[This bug is NOT targeted to the upcoming trixie release] Please keep this issue open in the bug tracker for the package it was filed for. If a fix in another package is required, please file a bug for the other package (or clone), and add a block in this package. Please keep the issue open until the package can be built in a follow-up test rebuild. The package fails to build in a test rebuild on at least amd64 with gcc-15/g++-15, but succeeds to build with gcc-14/g++-14. The severity of this report will be raised before the forky release. The full build log can be found at: http://qa-logs.debian.net/2025/02/16/amd64exp/crack_5.0a-16_unstable_gccexp.log.gz The last lines of the build log are at the end of this report. To build with GCC 15, either set CC=gcc-15 CXX=g++-15 explicitly, or install the gcc, g++, gfortran, ... packages from experimental. apt-get -t=experimental install g++ GCC 15 now defaults to the C23/C++23 standards, exposing many FTBFS. Other Common build failures are new warnings resulting in build failures with -Werror turned on, or new/dropped symbols in Debian symbols files. For other C/C++ related build failures see the porting guide at http://gcc.gnu.org/gcc-15/porting_to.html [...] rm -f dawglib.o debug.o rules.o stringlib.o *~ make[3]: Leaving directory '/build/reproducible-path/crack-5.0a/src/lib' make[3]: Entering directory '/build/reproducible-path/crack-5.0a/src/libdes' /bin/rm -f *.o tags core rpw destest des speed libdes.a .nfs* *.old \ *.bak destest rpw des speed make[3]: Leaving directory '/build/reproducible-path/crack-5.0a/src/libdes' make[3]: Entering directory '/build/reproducible-path/crack-5.0a/src/util' rm -f *.o *~ make[3]: Leaving directory '/build/reproducible-path/crack-5.0a/src/util' make[2]: Leaving directory '/build/reproducible-path/crack-5.0a' make[2]: Entering directory '/build/reproducible-path/crack-5.0a' make[3]: Entering directory '/build/reproducible-path/crack-5.0a/src/lib' ( make "XDIR=../../lib/bin/debian" "XCFLAGS=-g -O2 -Wall -fstack-protector-strong -Wformat -Werror=format-security -DUSE_STRING_H -DUSE_STDLIB_H -DUSE_SIGNAL_H -DUSE_SYS_TYPES_H -DUSE_UNISTD_H -DUSE_PWD_H -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/crack-5.0a=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection" dawglib.o debug.o rules.o stringlib.o || exit 1 ) make[4]: Entering directory '/build/reproducible-path/crack-5.0a/src/lib' x86_64-linux-gnu-gcc -g -O2 -Wall -fstack-protector-strong -Wformat -Werror=format-security -DUSE_STRING_H -DUSE_STDLIB_H -DUSE_SIGNAL_H -DUSE_SYS_TYPES_H -DUSE_UNISTD_H -DUSE_PWD_H -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/crack-5.0a=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -g -O2 -Wall -fstack-protector-strong -Wformat -Werror=format-security -DUSE_STRING_H -DUSE_STDLIB_H -DUSE_SIGNAL_H -DUSE_SYS_TYPES_H -DUSE_UNISTD_H -DUSE_PWD_H -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/crack-5.0a=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Wall -fstack-protector-strong -Wformat -Werror=format-security -DUSE_STRING_H -DUSE_STDLIB_H -DUSE_SIGNAL_H -DUSE_SYS_TYPES_H -DUSE_UNISTD_H -DUSE_PWD_H -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/crack-5.0a=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -Wdate-time -D_FORTIFY_SOURCE=2 -c -o dawglib.o dawglib.c dawglib.c: In function ‘PutDAWG’: dawglib.c:42:1: warning: old-style function definition [-Wold-style-definition] 42 | PutDAWG (fp, buffer) | ^~~~~~~ dawglib.c:48:5: error: too many arguments to function ‘ChopNL’; expected 0, have 1 48 | ChopNL(buffer); | ^~~~~~ ~~~~~~ In file included from dawglib.c:12: libcrack.h:82:13: note: declared here 82 | extern char ChopNL(); | ^~~~~~ dawglib.c: In function ‘GetDAWG’: dawglib.c:65:1: warning: old-style function definition [-Wold-style-definition] 65 | GetDAWG (fp, buffer) | ^~~~~~~ dawglib.c:76:9: error: too many arguments to function ‘Debug’; expected 0, have 3 76 | Debug (1, "GetDAWG: read weird offset: %d\n", off); | ^~~~~ ~ libcrack.h:83:12: note: declared here 83 | extern int Debug(); | ^~~~~ dawglib.c: In function ‘PackDAWG’: dawglib.c:99:1: warning: old-style function definition [-Wold-style-definition] 99 | PackDAWG (infp, outfp) | ^~~~~~~~ dawglib.c:102:1: error: number of arguments doesn’t match prototype 102 | { | ^ libcrack.h:84:12: error: prototype declaration 84 | extern int PackDAWG(); | ^~~~~~~~ dawglib.c: In function ‘UnPackDAWG’: dawglib.c:118:1: warning: old-style function definition [-Wold-style-definition] 118 | UnPackDAWG (infp, outfp) | ^~~~~~~~~~ dawglib.c:121:1: error: number of arguments doesn’t match prototype 121 | { | ^ libcrack.h:86:12: error: prototype declaration 86 | extern int UnPackDAWG(); | ^~~~~~~~~~ dawglib.c: In function ‘GetDAWG’: dawglib.c:81:5: warning: ignoring return value of ‘fgets’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 81 | fgets (gbuffer + off, STRINGSIZE - off, fp); /* includes NL */ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ make[4]: *** [<builtin>: dawglib.o] Error 1 make[4]: Leaving directory '/build/reproducible-path/crack-5.0a/src/lib' make[3]: *** [Makefile:20: ../../lib/bin/debian/libc5.a] Error 1 make[3]: Leaving directory '/build/reproducible-path/crack-5.0a/src/lib' make[2]: *** [Makefile:31: library] Error 1 make[2]: Leaving directory '/build/reproducible-path/crack-5.0a' make[1]: *** [debian/rules:12: override_dh_auto_build] Error 1 make[1]: Leaving directory '/build/reproducible-path/crack-5.0a' make: *** [debian/rules:9: binary] Error 2 dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2