[Gretl-devel] Build failures with gcc 15

Dear all, in the process of the new fedora 42 release, there was a mass rebuild of all the packages. Since most of the times there's a new gcc release as well against which the packages are built. There are often build failures because of this. Gretl also failed to build and as far as I can see it's because the default C standard in GCC 15 is C23, and C23 has three new keywords: `bool`, `true`, and `false`. https://kojipkgs.fedoraproject.org//work/tasks/3696/128383696/build.log Build: https://koji.fedoraproject.org/koji/taskinfo?taskID=128383696 It would be really great if we could fix that upstream, otherwise I will try to create a patch and/or try to compile it with an older C standard. Thanks a lot in advance! Best regards, Johannes