Date: Fri, 9 Jun 1995 17:43:38 +0300
From: eliz AT is DOT elta DOT co DOT il (Eli Zaretskii)
To: jscharrl AT dv DOT st DOT dlr DOT de, sandmann AT clio DOT rice DOT edu
Subject: Re: Emacs & DPMI
Cc: djgpp-v2, djgpp AT sun DOT soe DOT clarkson DOT edu

> > BTW is there a special #define to detect V2? I get several warnings
> > from a special MSDOS-headerfile in Emacs that the file-commands are
> > declared twice.

Yes, there is.  The macro __DJGPP__ has the major version of DJGPP (i.e.,
2) as its value.  __DJGPP__ wasn't defined at all in DJGPP v1.x.

In general, to learn about any predefined macros, you can do one of these:

	1) look in the lib/specs file
	2) run gcc -dM -E foo.c (where foo.c is any empty file)