Tuesday, October 19, 2010

ImageMagick, libjpeg, etc. on Mac OS X

Here's how I got ImageMagick with JPEG support to compile and run on Mac OS X 10.6 (Intel).

First, I got the ImageMagick Source Code via Subversion, per the instructions from http://www.imagemagick.org/script/subversion.php. Short version:
$ svn co \ 
https://www.imagemagick.org/subversion/ImageMagick/branches/ImageMagick-6.6.5 \ 
Then, I pulled libjpeg from the Independent JPEG Group. I had to extract the source code to a subdirectory of the ImageMagick directory called jpeg, i.e. /path/to/ImageMagick-6.6.5/jpeg.

Before I could compile any of the source code, I had to set three environment variables per this thread on the ImageMagick forums:
$  export CFLAGS="-isysroot /Developer/SDKs/MacOSX10.6.sdk \
  -arch ppc -arch i386"
$ export CXXFLAGS="-isysroot /Developer/SDKs/MacOSX10.6.sdk \
  -arch ppc -arch i386"
$  export LDFLAGS="-Wl,-syslibroot,/Developer/SDKs/MacOSX10.6.sdk \
  -arch ppc -arch i386"
Then, I compiled libjpeg via the via the standard ./configure and make dance. I used these commands:
$ cd jpeg
$ ./configure --prefix=/opt --disable-shared \
$ make -j 16
Now, I was able to configure ImageMagick:

Be aware that the LDFLAGS path is different than the include path! If everything went well, you can now go on to build the imagemagick suite:

$ ./configure --prefix=/opt --without-x --without-perl --with-jpeg \
   --disable-shared --disable-dependency-tracking \
   --enable-delegate-build --enable-osx-universal-binary
$ make -j 16
This gave me statically linked binaries of the ImageMagick tools I was able to run on my Mac. I also tried to build dynamically linked binaries but failed. Because I don't need the dynamically linked version, I gave up after a while.

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