JP2KAK is the [http://www.kakadusoftware.com/ Kakadu] based [http://www.gdal.org/frmt_jp2kak.html GDAL Driver] for JPEG2000 image data.  There are several other JPEG2000 drivers as well (JPEG200 - JasPer, JP2MRSID - MrSID SDK, JP2ECW - ECW SDK).  The Kakadu library is proprietary, but can be licensed under reasonable terms for various uses. Unfortunately it comes with a slightly unusual build system which makes it hard to build against.

== Building Kakadu on Unix/Linux ==

The following guide walks through steps required to build '''Kakadu 6.0''' and '''GDAL''' with JP2KAK driver support on 32-bit Linux machine. Instructions presented here have been tested under Ubuntu Linux.

 * Prerequisites

You have obtained Kakadu source code and license in version '''6.0'''.

 * Unpack Kakadu 6.0 sources to preferred location

{{{
$ cp v6_0-00256n.zip /usr/local
$ cd /usr/local
$ unzip v6_0-00256n.zip
$ mv v6_0-00256N kakadu-6.0
}}}

'''Note:''' I assume you have sufficient privileges to operate in ''/usr/local'' directory or you have chosen different location.

The location ''/usr/local/kakadu-6.0'' will be used as building workspace and also as installation directory, because there is no ''make install'' step when building Kakadu.  

{{{
$ cd /usr/local/kakadu-6.0
}}}

 * Build subtree '''coresys'''

{{{
$ cd coresys/make
$ make -f Makefile-Linux-x86-32-gcc 
$ cd ../..
}}}

 * Build subtree '''apps'''

{{{
cd apps/make
$ make -f Makefile-Linux-x86-32-gcc 
$ cd ../..
}}}

 * Copy libraries to location where GDAL expects to find them

{{{
$ pwd
/usr/local/kakadu-6.0
$ mv lib/Linux-x86-32-gcc/* lib/
}}}

After this step, Kakadu libraries can be found here:

{{{
$ cd /usr/local/kakadu-6.0/lib
$ ls lib*
libkdu.a  libkdu_stacksafe32.a  libkdu_v60R.so
}}}


== Building GDAL with Kakadu support ==

 * Configuration

{{{
$ ./configure --with-kakadu=/usr/local/kakadu-6.0
}}} 

As you see, ''--with-kakadu'' option takes root (prefix) of Kakadu installation directory. As mentioned in the previous section, GDAL building scripts will look for Kakadu binaries in subdirectory ''/usr/local/kakadu-6.0/lib''.

Verify if ./configure successfully detected Kakadu files:

{{{
...
GDAL is now configured for i686-pc-linux-gnu

  Installation directory:    /home/mloskot/usr
  C compiler:                gcc -O2 
  C++ compiler:              g++ -O2 

  LIBTOOL support:           no

...
  KAKADU support:            yes
...
}}}


 * Build GDAL with JP2KAK driver

{{{
$ make
}}}

----

== Unix/Linux Builds by Frank ==

This is how I setup to use Kakadu 6.0 on my 64bit linux system with GDAL 1.4.x. Other makefiles exist for 32bit linux and a few other variations.  You may have to fiddle with the makefiles some if your environment is odd. 

(this is in progress - my build with v6 isn't actually working yet)

{{{
unzip v6_0-00256n.zip 
mv v6_0-00256N kakadu-6.0
cd kakadu-6.0/coresys/make
make -f Makefile-Linux-x86-64-gcc
cd ../../
cp lib/Linux-x86-64-gcc/* /usr/local/lib
cd apps/make
}}}

Edit to add -fPIC in compile options. 

{{{
make -f Makefile-Linux-x86-64-gcc
}}}

Then I configure GDAL like this:

{{{
./configure --with-kakadu=/home/warmerda/pkg/kakadu-6.0
}}}

and build.  The Kakadu libraries are used as static libraries, so there are no .so's to carry along.