This file describes the naming convention for the makefiles (mf*) and
include files for the preprocessor (fppincs/fpp*).

In some cases a common makefile handles many systems; this is called mfmost.
In fppincs, there is a fppmesa that is used by several of the systems with Mesa.

Otherwise, the naming convention for makefiles is mf12345 and preprocessor
files is fpp12345 where

1 - computer
  8 x86 or Pentium
  a alpha
  g sgi
  h hp
  i Itanium (in some cases, 8 may apply to Itanium)
  o sgi origin
  p Power Macintosh
  r rs6000
  s sun
  x x64 (x86-64, Intel 64 (Intel EM64T), AMD64)

2 - OS
  4 SunOS 4
  5 Windows 95
  a AIX
  d Tru64 and other descendents of Digital Unix
  h HPUX
  i Irix
  l Linux
  n Windows NT
  s Solaris
  v OpenVMS
  x MacOS X

3 - f90 compiler
  a NASoftware
  b Absoft
  c Pacific Sierra
  d Compaq (formerly Digital) Fortran
  e EPC
  f F
  g SGI
  h HP
  i Intel
  j Fujitsu (including Lahey/Fujitsu on Windows)
  l Lahey
  m Microsoft
  n NAGWare
  o Salford
  p PGI
  s SunSoft
  t PathScale
  u Gnu g95 and gfortran (add 2 for gfortran)
  v CVF (formerly DVF)
  x xlf90

4 - Opengl
  m Mesa
  n NVidia
  o Native OpenGL
  t MetroLink OpenGL for Linux
  s SGI OpenGL for Windows

5 - misc special designations
  a Linux a.out binaries
  1 SunSoft versions before 2.0
  2 SunSoft version 2.0 or later
  2 Gnu gfortran, as opposed to g95
  3 SGI -n32
  6 SGI -64
  6 Intel ifc versions before 7.0
  7 Intel ifc version 7.0 or later
  b Borland C compiler on Windows