[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/hydra_9.5-3_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 [...] 31 | __glibc_objsize (__s), __fmt, | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 32 | __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~ x86_64-linux-gnu-gcc -I. -Wall -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/hydra-9.5=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -fcommon -pie -fPIE -fstack-protector-all --param ssp-buffer-size=4 -D_FORTIFY_SOURCE=2 -Wl,-z,now -Wl,-z,relro -Wl,--allow-multiple-definition -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/hydra-9.5=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE -c hydra-mongodb.c -DHAVE_MYSQL_MYSQL_H -DLIBOPENSSL -DLIBNCURSES -DLIBFIREBIRD -DLIBIDN -DHAVE_PR29_H -DHAVE_PCRE -DLIBMYSQLCLIENT -DLIBPOSTGRES -DLIBSVN -DLIBSSH -DHAVE_ZLIB -DHAVE_GCRYPT -DLIBMCACHED -DLIBMONGODB -DLIBBSON -DLIBFREERDP -DLIBWINPR3 -DHAVE_MATH_H -I/usr/include/mysql -I/usr/include -I/usr/include -I/usr/include -I/usr/include -I/usr/include/postgresql -I/usr/include -I/usr/include/subversion-1 -I/usr/include/apr-1.0 -I/usr/include/subversion-1 -I/usr/include/libmemcached -I/usr/include/libmongoc-1.0 -I/usr/include/libbson-1.0 -I/usr/include/freerdp3 -I/usr/include/winpr3 hydra-pop3.c:349:22: warning: ‘%s’ directive writing up to 4095 bytes into a region of size 500 [-Wformat-overflow=] 349 | sprintf(buffer, "%s\r\n", buf1); | ^~ ~~~~ In file included from /usr/include/stdio.h:970, from hydra.h:3, from hydra-mod.h:4, from hydra-pop3.c:1: In function ‘sprintf’, inlined from ‘start_pop3’ at hydra-pop3.c:349:5: /usr/include/x86_64-linux-gnu/bits/stdio2.h:30:10: note: ‘__builtin___sprintf_chk’ output between 3 and 4098 bytes into a destination of size 500 30 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 31 | __glibc_objsize (__s), __fmt, | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 32 | __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~ hydra-pop3.c: In function ‘start_pop3’: hydra-pop3.c:363:22: warning: ‘%s’ directive writing up to 4095 bytes into a region of size 500 [-Wformat-overflow=] 363 | sprintf(buffer, "%s\r\n", buf1); | ^~ ~~~~ In function ‘sprintf’, inlined from ‘start_pop3’ at hydra-pop3.c:363:5: /usr/include/x86_64-linux-gnu/bits/stdio2.h:30:10: note: ‘__builtin___sprintf_chk’ output between 3 and 4098 bytes into a destination of size 500 30 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 31 | __glibc_objsize (__s), __fmt, | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 32 | __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~ In file included from /usr/include/libbson-1.0/bson/bson-compat.h:35, from /usr/include/libbson-1.0/bson/bson.h:23, from /usr/include/libmongoc-1.0/mongoc/mongoc.h:22, from /usr/include/libmongoc-1.0/mongoc.h:18, from hydra-mongodb.c:6: /usr/include/libbson-1.0/bson/bson-macros.h:213:34: error: expected ‘;’ before ‘void’ 213 | static BSON_INLINE BSON_NORETURN void | ^~~~ /usr/include/libbson-1.0/bson/bson-macros.h:220:34: error: expected ‘;’ before ‘void’ 220 | static BSON_INLINE BSON_NORETURN void | ^~~~ x86_64-linux-gnu-gcc -I. -Wall -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/hydra-9.5=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -fcommon -pie -fPIE -fstack-protector-all --param ssp-buffer-size=4 -D_FORTIFY_SOURCE=2 -Wl,-z,now -Wl,-z,relro -Wl,--allow-multiple-definition -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/hydra-9.5=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE -c hydra-mysql.c -DHAVE_MYSQL_MYSQL_H -DLIBOPENSSL -DLIBNCURSES -DLIBFIREBIRD -DLIBIDN -DHAVE_PR29_H -DHAVE_PCRE -DLIBMYSQLCLIENT -DLIBPOSTGRES -DLIBSVN -DLIBSSH -DHAVE_ZLIB -DHAVE_GCRYPT -DLIBMCACHED -DLIBMONGODB -DLIBBSON -DLIBFREERDP -DLIBWINPR3 -DHAVE_MATH_H -I/usr/include/mysql -I/usr/include -I/usr/include -I/usr/include -I/usr/include -I/usr/include/postgresql -I/usr/include -I/usr/include/subversion-1 -I/usr/include/apr-1.0 -I/usr/include/subversion-1 -I/usr/include/libmemcached -I/usr/include/libmongoc-1.0 -I/usr/include/libbson-1.0 -I/usr/include/freerdp3 -I/usr/include/winpr3 hydra-mongodb.c: In function ‘require_auth’: hydra-mongodb.c:44:24: warning: pointer targets in passing argument 2 of ‘hydra_send’ differ in signedness [-Wpointer-sign] 44 | if (hydra_send(sock, m_hdr, sizeof(m_hdr), 0) > 0) { | ^~~~~ | | | unsigned char * In file included from hydra-mongodb.c:9: hydra-mod.h:38:49: note: expected ‘char *’ but argument is of type ‘unsigned char *’ 38 | extern int32_t hydra_send(int32_t socket, char *buf, uint32_t size, int32_t options); | ~~~~~~^~~ hydra-mongodb.c: In function ‘start_mongodb’: hydra-mongodb.c:58:22: warning: unused variable ‘database’ [-Wunused-variable] 58 | mongoc_database_t *database; | ^~~~~~~~ make[1]: *** [Makefile:81: hydra-mongodb.o] Error 1 make[1]: *** Waiting for unfinished jobs.... hydra-smb.c: In function ‘HashLM’: hydra-smb.c:265:5: warning: ‘__builtin_strncpy’ output may be truncated copying 14 bytes from a string of length 15 [-Wstringop-truncation] 265 | strncpy((char *)password, (char *)pass, 14); | ^ make[1]: Leaving directory '/build/reproducible-path/hydra-9.5' dh_auto_build: error: make -j8 returned exit code 2 make: *** [debian/rules:16: binary] Error 25 dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2