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Date:	Mon, 10 May 1999 16:51:46 +0100 (BST)
From:	"J.C. Ng" <j DOT c DOT ng AT ic DOT ac DOT uk>
To:	Mumit Khan <khan AT xraylith DOT wisc DOT edu>
cc:	cygwin AT sourceware DOT cygnus DOT com
Subject:	Re: No underscore option for g77 or f77
In-Reply-To:	<Pine.SUN.3.93.990510103630.14165B-100000@modi.xraylith.wisc.edu>
Message-ID:	<Pine.SGI.3.96.990510164906.25468C-100000@buccaneer.ae.ic.ac.uk>
MIME-Version:	1.0

The library was compiled using egcs 1.1.2 in Cygwin. I used nm to check
the symbols within the library and all of them was prepended an
underscore.
Thanks for your help.

On Mon, 10 May 1999, Mumit Khan wrote:

> On Mon, 10 May 1999, J.C. Ng wrote:
> 
> > Saw that part in the g77 documentation...ooops....
> > What about gcc/g++? In cygwin, gcc prepends an underscore to every
> > function/symbol when I tried to build a library. I'm linking that
> > particular library when building my executable and when the compilation
> > for the executable calls the functions in the library, it can't find any
> > references to the functions due to the underscoring. Is there a switch for
> > gcc/g++? Why is it that egcs in Linux does not behave like this?
> > Thanks!
> > 
> 
> Linux uses ELF, and Windows32 uses PE-COFF which are completely different.
> The issue of underscores is an ABI (Application Binary Interface) issue
> and varies from system to system.
> 
> Your other library seems to have been compiled with some other compiler,
> right? 
> 
> I'm afraid without more information I can't be of much help.
> 
> Also, please send messages to the mailing list instead (you can copy me if
> you'd like). There are more eyes and fingers to help there.
> 
> Regards,
> Mumit
> 


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