From:	Mat Hostetter <iclone!mjhostet AT cs DOT unm DOT edu>
Date:	Fri, 16 Jul 93 06:07:48 -0600
To:	djgpp AT sun DOT soe DOT clarkson DOT edu
Subject:	How do I use emu387 only when necessary?

I'm trying to cook up a program that uses some floating point code  
that I can distribute to people who have machines with and without  
80387's.  I would like my program to use emu387 when no 80387 is  
present, otherwise just use the 80387.

It seems that setting the "emu" field in the go32 environment  
variable automatically disables the 80387 and uses the emulator  
instead.  Without it, I expect that the program will crash on a  
non-387 equipped machine.

How can I make go32 use emu387 only when necessary?

One suggestion: right now if you rename go32.exe "foo.exe", it tries  
to run a program "foo" under go32.  This is very handy.  Perhaps it  
could look for "foo.emu" or "foo.387" and use it as a 387 emulator if  
no 80387 is detected, and no environment variables override?  This  
would make the distribution of software to people unfamiliar with  
go32 much easier (unless I there is already an easy way I am  
overlooking).

Thanks!

-Mat
mjhostet AT mit DOT edu

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