This bug should be made a blocker of : https://bugs.gentoo.org/show_bug.cgi?id=430702
And assigned to email@example.com
Created attachment 404858 [details]
@reporter. Please add the hardened-dev overlay and switch to the musl branch. This and the other bugs you've reported are "fixed" there. I say "fixed" because there are lots of issues to be resolved with musl and a lot of those patches are hacky and not yet ready for upstream.
Nonetheless, you're reports are appreciated and I'll use them to track progress in getting these patches cleaned up and upstreamed.
For m4 see
Ahhhhh, I did have the hardened overlay, but somehow missed the step of switching to the musl branch! I've switched over and am retrying various packages.
Fixed in m4-1.4.17
m4-1.4.17 is now stable for all musl relevant archs, so this can be closed.