I downloaded the source tarball for version 1.5a
and compiled them on Fedora Core 5
Here are my environment, allegro, and gcc versions:
Linux minidex.cool.com 2.6.16-1.2111_FC5 #1 Thu May 4
21:16:58 EDT 2006 i686 i686 i386 GNU/Linux
Running make generates three compile time errors
requiring calls to "abs" to be changed to "fabs".
player.cc lines 1041, 1046, 1140
Some google searches suggested that this fix may
already be in place in the debian atanks package.