Bug#1096429: checkpw: ftbfs with GCC-15
Package: src:checkpw
Version: 1.02-5
Severity: important
Tags: sid forky
User: debian-gcc@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/checkpw_1.02-5_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
[...]
13 | /*@null@*//*@out@*/char *alloc(n)
| ^~~~~
alloc.c:15:1: error: number of arguments doesn’t match prototype
15 | {
| ^
In file included from alloc.c:1:
alloc.h:4:33: error: prototype declaration
4 | extern /*@null@*//*@out@*/char *alloc();
| ^~~~~
install.c:80:22: error: passing argument 2 of ‘buffer_init’ from incompatible pointer type [-Wincompatible-pointer-types]
80 | buffer_init(&ssout,write,fdout,outbuf,sizeof outbuf);
| ^~~~~
| |
| ssize_t (*)(int, const void *, size_t) {aka long int (*)(int, const void *, long unsigned int)}
buffer.h:18:34: note: expected ‘ssize_t (*)(void)’ {aka ‘long int (*)(void)’} but argument is of type ‘ssize_t (*)(int, const void *, size_t)’ {aka ‘long int (*)(int, const void *, long unsigned int)’}
18 | extern void buffer_init(buffer *,ssize_t (*)(),int,char *,unsigned int);
| ^~~~~~~~~~~~~
/usr/include/unistd.h:378:16: note: ‘write’ declared here
378 | extern ssize_t write (int __fd, const void *__buf, size_t __n) __wur
| ^~~~~
alloc.c: In function ‘alloc_free’:
alloc.c:24:6: warning: old-style function definition [-Wold-style-definition]
24 | void alloc_free(x)
| ^~~~~~~~~~
alloc.c:26:1: error: number of arguments doesn’t match prototype
26 | {
| ^
alloc.h:5:13: error: prototype declaration
5 | extern void alloc_free();
| ^~~~~~~~~~
install.c: In function ‘z’:
install.c:103:6: warning: old-style function definition [-Wold-style-definition]
103 | void z(home,subdir,file,len,uid,gid,mode)
| ^
install.c:122:22: error: passing argument 2 of ‘buffer_init’ from incompatible pointer type [-Wincompatible-pointer-types]
122 | buffer_init(&ssout,write,fdout,outbuf,sizeof outbuf);
| ^~~~~
| |
| ssize_t (*)(int, const void *, size_t) {aka long int (*)(int, const void *, long unsigned int)}
buffer.h:18:34: note: expected ‘ssize_t (*)(void)’ {aka ‘long int (*)(void)’} but argument is of type ‘ssize_t (*)(int, const void *, size_t)’ {aka ‘long int (*)(int, const void *, long unsigned int)’}
18 | extern void buffer_init(buffer *,ssize_t (*)(),int,char *,unsigned int);
| ^~~~~~~~~~~~~
/usr/include/unistd.h:378:16: note: ‘write’ declared here
378 | extern ssize_t write (int __fd, const void *__buf, size_t __n) __wur
| ^~~~~
make[1]: *** [Makefile:329: alloc.o] Error 1
make[1]: *** [Makefile:388: install.o] Error 1
In file included from auto-str.c:1:
buffer.h:14:61: error: initialization of ‘ssize_t (*)(void)’ {aka ‘long int (*)(void)’} from incompatible pointer type ‘ssize_t (*)(int, const void *, size_t)’ {aka ‘long int (*)(int, const void *, long unsigned int)’} [-Wincompatible-pointer-types]
14 | #define BUFFER_INIT(op,fd,buf,len) { (buf), 0, (len), (fd), (op) }
| ^
auto-str.c:7:12: note: in expansion of macro ‘BUFFER_INIT’
7 | buffer b = BUFFER_INIT(write,1,bspace,sizeof bspace);
| ^~~~~~~~~~~
buffer.h:14:61: note: (near initialization for ‘b.op’)
14 | #define BUFFER_INIT(op,fd,buf,len) { (buf), 0, (len), (fd), (op) }
| ^
auto-str.c:7:12: note: in expansion of macro ‘BUFFER_INIT’
7 | buffer b = BUFFER_INIT(write,1,bspace,sizeof bspace);
| ^~~~~~~~~~~
In file included from readwrite.h:4,
from auto-str.c:2:
/usr/include/unistd.h:378:16: note: ‘write’ declared here
378 | extern ssize_t write (int __fd, const void *__buf, size_t __n) __wur
| ^~~~~
make[1]: *** [Makefile:292: auto-str.o] Error 1
make[1]: Leaving directory '/build/reproducible-path/checkpw-1.02'
dh_auto_build: error: make -j8 "INSTALL=install --strip-program=true" returned exit code 2
make: *** [debian/rules:4: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
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