In order to be able to build Replicant, you need to install some (free) software:

== Required Packages ==

 * bison
 * flex
 * git (git-core)
 * gperf
 * libncurses development headers (libncurses-dev)
 * make (build-essential)
 * mksquashfs (squashfs-tools)
 * openjdk
 * pngcrush - the build process will complain if it is not installed but builds will complete.
 * wget (or curl)
 * zip
 * zlib development headers (zlib1g-dev)
 * lzma

=== Additional requirements for amd64 ===

 * libc6-dev-i386
 * gcc-multilib
 * g++-multilib 
 * lib32z1-dev 
 * lib32readline5-dev
 * lib32ncurses5-dev
 * 32-bit compatibility libraries
 * If you see errors about incompatible library versions, you may need some symlinks. For example:
   * sudo ln -s /usr/lib32/libstdc++.so.6.0.14 /usr/lib32/libstdc++.so
   * sudo ln -s /usr/lib32/libz.so.1.2.3.4 /usr/lib32/libz.so

== Command line installation ==

=== Trisquel/Ubuntu/Debian ===

Required packages :
{{{
apt-get install  bison flex git-core gperf libncurses-dev build-essential squashfs-tools openjdk-6-jre openjdk-6-jdk pngcrush wget zip zlib1g-dev lzma
}}}

Additional requirements for amd64:
{{{
apt-get install libc6-dev-i386 gcc-multilib g++-multilib lib32z1-dev lib32readline5-dev lib32ncurses5-dev 
}}}