Path: utzoo!attcan!uunet!mcsun!hp4nl!phigate!philica!adrie
From: adrie@philica.ica.philips.nl (Adrie Koolen)
Newsgroups: comp.os.minix
Subject: Re: GNU mods for MINIX-ST 1.5.10 library
Keywords: GNU MINIX-ST 1.5
Message-ID: <668@philica.ica.philips.nl>
Date: 19 Sep 90 14:13:12 GMT
References: <1805@Terra.cc.brunel.ac.uk>
Reply-To: adrie@beitel.ica.philips.nl (Adrie Koolen)
Organization: Philips TDS, Innovation Centre Aachen
Lines: 26

In article <1805@Terra.cc.brunel.ac.uk> eesrajm@cc.brunel.ac.uk (Andrew J Michael) writes:
>There are also some kludges to get round gcc problems with varargs which I
>don't seem to be able to sort out properly.

In Minix for the SparcStation 1, I also used the GNU C compiler. Most
changes I made in the library were because of the varargs problem. All
exec(), printf() and scanf() functions suffer from this. You can't solve
it in a nice way, because ANSI wants a varargs function declaration to
end in ", ...". To allow this, the whole declaration must be of the ANSI
type, i.e. parameter specifications on the same line as they are declared.
So all varargs functions now look like:

#if _ANSI
void fprintf(FILE *file, _CONST char *fmt, ...)
#else
void fprintf(file, fmt __STDIO_VA__ )
FILE *file;
_CONST char *fmt;
#endif

Not a nice hack, but the only solution I could think of. The library
functions can still be compiled on a PC, ST, be it with an ANSI compiler
or with a non-ANSI compiler.

Adrie Koolen (adrie@ica.philips.nl)
Philips Innovation Centre Aachen