[Debian-med-packaging] Bug#1097160: libace-perl: ftbfs with GCC-15

[Matthias Klose]

Package: src:libace-perl
Version: 1.92-12
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/libace-perl_1.92-12_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

[...]
filsubs.c:600:3: note: call to ‘fclose’ here
  600 |   fclose (fil) ;
      |   ^~~~~~~~~~~~
gcc -g -Wall -O2 -DACEDB4 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libace-perl-1.92=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I. -I./wh -I/usr/include/tirpc -DLINUX -c -o heap.o heap.c
gcc -g -Wall -O2 -DACEDB4 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libace-perl-1.92=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I. -I./wh -I/usr/include/tirpc -DLINUX -c -o timesubs.o timesubs.c
gcc -g -Wall -O2 -DACEDB4 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libace-perl-1.92=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I. -I./wh -I/usr/include/tirpc -DLINUX -c -o bump.o bump.c
In file included from /usr/include/unistd.h:1217,
                 from ./wh/mystdlib.h:180:
In function ‘getwd’,
    inlined from ‘filDoName’ at filsubs.c:410:5:
/usr/include/x86_64-linux-gnu/bits/unistd.h:127:12: warning: ‘__getwd_chk’ specified size 18446744073709551615 exceeds maximum object size 9223372036854775807 [-Wstringop-overflow=]
  127 |     return __getwd_chk (__buf, __glibc_objsize (__buf));
      |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
filsubs.c: In function ‘filDoName’:
filsubs.c:410:5: note: destination object allocated here
  410 |     filAddDir (getwd (stackText (full, 0))) ;
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/x86_64-linux-gnu/bits/unistd.h:23:
/usr/include/x86_64-linux-gnu/bits/unistd-decl.h:113:14: note: in a call to function ‘__getwd_chk’ declared with attribute ‘access (write_only, 1, 2)’
  113 | extern char *__getwd_chk (char *__buf, size_t buflen)
      |              ^~~~~~~~~~~
In function ‘getwd’,
    inlined from ‘filDoName’ at filsubs.c:410:5:
/usr/include/x86_64-linux-gnu/bits/unistd.h:128:10: warning: call to ‘__getwd_warn’ declared with attribute warning: please use getcwd instead, as getwd doesn't specify buffer size [-Wattribute-warning]
  128 |   return __getwd_warn (__buf);
      |          ^~~~~~~~~~~~~~~~~~~~
gcc -g -Wall -O2 -DACEDB4 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libace-perl-1.92=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I. -I./wh -I/usr/include/tirpc -DLINUX -c -o randsubs.o randsubs.c
gcc -g -Wall -O2 -DACEDB4 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libace-perl-1.92=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I. -I./wh -I/usr/include/tirpc -DLINUX -c -o call.o call.c
gcc -g -Wall -O2 -DACEDB4 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libace-perl-1.92=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I. -I./wh -I/usr/include/tirpc -DLINUX -c -o menu.o menu.c
RPC.xs: In function ‘not_here’:
RPC.xs:16:1: warning: old-style function definition [-Wold-style-definition]
   16 | not_here(s)
      | ^~~~~~~~
RPC.xs: In function ‘constant’:
RPC.xs:24:1: warning: old-style function definition [-Wold-style-definition]
   24 | constant(name, arg)
      | ^~~~~~~~
call.c: In function ‘call’:
call.c:72:8: error: too many arguments to function ‘((CALL *)(calls->base + (sizetype)(calls->size * i)))->func’; expected 0, have 1
   72 |       (*(arr(calls,i,CALL).func))(args) ;
      |       ~^~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~
call.c:31:12: note: declared here
   31 |   CallFunc func ;
      |            ^~~~
make[4]: *** [<builtin>: call.o] Error 1
make[4]: *** Waiting for unfinished jobs....
menu.c: In function ‘menuAddItem’:
menu.c:123:7: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
  123 |     { for (below = menu->items ;
      |       ^~~
menu.c:126:7: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’
  126 |       if (!below)
      |       ^~
timesubs.c: In function ‘timeDiffMonths’:
timesubs.c:487:6: warning: ‘wantMonth1’ may be used uninitialized [-Wmaybe-uninitialized]
  487 |   if (!wantMonth1 || !wantMonth2)
      |      ^
timesubs.c:480:8: note: ‘wantMonth1’ was declared here
  480 |   BOOL wantMonth1, wantDay1, wantHours1, wantMins1, wantSecs1;
      |        ^~~~~~~~~~
make[4]: Leaving directory '/build/reproducible-path/libace-perl-1.92/acelib'
make[3]: *** [Makefile:866: ../acelib/libaceperl.a] Error 2
make[3]: Leaving directory '/build/reproducible-path/libace-perl-1.92/RPC'
make[2]: *** [Makefile:687: subdirs] Error 2
make[2]: Leaving directory '/build/reproducible-path/libace-perl-1.92'
dh_auto_build: error: make -j8 "INSTALL=install --strip-program=true" "OPTIMIZE=-g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libace-perl-1.92=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection" LD_RUN_PATH= "OTHERLDFLAGS=-Wl,-z,relro -Wl,-z,now" returned exit code 2
make[1]: *** [debian/rules:34: override_dh_auto_build] Error 25
make[1]: Leaving directory '/build/reproducible-path/libace-perl-1.92'
make: *** [debian/rules:14: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2