Date:	Tue, 19 Dec 1995 13:14:52 +0100
To:	djgpp AT sun DOT soe DOT clarkson DOT edu
From:	Anton Helm <tony AT nt DOT tuwien DOT ac DOT at>
Subject:	Porting C-programs from DJGPP to UNIX

Porting C-programs from DJGPP to UNIX

(Yes I do, don't ask why...)

I would like to ask some questions about programs that should compile and
run on both platforms:

1) I use lots of FLEX/BISON scanners/parsers in my programs. How to tell
FLEX that it has to read
both UNIX and DOS style textfiles (on both platforms, e.g read DOS files on
a UNIX host) ?

2) I need to use umask() for the UNIX part. DJGPP has a umask() too, but it
is not documented.
What does umask() in DJGPP ?

3) Is there an easy (!) way to make kbhit() and getkey() available under UNIX ?

4) I already have a C-function which simulates spawnlp() on UNIX, but it
requires a lot
of #if conditionals. Any hints for a more portable spawnlp() ?


I'm using DJGPP 1.12m4 (GCC 2.6.3, BISON 1.22 FLEX 2.4.7).

Thanks to all for your replies. I try to post a summary of all answers.


Regards,

Tony

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Dipl.-Ing. Anton HELM             *  mailto:tony AT nt DOT tuwien DOT ac DOT at
Institut fuer Nachrichtentechnik  *  http://dictator.nt.tuwien.ac.at/~tony/
und Hochfrequenztechnik           *  http://www.tuwien.ac.at/nthft/
Guszhausstr. 25/389               *  phoneto:+43-1-58801-3520
A-1040 Wien, AUSTRIA              *  faxto:+43-1-5870583
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