My good friend John Lawson is planning to port DAXCAD to the Raspberry Pi.. I have ported this now https://bitbucket.org/DaveRobertson/daxcad/branch/LinuxPort – I’ll merge it all back again when I get it fully working.. The current version of gfortran 4.9 looks good and on a Linux machine the whole thing builds in less than a minute. I seem to remember a full build on an Apollo DN400 would be at least an hour. Anyway still a testament to Fortran and C for being reasonably portable.