buildworld WITH_CTF=1 breaks cc1plus on STABLE?

[Thomas Zander]

Good evening,

I am observing that doing a buildworld on stable (r202448) with
WITH_CTF=1 breaks /usr/libexec/cc1plus on my amd64. Doing so causes
cc1plus to crash with internal errors and ports like devel/popt don't
even make it through the configure stage ("fails sanity check").
Is this behaviour expected? Is it discouraged to build world WITH_CTF?

Regards.
Riggs