Package: src:libident
Version: 0.32-4
Severity: important
Tags: sid forky
User: debian-...@lists.debian.org
Usertags: ftbfs-gcc-15

[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/libident_0.32-4_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

[...]
checking for syslog.h... yes
checking for unistd.h... (cached) yes
checking for an ANSI C-conforming const... yes
checking for size_t... yes
checking if struct sockaddr has a sa_len member... no
checking for struct sockaddr_storage in sys/socket.h... yes
checking return type of signal handlers... void
checking for library containing socket... none required
checking for socklen_t in sys/socket.h... yes
checking for getaddrinfo... yes
checking for getnameinfo... yes
checking for gai_strerror... yes
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating config.h
config.status: executing depfiles commands
config.status: executing libtool commands
make[1]: Leaving directory '/build/reproducible-path/libident-0.32'
   dh_auto_build
        make -j8
make[1]: Entering directory '/build/reproducible-path/libident-0.32'
make  all-am
make[2]: Entering directory '/build/reproducible-path/libident-0.32'
gcc -DHAVE_CONFIG_H -I.   -Wdate-time -D_FORTIFY_SOURCE=2  -g -O2 
-Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c -o lookup-tester.o lookup-tester.c
/bin/bash ./libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I.   
-Wdate-time -D_FORTIFY_SOURCE=2  -g -O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c -o ident.lo ident.c
/bin/bash ./libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I.   
-Wdate-time -D_FORTIFY_SOURCE=2  -g -O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c -o id_open.lo id_open.c
/bin/bash ./libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I.   
-Wdate-time -D_FORTIFY_SOURCE=2  -g -O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c -o id_close.lo id_close.c
/bin/bash ./libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I.   
-Wdate-time -D_FORTIFY_SOURCE=2  -g -O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c -o id_query.lo id_query.c
/bin/bash ./libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I.   
-Wdate-time -D_FORTIFY_SOURCE=2  -g -O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c -o id_parse.lo id_parse.c
/bin/bash ./libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I.   
-Wdate-time -D_FORTIFY_SOURCE=2  -g -O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c -o support.lo support.c
gcc -DHAVE_CONFIG_H -I.   -Wdate-time -D_FORTIFY_SOURCE=2  -g -O2 
-Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c -o ident-tester.o ident-tester.c
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g 
-O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c id_query.c  -fPIC -DPIC -o 
.libs/id_query.o
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g 
-O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c ident.c  -fPIC -DPIC -o .libs/ident.o
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g 
-O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c id_open.c  -fPIC -DPIC -o 
.libs/id_open.o
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g 
-O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c id_parse.c  -fPIC -DPIC -o 
.libs/id_parse.o
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g 
-O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c support.c  -fPIC -DPIC -o 
.libs/support.o
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g 
-O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c id_close.c  -fPIC -DPIC -o 
.libs/id_close.o
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g 
-O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c id_close.c -o id_close.o >/dev/null 
2>&1
id_query.c: In function 'id_query':
id_query.c:59:13: error: assignment to 'void (*)(void)' from incompatible 
pointer type '__sighandler_t' {aka 'void (*)(int)'} 
[-Wincompatible-pointer-types]
   59 |     old_sig = signal(SIGPIPE, SIG_IGN);
      |             ^
In file included from id_query.c:13:
/usr/include/signal.h:72:16: note: '__sighandler_t' declared here
   72 | typedef void (*__sighandler_t) (int);
      |                ^~~~~~~~~~~~~~
id_query.c:63:21: error: passing argument 2 of 'signal' from incompatible 
pointer type [-Wincompatible-pointer-types]
   63 |     signal(SIGPIPE, old_sig);
      |                     ^~~~~~~
      |                     |
      |                     void (*)(void)
/usr/include/signal.h:88:57: note: expected '__sighandler_t' {aka 'void 
(*)(int)'} but argument is of type 'void (*)(void)'
   88 | extern __sighandler_t signal (int __sig, __sighandler_t __handler)
      |                                          ~~~~~~~~~~~~~~~^~~~~~~~~
/usr/include/signal.h:72:16: note: '__sighandler_t' declared here
   72 | typedef void (*__sighandler_t) (int);
      |                ^~~~~~~~~~~~~~
make[2]: *** [Makefile:598: id_query.lo] Error 1
make[2]: *** Waiting for unfinished jobs....
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g 
-O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c support.c -o support.o >/dev/null 
2>&1
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g 
-O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c ident.c -o ident.o >/dev/null 2>&1
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g 
-O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c id_open.c -o id_open.o >/dev/null 
2>&1
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g 
-O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/libident-0.32=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -c id_parse.c -o id_parse.o >/dev/null 
2>&1
make[2]: Leaving directory '/build/reproducible-path/libident-0.32'
make[1]: *** [Makefile:397: all] Error 2
make[1]: Leaving directory '/build/reproducible-path/libident-0.32'
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

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