On 9/28/25 07:35, Sandro Tosi wrote:
hey Stefan,
im posting a recent build log showing the failures when building
gkrellm-2.4.0 with gcc-15.2: https://paste.debian.net/hidden/6601e8a7/
Hope this may help with your code changes.
I can actually reproduce it with older clang/gcc via "-std=gnu23".
The thing with C23 is that the change does not really bring any security
to function pointers because in glib/gtk/gkrellm function pointers
usually have a "void *data" argument but the callback functions are
taking a "SomeStruct *data" instead so virtually every function pointer
is cast, thereby hiding incompatibilities the same way as the ancient
empty argument syntax.
I'll see if I can finish gkrellm 2.5.0 in the next 1-2 weeks which fixes
this for now by setting a fixed C standard (commit
ee3f77a2654578519e9a6b5ea819f73b873fc6f1).
Passing a standard via CFLAGS should already work fine for gkrellm 2.4.0
as well.
Regards,
Stefan
