From:	Caroline Langensiepen <caroline AT timehigh DOT demon DOT co DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Changing from C to C++
Date:	Thu, 11 Dec 1997 10:03:07 +0000
Organization:	timehigh
Distribution:	world
Message-ID:	<+0mHrBAbp7j0Ewlq@timehigh.demon.co.uk>
References:	<2mgLUAAHZHj0Ewld AT timehigh DOT demon DOT co DOT uk>
	<348c947f DOT 5283597 AT news DOT uni-duisburg DOT de>
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

>
>To resolve these problems, surround your C headers with
>
>#ifdef __cplusplus
>extern "C" {
>#endif
>
>[your prototypes go here]
>
>#ifdef __cplusplus
>}
>#endif
>
>This makes that the compiler tell the linker that it has to search for a
>_SVAsyncProtISR, not a _SVAsyncProtISR__Fi or whatever.
>
>
Thanks to all who sent in the above (which of course worked) and kindly
didn't comment on what a dimboid I was being. When I used to link Ada to
C routines, I had to specify pragma 'c', so I should have realised I had
to tell gcc something similar. What lulled me into a false sense of
security was that  a couple of years ago, I wrote a lot of Visual C++
which used a c library (which I had modified & converted to a dll), and
never had to tell it about the C - and it seemed to work ok.
Thanks again
-- 
Caroline Langensiepen

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