Bug#1097301: linuxtv-dvb-apps: ftbfs with GCC-15

Matthias Klose doko at debian.org
Mon Feb 17 17:34:50 GMT 2025


Package: src:linuxtv-dvb-apps
Version: 1.1.1+rev1500-2
Severity: important
Tags: sid forky
User: debian-gcc at 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/linuxtv-dvb-apps_1.1.1+rev1500-2_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

[...]
In file included from /usr/include/stdio.h:970,
                 from lsdvb.c:24:
In function ‘sprintf’,
    inlined from ‘get_frontend_entry’ at lsdvb.c:74:3:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:30:10: note: ‘__builtin___sprintf_chk’ output between 16 and 271 bytes into a destination of size 64
   30 |   return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   31 |                                   __glibc_objsize (__s), __fmt,
      |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   32 |                                   __va_arg_pack ());
      |                                   ~~~~~~~~~~~~~~~~~
lsdvb.c: In function ‘main’:
lsdvb.c:292:54: warning: ‘%s’ directive writing up to 63 bytes into a region of size between 36 and 46 [-Wformat-overflow=]
  292 |                         sprintf(fedev, "%s/adapter%d/%s", DVB_DIR, adapter, frontend);
      |                                                      ^~                     ~~~~~~~~
In function ‘sprintf’,
    inlined from ‘main’ at lsdvb.c:292:4:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:30:10: note: ‘__builtin___sprintf_chk’ output between 19 and 92 bytes into a destination of size 64
   30 |   return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   31 |                                   __glibc_objsize (__s), __fmt,
      |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   32 |                                   __va_arg_pack ());
      |                                   ~~~~~~~~~~~~~~~~~
make[4]: Leaving directory '/build/reproducible-path/linuxtv-dvb-apps-1.1.1+rev1500/util/lsdvb'
make -C alevt all
make[4]: Entering directory '/build/reproducible-path/linuxtv-dvb-apps-1.1.1+rev1500/util/alevt'
cc -O -g -w -DVERSION=\"1.7.0\" -DWITH_PNG -DUSE_LIBZVBI -I/include -Wdate-time -D_FORTIFY_SOURCE=2  -c -o main.o main.c
cc -O -g -w -DVERSION=\"1.7.0\" -DWITH_PNG -DUSE_LIBZVBI -I/include -Wdate-time -D_FORTIFY_SOURCE=2  -c -o ui.o ui.c
cc bdf2xbm.c -o bdf2xbm
cc -O -g -w -DVERSION=\"1.7.0\" -DWITH_PNG -DUSE_LIBZVBI -I/include -Wdate-time -D_FORTIFY_SOURCE=2  -c -o fdset.o fdset.c
cc -O -g -w -DVERSION=\"1.7.0\" -DWITH_PNG -DUSE_LIBZVBI -I/include -Wdate-time -D_FORTIFY_SOURCE=2  -c -o vbi.o vbi.c
cc -O -g -w -DVERSION=\"1.7.0\" -DWITH_PNG -DUSE_LIBZVBI -I/include -Wdate-time -D_FORTIFY_SOURCE=2  -c -o cache.o cache.c
cc -O -g -w -DVERSION=\"1.7.0\" -DWITH_PNG -DUSE_LIBZVBI -I/include -Wdate-time -D_FORTIFY_SOURCE=2  -c -o help.o help.c
cc -O -g -w -DVERSION=\"1.7.0\" -DWITH_PNG -DUSE_LIBZVBI -I/include -Wdate-time -D_FORTIFY_SOURCE=2  -c -o search.o search.c
search.c: In function ‘search_next’:
search.c:120:9: error: passing argument 5 of ‘s->cache->op->foreach_pg’ from incompatible pointer type [-Wincompatible-pointer-types]
  120 |         search_pg, s);
      |         ^~~~~~~~~
      |         |
      |         int (*)(struct search *, struct vt_page *)
search.c:120:9: note: expected ‘int (*)(void)’ but argument is of type ‘int (*)(struct search *, struct vt_page *)’
search.c:57:12: note: ‘search_pg’ declared here
   57 | static int search_pg(struct search *s, struct vt_page *vtp)
      |            ^~~~~~~~~
cache.c: In function ‘cache_foreach_pg’:
cache.c:170:17: error: too many arguments to function ‘func’; expected 0, have 2
  170 |             if (func(data, vtp))
      |                 ^~~~ ~~~~
make[4]: *** [<builtin>: search.o] Error 1
make[4]: *** Waiting for unfinished jobs....
make[4]: *** [<builtin>: cache.o] Error 1
ui.c: In function ‘do_next_pgno’:
ui.c:143:57: error: passing argument 5 of ‘w->vbi->cache->op->foreach_pg’ from incompatible pointer type [-Wincompatible-pointer-types]
  143 |                     pgno, subno, dir, subs ? _next_subno:_next_pgno, &arg))
      |                                       ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
      |                                                         |
      |                                                         int (*)(int *, struct vt_page *)
ui.c:143:57: note: expected ‘int (*)(void)’ but argument is of type ‘int (*)(int *, struct vt_page *)’
make[4]: *** [<builtin>: ui.o] Error 1
make[4]: Leaving directory '/build/reproducible-path/linuxtv-dvb-apps-1.1.1+rev1500/util/alevt'
make[3]: *** [Makefile:22: all] Error 2
make[3]: Leaving directory '/build/reproducible-path/linuxtv-dvb-apps-1.1.1+rev1500/util'
make[2]: *** [Makefile:14: all] Error 2
make[2]: Leaving directory '/build/reproducible-path/linuxtv-dvb-apps-1.1.1+rev1500'
dh_auto_build: error: make -j8 "INSTALL=install --strip-program=true" returned exit code 2
make[1]: *** [debian/rules:10: override_dh_auto_build] Error 25
make[1]: Leaving directory '/build/reproducible-path/linuxtv-dvb-apps-1.1.1+rev1500'
make: *** [debian/rules:6: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2



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