Compiling using GCC
From OdaWiki
Building on *nix systems
1) Either download the latest source or get a dev build using (must have subversion installed!): svn co svn://odamex.net
2) Untar the archive somewhere or go into your odamex svn trunk dir and type: make
3) Binaries should appear in the bin dir after a successful compile: odamex, odasrv, odamaster
You can run "make server" or "make client" to only build the module you want.