Updating to 2.2.0_7 - Berkeley db4 not found

[Frank Steinborn]

Hello,

I tried to update apache-2.2.0_6 to apache-2.2.0_7 with the following
build options: WITH_SSL_MODULES=1 WITH_BERKELEYDB=db41 via
portupgrade. I installed _6 with the same buildoptions without
problems. But the configure script stops here:

checking for Berkeley DB 4.1 in /usr/local...
checking db41/dh.h usability... no
checking db41/dh.h presence... no
checking for db41/dh.h... no
configure: error: Berkeley db4 not found
configure failed for srclib/apr-util
===>  Script "configure" failed unexpectedly.

Berkeley DB 4.1 is installed, though (from pkg_info):
db41-4.1.25_3       The Berkeley DB package, revision 4.1

I'm stuck at this point. Any hints how to handle this? I guess it's a
bug though, I'll contact clement about it, if I'm sure it's not a
simple thoughtlessness on my part.