From:	"Tobias Skytte" <marksmanANTISPAM AT adr DOT dk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	How do I customize libc for custom OS?
Date:	Mon, 21 Aug 2000 11:38:45 +0200
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

Hello All!

I'm new to this group, so firstly: Greetings everybody!

I have just downloaded DJGPP, read the FAQ and some of the docs, I am new to
C but experienced in Pascal (is that a bad word in this group? :-) )
Basically I am writing a custom OS for i386+ in pmode, and I currently can't
decide wether to use DJGPP or FreePascal (FPK). Now, one of the deciding
factors is going to be: how easy is it to customise the compiler (libc in
DJGPP, RTL in FPK) to work with a currently non-existing os (mine).?
If someone could point me in the right direction for finding out exactly
what needs to be changed in libc I would be greatful.
Looking over the source for libc I was a bit taken back, for I see thousands
of files... yikes! and which ones to change?
Also: If someone could show me the compiler switches to compile a MZ EXE (my
kernel will be in this format) without having the stub program, that would
be great. Or how to make a straight binary (i.e. non-relicateable) which is
another option for my kernel to be in.
Are there any tutorials on this kind of stuff? (i.e. how to use djgpp for
making custom OS)
Thanks in advance!

regards,
Tobias Skytte

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