Why can't I properly install ImageMagick on my mac?

Question

I run 'brew install imagemagick' and i get the following error:

==> ./configure --disable-osx-universal-binary --without-perl --prefix=/usr/local/
    Cellar      /imagemagick/6.8.7-0 --enable-shared --disable-static --without-pango 
    --with-modules --disable-op
==> make install
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [magick/libMagickCore-6.Q16.la] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [install-recursive] Error 1
make: *** [install] Error 2

I am trying to manipulate an image in ruby on rails using imagemagick. In my PicUploader file, I have the following:

# include CarrierWave::RMagick
include CarrierWave::MiniMagick
process :resize_to_fit => [50, 41]

When I try to upload a picture with RMagick commented out, I receive the following error:

Errno::ENOENT in ProfilesController#create
No such file or directory - identify

I thought maybe it was referring to RMagick, So I uncomment RMagick and try to do it again, and I get:

LoadError in ProfilesController#create
cannot load such file -- RMagick

I am using the carrierwave gem and I can get picture uploading to work without using the process method, but i can't get it to work if I want to resize the picture because imagemagick is not installing properly. How do I fix this? Thanks.

Answer 1

Did you install x11? I think you need to if you're on an OS later than Leopard or something.

https://gist.github.com/juandazapata/3182604

Hope this helps.

Answer 2

Sounds like you're missing identify, this has worked for me in the past:

brew uninstall imagemagick
brew install imagemagick --build-from-source

You may need to install png as well.

Assuming you have XCode and the command line tools installed, does installing libtool and then reinstalling imagemgick fix the issue?

brew install libtool --universal

Answer 3

Even though this is very old - I ended up here with this error message: '/usr/local/opt/imagemagick is not a valid keg'.

I imagine ImageMagick must have been installed some other way that brew was complaining about, I solved it with the nuclear option:

rm -r /usr/local/Cellar/imagemagick

Then just ran brew install imagemagick again and it worked.