Date: Wed, 19 Apr 1995 09:05:25 +0300
From: eliz AT is DOT elta DOT co DOT il. (Eli Zaretskii)
To: S DOT B DOT M DOT Verstege AT research DOT ptt DOT nl
Subject: Re: Using djgpp libs with borland c++ 4.x
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu

> I'm quite new to djgpp but i wanna know if it's possible to use the
> library files i make (with gcc/ar/ranlib) with borland c++ 4.x.
>
> The problem is that the orignal files came from unix but must be converted
> to borland c++ 4.x. They won't compile under borland, so somebody pointed me
> on the dos version of gcc (djgpp).. But the end program must run under
> windows 3.x (true windows app) and this isn't possible with djgpp (?)..

This is all covered in the DJGPP FAQ list, available as faq100.zip from the
same place you get DJGPP.  From what you've told, I'd say your best bet is
to develop with DJGPP and RSX/RSXDK extender/development kit; the FAQ tells
you more about them, including how to get RSX.  Question 2.5 there refers
specifically to RSX, while Chapter 17 explains why you (almost) can't mix
DOS .obj and .lib files with DJGPP .o and .a files.