This is the lp_solve, A free linear programming solver that can process 
standard MPL format, LP format or be accessed directly from your code
via API calls from a library. This lp_solve version is released under
the LGPL license. See LGPL.txt.

WWW: http://tech.groups.yahoo.com/group/lp_solve/
     http://sourceforge.net/projects/lpsolve/