This is an auto-filled bug because media-libs/libnsgif calls cc directly.
The issue was originally discovered on amd64, but it may be reproducible on other arches as well.
Attached build log and emerge --info.
To reproduce this issue you may want to temporarily move the /usr/bin/cc - /usr/bin/gcc binaries.
Created attachment 633832 [details]
build log and emerge --info