On Fri, 30 Mar 2018, Neal Becker wrote:
There's a bug in gcc-7.3.1 that causes a crash on some code I
need. Is it
safe to install gcc-8 from rawhide on F27?
You can try installing the gcc package from rawhide (or probably better
the F28 repository, currently at beta), but the usual problem with doing
this sort of thing is that you find you have to update a lot of dependent
packages as well, and it ends up simpler and probably safer just to update
the whole system to the later version.
In the case of gcc you might be okay to do it, as I don't think there are
many dependent packages and they look fairly self-contained but it may
depend on what else is installed.
There are also alternatives you could try, for example if it is a package
you could use mock to try building it under F28, or you could build your
software an F28 docker container.