The download url points to a file that does not exist for Imagemagick in the latest test suite.

wget ftp://ftp.imagemagick.org/pub/ImageM....4.0-2.tar.bz2 -O image-magick.tar.bz2
--08:43:36-- ftp://ftp.imagemagick.org/pub/ImageM....4.0-2.tar.bz2
=> `image-magick.tar.bz2'
Resolving ftp.imagemagick.org... 64.128.80.106
Connecting to ftp.imagemagick.org|64.128.80.106|:21... connected.
Logging in as anonymous ... Logged in!
==> SYST ... done. ==> PWD ... done.
==> TYPE I ... done. ==> CWD /pub/ImageMagick ... done.
==> PASV ... done. ==> RETR ImageMagick-6.4.0-2.tar.bz2 ...
No such file `ImageMagick-6.4.0-2.tar.bz2'.