pinentry-qt4-0.9.0_1 does not compile with libc++.

[Jerry]

FreeBSD 10.1-RELEASE #0 r274401

When attempting to build "pinentry-qt4", I am receiving the following error
message:

===>  Staging for pinentry-0.9.0_1
===>   pinentry-0.9.0_1 depends on executable: pinentry-qt4 - not found
===>    Verifying install for pinentry-qt4 in /usr/ports/security/pinentry-qt4
===>  pinentry-qt4-0.9.0_1 does not compile with libc++.

The build then obviously stops. Is this a known problem or should I file a
PR against it?

-- 
Jerry