Package: src:xcolorsel
Version: 1.1a-23
Severity: important
Tags: sid forky
User: debian-...@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/xcolorsel_1.1a-23_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

[...]
make[2]: Entering directory '/build/reproducible-path/xcolorsel-1.1a'
make[2]: Nothing to be done for 'Makefiles'.
make[2]: Leaving directory '/build/reproducible-path/xcolorsel-1.1a'
make includes
make[2]: Entering directory '/build/reproducible-path/xcolorsel-1.1a'
make[2]: Nothing to be done for 'includes'.
make[2]: Leaving directory '/build/reproducible-path/xcolorsel-1.1a'
make depend
make[2]: Entering directory '/build/reproducible-path/xcolorsel-1.1a'
./app2head Xcolorsel-color.ad > appdef-c.h
./app2head Xcolorsel.ad > appdef.h
gccmakedep  --      -Dlinux -D__amd64__ -D_POSIX_C_SOURCE=199309L               
                -D_POSIX_SOURCE -D_XOPEN_SOURCE                                 
-D_BSD_SOURCE -D_SVID_SOURCE                                 
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64                                      
                             -DFUNCPROTO=15 -DNARROWPROTO    
-DHELPFILE=\"/usr/lib/X11/xcolorsel/Xcolorsel.help\"  -- RgbText.c RgbSink.c 
RgbSrc.c xcolorsel.c
make[2]: Leaving directory '/build/reproducible-path/xcolorsel-1.1a'
make[1]: Leaving directory '/build/reproducible-path/xcolorsel-1.1a'
   debian/rules override_dh_auto_build
make[1]: Entering directory '/build/reproducible-path/xcolorsel-1.1a'
/usr/bin/make XAWLIB=-lXaw3d CDEBUGFLAGS='-g -O2 
-Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/xcolorsel-1.1a=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -Wall' 
LOCAL_LDFLAGS='-Wl,-z,relro -Wl,-z,now'
make[2]: Entering directory '/build/reproducible-path/xcolorsel-1.1a'
gcc -g -O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/xcolorsel-1.1a=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -Wall   
      -Dlinux -D__amd64__ -D_POSIX_C_SOURCE=199309L                             
-D_POSIX_SOURCE -D_XOPEN_SOURCE                                 -D_BSD_SOURCE 
-D_SVID_SOURCE                                 -D_LARGEFILE_SOURCE 
-D_FILE_OFFSET_BITS=64                                                          
         -DFUNCPROTO=15 -DNARROWPROTO    
-DHELPFILE=\"/usr/lib/X11/xcolorsel/Xcolorsel.help\" -Wdate-time 
-D_FORTIFY_SOURCE=2  -c -o RgbText.o RgbText.c
In file included from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33,
                 from /usr/include/stdio.h:28,
                 from RgbText.c:77:
/usr/include/features.h:197:3: warning: #warning "_BSD_SOURCE and _SVID_SOURCE 
are deprecated, use _DEFAULT_SOURCE" [-Wcpp]
  197 | # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use 
_DEFAULT_SOURCE"
      |   ^~~~~~~
RgbText.c: In function ‘printfile’:
RgbText.c:549:7: warning: unused variable ‘fd’ [-Wunused-variable]
  549 | FILE *fd;
      |       ^~
RgbText.c:545:21: warning: unused variable ‘ptn’ [-Wunused-variable]
  545 | register char *ptr,*ptn;
      |                     ^~~
RgbText.c: In function ‘query_geometry’:
RgbText.c:883:16: warning: unused variable ‘requested’ [-Wunused-variable]
  883 | XtGeometryMask requested;
      |                ^~~~~~~~~
RgbText.c: In function ‘grab_color’:
RgbText.c:1135:8: warning: unused variable ‘mycolor’ [-Wunused-variable]
 1135 | XColor mycolor;
      |        ^~~~~~~
gcc -g -O2 -Werror=implicit-function-declaration 
-ffile-prefix-map=/build/reproducible-path/xcolorsel-1.1a=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 -Wall   
      -Dlinux -D__amd64__ -D_POSIX_C_SOURCE=199309L                             
-D_POSIX_SOURCE -D_XOPEN_SOURCE                                 -D_BSD_SOURCE 
-D_SVID_SOURCE                                 -D_LARGEFILE_SOURCE 
-D_FILE_OFFSET_BITS=64                                                          
         -DFUNCPROTO=15 -DNARROWPROTO    
-DHELPFILE=\"/usr/lib/X11/xcolorsel/Xcolorsel.help\" -Wdate-time 
-D_FORTIFY_SOURCE=2  -c -o RgbSink.o RgbSink.c
In file included from /usr/include/x86_64-linux-gnu/sys/types.h:25,
                 from /usr/include/X11/Xlib.h:38,
                 from /usr/include/X11/Intrinsic.h:53,
                 from /usr/include/X11/IntrinsicP.h:51,
                 from RgbSink.c:82:
/usr/include/features.h:197:3: warning: #warning "_BSD_SOURCE and _SVID_SOURCE 
are deprecated, use _DEFAULT_SOURCE" [-Wcpp]
  197 | # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use 
_DEFAULT_SOURCE"
      |   ^~~~~~~
RgbSink.c: In function ‘mydisp’:
RgbSink.c:197:2: error: too many arguments to function ‘((AsciiSinkClassRec 
*)rgbSinkClassRec.object_class.superclass)->text_sink_class.DisplayText’; 
expected 0, have 6
  197 | (*((AsciiSinkClassRec 
*)(rgbSinkClassRec.object_class.superclass))->text_sink_class.DisplayText)
      | 
~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  198 |                 (w, x, y, pos1, pos2, highlight);
      |                  ~
In file included from /usr/include/X11/Xaw3d/AsciiSinkP.h:68,
                 from RgbSinkP.h:88,
                 from RgbSink.c:85:
/usr/include/X11/Xaw3d/TextSinkP.h:79:10: note: declared here
   79 |   void (*DisplayText)();
      |          ^~~~~~~~~~~
RgbSink.c:191:5: warning: unused variable ‘tile’ [-Wunused-variable]
  191 | int tile,linum;
      |     ^~~~
make[2]: *** [<builtin>: RgbSink.o] Error 1
make[2]: Leaving directory '/build/reproducible-path/xcolorsel-1.1a'
make[1]: *** [debian/rules:15: override_dh_auto_build] Error 2
make[1]: Leaving directory '/build/reproducible-path/xcolorsel-1.1a'
make: *** [debian/rules:9: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2

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