• Describe the issue

I'd like to request the creation of a long-running side tag for porting Fedora to a C compiler that does not accept implicit function declarations by default. I would appreciate if you could set a custom dist tag (perhaps tc) and an RPM macro (toolchain_experiment works for me). This way, I can rebuild GCC into that side tag, without maintaining a branch. @jakub has agreed in principal to having a conditionally applied patch in the rawhide package.

Please exclude armhfp builds from the side tag. The architecture will likely be no longer in Fedora once the change happens.

devel thread: Long-running side tag for porting Fedora to C99 (no implicit decls)

• When do you need this? (YYYY/MM/DD)

2021-12-01

• When is this no longer needed or useful? (YYYY/MM/DD)

2023-04-01

• If we cannot complete your request, what is the impact?

Fedora may have trouble transitioning to GCC 13 (to be released in 2023).

@dmalcolm @mpolacek @codonell