Bug#1075580: togl: ftbfs with GCC-14

[Matthias Klose]

Package: src:togl
Version: 2.0-2
Severity: important
Tags: sid trixie
User: debian-gcc at lists.debian.org
Usertags: ftbfs-gcc-14

[This bug is 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-14/g++-14, but succeeds to build with gcc-13/g++-13. The
severity of this report will be raised before the trixie release.

The full build log can be found at:
http://qa-logs.debian.net/2024/07/01/togl_2.0-2_unstable_gccexp.log
The last lines of the build log are at the end of this report.

To build with GCC 14, either set CC=gcc-14 CXX=g++-14 explicitly,
or install the gcc, g++, gfortran, ... packages from experimental.

  apt-get -t=experimental install g++ 

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-14/porting_to.html

[...]
checking for gcc option to enable C11 features... none needed
checking how to run the C preprocessor... gcc -E
checking whether make sets $(MAKE)... yes
checking for ranlib... ranlib
checking for stdio.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for strings.h... yes
checking for sys/stat.h... yes
checking for sys/types.h... yes
checking for unistd.h... yes
checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking if the compiler understands -pipe... yes
checking whether byte ordering is bigendian... no
checking for sin... no
checking for main in -lieee... no
checking for main in -linet... no
checking for net/errno.h... no
checking for connect... yes
checking for gethostbyname... yes
checking dirent.h... yes
checking for errno.h... yes
checking for float.h... yes
checking for values.h... yes
checking for limits.h... yes
checking for stdlib.h... (cached) yes
checking for string.h... (cached) yes
checking for sys/wait.h... yes
checking for dlfcn.h... yes
checking for sys/param.h... yes
checking whether to link with stubs library... stubs
checking for autostereo directory... checking for autostereod... no
checking for Tcl private include files... Using srcdir found in tclConfig.sh: /usr/include/tcl8.6/tcl-private
checking for Tk private include files... Using srcdir found in tkConfig.sh: /usr/include/tcl8.6/tk-private
checking for X... libraries , headers 
checking for X11 header files... checking for pthread_mutex_init in -lpthread... yes
checking for building with threads... yes (default)
checking how to build libraries... shared
checking if 64bit support is requested... no
checking if 64bit Sparc VIS support is requested... no
checking if compiler supports visibility "hidden"... yes
checking if rpath support is requested... yes
checking system version... Linux-6.1.0-21-cloud-amd64
checking for dlopen in -ldl... yes
checking for ar... ar
checking for required early compiler flags...  _LARGEFILE64_SOURCE
checking for 64-bit integer type... using long
checking for build with symbols... no
checking for tclsh... /usr/bin/tclsh8.6
checking for wish... /usr/bin/wish8.6
configure: creating ./config.status
config.status: creating Makefile
config.status: creating pkgIndex.tcl
config.status: creating togl_ws.h
configure: WARNING: unrecognized options: --disable-maintainer-mode, --disable-dependency-tracking, --disable-silent-rules
touch debian/stamp-autotools
/usr/bin/make -C . 
make[1]: Entering directory '/<<PKGBUILDDIR>>'
gcc -DPACKAGE_NAME=\"Togl\" -DPACKAGE_TARNAME=\"togl\" -DPACKAGE_VERSION=\"2.0\" -DPACKAGE_STRING=\"Togl\ 2.0\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DHAVE_STDIO_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_STRINGS_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_UNISTD_H=1 -DSTDC_HEADERS=1 -DHAVE_LIMITS_H=1 -DHAVE_SYS_PARAM_H=1 -DUSE_THREAD_ALLOC=1 -D_REENTRANT=1 -D_THREAD_SAFE=1 -DTCL_THREADS=1 -DMODULE_SCOPE=extern\ __attribute__\(\(__visibility__\(\"hidden\"\)\)\) -D_LARGEFILE64_SOURCE=1 -DTCL_WIDE_INT_IS_LONG=1 -DUSE_TCL_STUBS=1 -DUSE_TK_STUBS=1 -DAUTOSTEREOD=\"\"  -I"/usr/include/tcl8.6/tcl-private/generic" -I"/usr/include/tcl8.6/tcl-private/unix" -I"/usr/include/tcl8.6/tk-private/generic" -I"/usr/include/tcl8.6/tk-private/unix" -I"/usr/include/tcl8.6/tk-private/generic/ttk"     -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -pipe -O2 -fomit-frame-pointer -Wall -Wno-implicit-int -fPIC -Wdate-time -D_FORTIFY_SOURCE=2 -c `echo togl.c` -o togl.o
togl.c: In function ‘Togl_Init’:
togl.c:928:26: error: assignment to ‘void (*)(struct Tk_Window_ *, Tk_ClassProcs *, void *)’ from incompatible pointer type ‘void (*)(struct Tk_Window_ *, const Tk_ClassProcs *, void *)’ [-Wincompatible-pointer-types]
  928 |         SetClassProcsPtr = tkStubsPtr->tk_SetClassProcs;
      |                          ^
make[1]: *** [Makefile:357: togl.o] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [/usr/share/cdbs/1/class/makefile.mk:77: debian/stamp-makefile-build] Error 2
dpkg-buildpackage: error: debian/rules build subprocess returned exit status 2