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Article #6386

Re: Question on GNU C -- Openwin compatibility

#6386
From: Lars P. Fischer
Date: Wed, 09 Jan 1991 00:26
47 lines
2093 bytes
>>>>> On 30 Dec 90 01:04:00 GMT, hista@jetson.uh.edu said:

> I am having some rather crazy problems with my recently installed GNU C
> compiler on the Sun4 platform. ...

> when it comes down to files with inbuilt headers calling the xview
> libraries, it messes up like mad.

The header files for XView version 2 are set up to provide K&R C, ANSI C,
or C++. Unfortunately, the ANSI C version has syntax errors (!).  The
problem is this: When using a variabel number of arguments for a function
in ANSI C, you use the ellipsis notation, ie

  int printf (char*, ...);

XView make use of this a lot. For some functions, XView does not want to
tell anything about the arguments, hence

  int shhhh (...);

BUT this is illegal. "...there must be at least one named argument;...",
(K&R, 2.ed., p 155). To do that, one must say

  int shhhh ( );

That's an "old-style" declaration, with no type checking at all.  Below is
a patch for XView that fix the problem. save this article and go to
..../openwin/include/xview and say

   patch -p1 < xview.patch

If it complains about a reverse patch, just say "y" (I always mess up the
diff command. Sorry).

Happy Hacking!

Lars Fischer,  fischer@iesd.auc.dk

[[Ed's Note: Placed in archives - and I'll even update the index :) -bdg]]

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!cunews!bnrgate!brtph3!brchh104!brchs1!bnr.ca!rice.edu!sun-spots-request
From: fischer@iesd.auc.dk (Lars P. Fischer)
Newsgroups: comp.sys.sun
Subject: Re: Question on GNU C -- Openwin compatibility
Keywords: Source
Message-ID: <1126@brchh104.bnr.ca>
Date: 9 Jan 91 00:26:34 GMT
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