Imagemagick jpeg decode delegate missing with OS X Homebrew install

Question

I recently converted from macports to homebrew and my previous macports Imagemagick install was working fine. I followed the homebrew instructions to chown /usr/local (somewhat

Answer 1

9monkeys solution here plus restarting Terminal worked for me.

Answer 2

Andrei, your solution got me in the right direction.

but it was a

brew install --force jpeg
brew install --force imagemagick

that got it working for me.

Answer 3

I just ran into this issue myself. While investigating I noticed symlinks to the jpeg jib were missing from /usr/local/lib. Can take of this with the following; just be sure to refer to the jpeg lib version in use, at the time of this post I am using 8c:

 ln -s /usr/local/Cellar/jpeg/8c/lib/libjpeg.8.dylib /usr/local/lib/libjpeg.8.dylib

 ln -s /usr/local/Cellar/jpeg/8c/lib/libjpeg.a /usr/local/lib/libjpeg.a

Then force homebrew to reinstall imagemagick:

 brew install --force imagemagick

Viola! Imagemagick will now show that a jpeg delegate is present.

Answer 4

Thanks for the direction pointed. My jpeg is also already in the delegate list, re-installing imagemagick doesn't work for me, but relinking jpeg does:

brew unlink jpeg
brew link jpeg

Answer 5

I had this problem and it turned out to be permissions.

sudo chown myuser:wheel /usr/local

then:

brew remove jpeg
brew remove imagemagick
brew install jpeg
brew install imagemagick

sorted it. Word of warning though: I had MySQL sittting in /usr/local/ too, and I inadvertently messed up permissions for that, so if you've got anything else important in there, be careful :-) Fixed that with:

sudo chown -R mysql:wheel /usr/local/mysql/data

Hope this helps someone!