '/build/reproducible-path/lastz-1.04.52' | dh_auto_build: error: make -j128 INSTALL="install --strip-program=true" returned exit code 2 | make: *** [debian/rules:13: binary] Error 25 | 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. Regards Aurelien [1] https://people.debian.org/~ema/glibc-2.43-rebuilds/output-1/lastz_arm64.build [2] https://sourceware.org/git/?p=glibc.git;a=blob;f=NEWS;h=e271fb2e4d76903c77a302aaec1ca22ce31027d0;hb=f762ccf84f122d1354f103a151cba8bde797d521#l19