Path: chuka.playstation.co.uk!news
From: gil@snsys.com (Gil Jaysmith)
Newsgroups: scea.yaroze.programming.codewarrior
Subject: Re: tanttank demo linking problem in  CW
Date: Tue, 09 Sep 1997 16:04:29 GMT
Organization: SN Systems
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Message-ID: <5v3rno$aa17@chuka.playstation.co.uk>
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Charles Henrich <henrich@msu.edu> wrote:
>Heh, thanks!  I didnt know that one :)  Wouldnt -Wall enable that option
>however?

Afraid not, squire. -Wall enables most of the individual -W options
but these are compiler warnings only, whereas -warn-common is a linker
option. If your makefile invokes ld directly then you need to add it
there (most likely on the end of the LDFLAGS definition), otherwise
you can pass it via gcc as "-Wl,warn-common".

According to the docs, there are some warnings which aren't enabled
even by -Wall and which have to be explicitly enabled, usually because
they're older usage which works fine and which would just tick you
off. If you put your program through lint, for example, you'd still
get complaints even if -Wall hadn't shown anything up.


Gil Jaysmith
SN Systems Software Ltd, makers of dev software for PSX, N64, etc... http://www.snsys.com
Disclaimer: the ads are my employers' but the opinions are mine.