Log Message:
Expanded patch-aa with a few #if cases.
This still works on NetBSD (1.6.2 tested) but also fixes the include error
on Linux (Debian 3 tested) and Solaris (9 tested).
Although DragonFlyBSD, FreeBSD and OpenBSD should work as before I have
not tried to build the package there.
Feedback whether it builds/works on Darwin/MacOS is also welcome.