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Article #52196

Re: Unclear GCC Warning: Implicit Declaration !?

#52196
From: Markus Lautenbacher
Date: Mon, 18 Jan 1993 14:35
29 lines
1994 bytes
mcastle@cs.umr.edu (Michael R Castle) writes:

>prototype there either).  If gcc is installed to use the default 
>include files and libraries, it's quite possible that the orginal stdio.h
>file didn't have a prototype for printf().  Should be fairly easy to 
>grep the file looking for it.  

Sorry, but I should have mentioned that. Of course I did a "make
install-fixincludes".  However, as far as I understand, this "make" then
uses the original Sun includes to build the gcc includes.  Since I
couldn't find a declaration for printf() in the Sun stuff it probably
can't show up in the corresponding gcc includes.

To make sure, I cross-checked for printf() in the original and gcc
stdio.h under ULTRIX and there was a declaration for printf() in both
of them !

Does this mean that gcc inherits the weaknesses of the underlying OS ?
I thought gcc is a fully selfcontained ANSI C compiler which then
should not suffer from such obstacles. Where did I miss the point ?

Regards,
        MARKUS

--
MARKUS E. LAUTENBACHER,         | phone: +49/89/3209-2387
Technical University Munich,    | fax:   +49/89/32092296
Physics Dept.-Theo. Physics T31,| Internet:
D-8046 Garching, FRG.           | lauten@feynman.t30.physik.tu-muenchen.de
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From: lauten@Physik.TU-Muenchen.DE (Markus Lautenbacher)
Subject: Re: Unclear GCC Warning: Implicit Declaration !?
Message-ID: <lauten.727367745@Physik.TU-Muenchen.DE>
Keywords: printf implicit declaration
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References: <lauten.727351645@Physik.TU-Muenchen.DE> <1993Jan18.114443.4048@umr.edu>
Date: Mon, 18 Jan 1993 14:35:45 GMT
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