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First try to port gforth to OS/2
Some bugfixes

    1: You need DJ Delorie's port of GCC to DOS (DJGPP 2.0) to compile
    2: Gforth. DJGPP provides a DPMI client that allows to use the 32-bit
    3: features of the 80386, but on the other hand it requires at least a
    4: 386. A DPMI host is also part of the DJGPP 2.0 package, this is
    5: required if you don't have a DPMI host yourself (Windows/OS/2/Linux
    6: DOS-box, Quemm or others).
    7: 
    8: Gforth hasn't been tested with EMX, using EMX will require some changes in
    9: the console IO part. If you don't want to install the DJGPP package (quite
   10: large), look for a binary distribution of Gforth for DOS. You must have a
   11: version of GNU make, because DOS make programs are likely to have problems
   12: with the Makefile. If you want to change Gforth, you may need GNU m4, too.
   13: 
   14: If you don't bother and want to make it yourself, type
   15: 
   16: configure
   17: 
   18: configure has the following useful parameters:
   19:   --enable-force-reg      Use explicit register declarations if they appear in
   20:                           the machine.h file. This can cause a good speedup,
   21:                           but also incorrect code with some gcc versions on
   22:                           some processors (default disabled).
   23:   --enable-direct-threaded      Force direct threading. This may not work on
   24:                                 some machines and may cause slowdown on others.
   25:                                 (default processor-dependent)
   26:   --enable-indirect-threaded    Force indirect threading. This can cause a
   27:                                 slowdown on some machines.
   28:                                 (default processor-dependent)
   29: 
   30: After covering all inconveniences, type
   31: 
   32: make
   33: 
   34: Now you can check whether your shiny new Forth system works. Say
   35: 
   36: make test
   37: 
   38: You can run some benchmarks with
   39: 
   40: make bench
   41: 
   42: and compare them with the results in Benchres and in the manual.
   43: 
   44: Don't try to do "make install", it won't work, either. It is not possible to
   45: "make dist" or "make bindist", too, because of the limitations of DOS
   46: command lines.
   47: 
   48: Add the following entry to your Autoexec.bat:
   49: 
   50: SET GFORTHPATH=<your gforth source directory>;.
   51: 
   52: Use / instead of \ in your gforth source directory. Gforth now uses
   53: ';' as path separator, so you won't have problems DOS pathes that may
   54: contain ':', which is the default path separator in Unix.
   55: 
   56: For paper documentation, print gforth.ps (a Postscript file (300dpi
   57: fonts, i.e., it works, but does not produce best quality on better
   58: printers)), or say
   59: 
   60: make gforth.dvi
   61: 
   62: and print the resulting file gforth.dvi (you need TeX for that! But
   63: with TeX you can print it even if you don't have a Postscript printer
   64: nor Ghostscript).  You could be able to make a html version of the
   65: document, but AFAIK there is no texi2html for DOS available, as there
   66: is no perl available.