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Bug#1096784: gsequencer: ftbfs with GCC-15



Package: src:gsequencer
Version: 7.5.5-1
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/gsequencer_7.5.5-1_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

[...]
      |                                         ~~~~~~~~~^~~~~~
ags/test/file/ags_file_test.c:248:22: warning: assignment to ‘AgsFileIdRef *’ {aka ‘struct _AgsFileIdRef *’} from incompatible pointer type ‘GObject *’ {aka ‘struct _GObject *’} [-Wincompatible-pointer-types]
  248 |   CU_ASSERT((current = ags_file_find_id_ref_by_reference(file,
      |                      ^
ags/test/file/ags_file_test.c:252:22: warning: assignment to ‘AgsFileIdRef *’ {aka ‘struct _AgsFileIdRef *’} from incompatible pointer type ‘GObject *’ {aka ‘struct _GObject *’} [-Wincompatible-pointer-types]
  252 |   CU_ASSERT((current = ags_file_find_id_ref_by_reference(file,
      |                      ^
ags/test/file/ags_file_test.c:256:22: warning: assignment to ‘AgsFileIdRef *’ {aka ‘struct _AgsFileIdRef *’} from incompatible pointer type ‘GObject *’ {aka ‘struct _GObject *’} [-Wincompatible-pointer-types]
  256 |   CU_ASSERT((current = ags_file_find_id_ref_by_reference(file,
      |                      ^
ags/test/file/ags_file_test.c: In function ‘ags_file_test_add_lookup’:
ags/test/file/ags_file_test.c:274:34: warning: passing argument 2 of ‘ags_file_add_lookup’ from incompatible pointer type [-Wincompatible-pointer-types]
  274 |                       file_lookup[0]);
      |                       ~~~~~~~~~~~^~~
      |                                  |
      |                                  AgsFileIdRef * {aka struct _AgsFileIdRef *}
./ags/file/ags_file.h:189:50: note: expected ‘GObject *’ {aka ‘struct _GObject *’} but argument is of type ‘AgsFileIdRef *’ {aka ‘struct _AgsFileIdRef *’}
  189 | void ags_file_add_lookup(AgsFile *file, GObject *file_lookup);
      |                                         ~~~~~~~~~^~~~~~~~~~~
ags/test/file/ags_file_test.c:279:34: warning: passing argument 2 of ‘ags_file_add_lookup’ from incompatible pointer type [-Wincompatible-pointer-types]
  279 |                       file_lookup[1]);
      |                       ~~~~~~~~~~~^~~
      |                                  |
      |                                  AgsFileIdRef * {aka struct _AgsFileIdRef *}
./ags/file/ags_file.h:189:50: note: expected ‘GObject *’ {aka ‘struct _GObject *’} but argument is of type ‘AgsFileIdRef *’ {aka ‘struct _AgsFileIdRef *’}
  189 | void ags_file_add_lookup(AgsFile *file, GObject *file_lookup);
      |                                         ~~~~~~~~~^~~~~~~~~~~
ags/test/file/ags_file_test.c:284:34: warning: passing argument 2 of ‘ags_file_add_lookup’ from incompatible pointer type [-Wincompatible-pointer-types]
  284 |                       file_lookup[2]);
      |                       ~~~~~~~~~~~^~~
      |                                  |
      |                                  AgsFileIdRef * {aka struct _AgsFileIdRef *}
./ags/file/ags_file.h:189:50: note: expected ‘GObject *’ {aka ‘struct _GObject *’} but argument is of type ‘AgsFileIdRef *’ {aka ‘struct _AgsFileIdRef *’}
  189 | void ags_file_add_lookup(AgsFile *file, GObject *file_lookup);
      |                                         ~~~~~~~~~^~~~~~~~~~~
ags/test/file/ags_file_test.c: In function ‘ags_file_test_add_launch’:
ags/test/file/ags_file_test.c:310:34: warning: passing argument 2 of ‘ags_file_add_launch’ from incompatible pointer type [-Wincompatible-pointer-types]
  310 |                       file_launch[0]);
      |                       ~~~~~~~~~~~^~~
      |                                  |
      |                                  AgsFileIdRef * {aka struct _AgsFileIdRef *}
./ags/file/ags_file.h:191:50: note: expected ‘GObject *’ {aka ‘struct _GObject *’} but argument is of type ‘AgsFileIdRef *’ {aka ‘struct _AgsFileIdRef *’}
  191 | void ags_file_add_launch(AgsFile *file, GObject *file_launch);
      |                                         ~~~~~~~~~^~~~~~~~~~~
ags/test/file/ags_file_test.c:315:34: warning: passing argument 2 of ‘ags_file_add_launch’ from incompatible pointer type [-Wincompatible-pointer-types]
  315 |                       file_launch[1]);
      |                       ~~~~~~~~~~~^~~
      |                                  |
      |                                  AgsFileIdRef * {aka struct _AgsFileIdRef *}
./ags/file/ags_file.h:191:50: note: expected ‘GObject *’ {aka ‘struct _GObject *’} but argument is of type ‘AgsFileIdRef *’ {aka ‘struct _AgsFileIdRef *’}
  191 | void ags_file_add_launch(AgsFile *file, GObject *file_launch);
      |                                         ~~~~~~~~~^~~~~~~~~~~
ags/test/file/ags_file_test.c:320:34: warning: passing argument 2 of ‘ags_file_add_launch’ from incompatible pointer type [-Wincompatible-pointer-types]
  320 |                       file_launch[2]);
      |                       ~~~~~~~~~~~^~~
      |                                  |
      |                                  AgsFileIdRef * {aka struct _AgsFileIdRef *}
./ags/file/ags_file.h:191:50: note: expected ‘GObject *’ {aka ‘struct _GObject *’} but argument is of type ‘AgsFileIdRef *’ {aka ‘struct _AgsFileIdRef *’}
  191 | void ags_file_add_launch(AgsFile *file, GObject *file_launch);
      |                                         ~~~~~~~~~^~~~~~~~~~~
make[4]: Leaving directory '/build/reproducible-path/gsequencer-7.5.5'
make[3]: *** [Makefile:34531: check-am] Error 2
make[3]: Leaving directory '/build/reproducible-path/gsequencer-7.5.5'
make[2]: *** [Makefile:31883: check-recursive] Error 1
make[2]: Leaving directory '/build/reproducible-path/gsequencer-7.5.5'
dh_auto_test: error: make -j8 check "TESTSUITEFLAGS=-j8 --verbose" VERBOSE=1 "CFLAGS=-fpermissive -Wno-error=incompatible-pointer-types -Wno-error=pedantic " returned exit code 2
make[1]: *** [debian/rules:51: override_dh_auto_test] Error 25
make[1]: Leaving directory '/build/reproducible-path/gsequencer-7.5.5'
make: *** [debian/rules:39: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2


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