[Pkg-electronics-devel] Bug#1096763: gputils: ftbfs with GCC-15

[Matthias Klose]

Package: src:gputils
Version: 1.5.2-1
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/gputils_1.5.2-1_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

[...]
gptypes.h:30:3: error: cannot use keyword ‘false’ as enumeration constant
   30 |   false = (0 == 1),
      |   ^~~~~
gptypes.h:30:3: note: ‘false’ is a keyword with ‘-std=c23’ onwards
In file included from libgputils.h:28,
                 from gpcod.c:24:
gptypes.h:30:3: error: cannot use keyword ‘false’ as enumeration constant
   30 |   false = (0 == 1),
      |   ^~~~~
gptypes.h:30:3: note: ‘false’ is a keyword with ‘-std=c23’ onwards
make[3]: *** [Makefile:454: gpcfg.o] Error 1
make[3]: *** Waiting for unfinished jobs....
In file included from libgputils.h:28,
                 from gpcoffgen.c:25:
gptypes.h:30:3: error: cannot use keyword ‘false’ as enumeration constant
   30 |   false = (0 == 1),
      |   ^~~~~
gptypes.h:30:3: note: ‘false’ is a keyword with ‘-std=c23’ onwards
In file included from libgputils.h:28,
                 from gpbitarray.c:23:
gptypes.h:30:3: error: cannot use keyword ‘false’ as enumeration constant
   30 |   false = (0 == 1),
      |   ^~~~~
gptypes.h:30:3: note: ‘false’ is a keyword with ‘-std=c23’ onwards
gpcoffgen.c:1074:1: warning: conflicting types for ‘gp_coffgen_check_relocations’ due to enum/integer mismatch; have ‘void(const gp_object_t *, gp_boolean)’ {aka ‘void(const struct gp_object *, gp_boolean)’} [-Wenum-int-mismatch]
 1074 | gp_coffgen_check_relocations(const gp_object_t *Object, gp_boolean Enable_cinit_warns)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from libgputils.h:47:
gpcoffgen.h:91:13: note: previous declaration of ‘gp_coffgen_check_relocations’ with type ‘void(const gp_object_t *, unsigned int)’ {aka ‘void(const struct gp_object *, unsigned int)’}
   91 | extern void gp_coffgen_check_relocations(const gp_object_t *Object, unsigned int Behavior);
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
make[3]: *** [Makefile:454: gpcod.o] Error 1
In file included from libgputils.h:28,
                 from gparchive.c:23:
gptypes.h:30:3: error: cannot use keyword ‘false’ as enumeration constant
   30 |   false = (0 == 1),
      |   ^~~~~
gptypes.h:30:3: note: ‘false’ is a keyword with ‘-std=c23’ onwards
In file included from libgputils.h:28,
                 from gpcoffopt.c:34:
gptypes.h:30:3: error: cannot use keyword ‘false’ as enumeration constant
   30 |   false = (0 == 1),
      |   ^~~~~
gptypes.h:30:3: note: ‘false’ is a keyword with ‘-std=c23’ onwards
In file included from libgputils.h:28,
                 from gpcofflink.c:28:
gptypes.h:30:3: error: cannot use keyword ‘false’ as enumeration constant
   30 |   false = (0 == 1),
      |   ^~~~~
gptypes.h:30:3: note: ‘false’ is a keyword with ‘-std=c23’ onwards
make[3]: *** [Makefile:454: gpbitarray.o] Error 1
make[3]: *** [Makefile:454: gpcoffgen.o] Error 1
In file included from gpcfg.h:30,
                 from gpcfg-table.c:23:
gptypes.h:30:3: error: cannot use keyword ‘false’ as enumeration constant
   30 |   false = (0 == 1),
      |   ^~~~~
gptypes.h:30:3: note: ‘false’ is a keyword with ‘-std=c23’ onwards
make[3]: *** [Makefile:454: gparchive.o] Error 1
make[3]: *** [Makefile:454: gpcofflink.o] Error 1
make[3]: *** [Makefile:454: gpcoffopt.o] Error 1
make[3]: *** [Makefile:454: gpcfg-table.o] Error 1
make[3]: Leaving directory '/build/reproducible-path/gputils-1.5.2/libgputils'
make[2]: *** [Makefile:404: all-recursive] Error 1
make[2]: Leaving directory '/build/reproducible-path/gputils-1.5.2'
make[1]: *** [Makefile:343: all] Error 2
make[1]: Leaving directory '/build/reproducible-path/gputils-1.5.2'
dh_auto_build: error: make -j8 returned exit code 2
make: *** [debian/rules:6: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2