[Debian-med-packaging] Bug#1097666: pvrg-jpeg: ftbfs with GCC-15

[Matthias Klose]

Package: src:pvrg-jpeg
Version: 1.2.1+dfsg1-8
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/pvrg-jpeg_1.2.1+dfsg1-8_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

[...]
      |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:705:1: error: number of arguments doesn’t match prototype
  705 | {
      | ^
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:62:13: error: prototype declaration
   62 | extern void UseDCHuffmanCheckingGEMSBug();
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:714:14: warning: too many arguments for format [-Wformat-extra-args]
  714 |       printf("GE table selection bug detected - assuming predictor bug also\n",index);
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c: In function ‘SetACHuffman’:
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:738:6: warning: old-style function definition [-Wold-style-definition]
  738 | void SetACHuffman(index)
      |      ^~~~~~~~~~~~
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:740:1: error: number of arguments doesn’t match prototype
  740 | {
      | ^
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:63:13: error: prototype declaration
   63 | extern void SetACHuffman();
      |             ^~~~~~~~~~~~
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c: In function ‘SetDCHuffman’:
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:755:6: warning: old-style function definition [-Wold-style-definition]
  755 | void SetDCHuffman(index)
      |      ^~~~~~~~~~~~
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:757:1: error: number of arguments doesn’t match prototype
  757 | {
      | ^
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:64:13: error: prototype declaration
   64 | extern void SetDCHuffman();
      |             ^~~~~~~~~~~~
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c: In function ‘PrintHuffman’:
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:792:7: error: too many arguments to function ‘PrintTable’; expected 0, have 1
  792 |       PrintTable(Xhuff->huffval);
      |       ^~~~~~~~~~ ~~~~~~~~~~~~~~
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:66:13: note: declared here
   66 | extern void PrintTable();
      |             ^~~~~~~~~~
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:798:7: error: too many arguments to function ‘PrintTable’; expected 0, have 1
  798 |       PrintTable(Ehuff->ehufco);
      |       ^~~~~~~~~~ ~~~~~~~~~~~~~
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:66:13: note: declared here
   66 | extern void PrintTable();
      |             ^~~~~~~~~~
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:800:7: error: too many arguments to function ‘PrintTable’; expected 0, have 1
  800 |       PrintTable(Ehuff->ehufsi);
      |       ^~~~~~~~~~ ~~~~~~~~~~~~~
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:66:13: note: declared here
   66 | extern void PrintTable();
      |             ^~~~~~~~~~
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c: In function ‘PrintTable’:
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:853:6: warning: old-style function definition [-Wold-style-definition]
  853 | void PrintTable(table)
      |      ^~~~~~~~~~
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:855:1: error: number of arguments doesn’t match prototype
  855 | {
      | ^
/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/huffman.c:66:13: error: prototype declaration
   66 | extern void PrintTable();
      |             ^~~~~~~~~~
make[3]: *** [CMakeFiles/pvrg-jpeg.dir/build.make:184: CMakeFiles/pvrg-jpeg.dir/stream.o] Error 1
make[3]: *** [CMakeFiles/pvrg-jpeg.dir/build.make:114: CMakeFiles/pvrg-jpeg.dir/huffman.o] Error 1
make[3]: *** [CMakeFiles/pvrg-jpeg.dir/build.make:86: CMakeFiles/pvrg-jpeg.dir/jpeg.o] Error 1
make[3]: Leaving directory '/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/obj-x86_64-linux-gnu'
make[2]: *** [CMakeFiles/Makefile2:90: CMakeFiles/pvrg-jpeg.dir/all] Error 2
make[2]: Leaving directory '/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/obj-x86_64-linux-gnu'
make[1]: *** [Makefile:159: all] Error 2
make[1]: Leaving directory '/build/reproducible-path/pvrg-jpeg-1.2.1+dfsg1/obj-x86_64-linux-gnu'
dh_auto_build: error: cd obj-x86_64-linux-gnu && make -j8 "INSTALL=install --strip-program=true" VERBOSE=1 returned exit code 2
make: *** [debian/rules:22: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2