After upgrading Apache 2.2, you sometimes encounter the error "[warn] (2)No such file or directory: Failed to enable the 'httpready' Accept Filter" on FreeBSD.

You need load "accf_http.ko" by kldload.
(kldload can loads dynamically kernel module without rebuilding kernel.)

# sudo kldload accf_http.ko

And enable it in loader.conf

# vi /boot/loader.conf

accf_http_load="YES"

After installing the latest ImageMagick (6.4.2), an error occured on MovableType image upload interface. The error said "/usr/local/lib/libMagickCore.so.1 Undefined symbol "pthread_equal".

A web source tells it causes because of misconfigure on some version of FreeBSD (I guess 5.x or earlier version. It works fine on my 6.2.)

An easy solution is disable "thread".
Try it on configure process.

# ./configure --without-threads