Created attachment 313073 [details] sys-devel/binutils-2.20.1-r1 Compiling binutils with Clang triggers an internal recursion limit in Clang. This was observed on Gentoo FreeBSD, but it is an artificial limit in the parser, so it should affect all platforms and architectures.
Created attachment 313077 [details, diff] Patch to fix sys-devel/binutils-2.20.1-r1 build failure Let me know if this is okay to commit.
Fixed in 3.1-r2.