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Message-ID: <3B60771B.8000306@ece.gatech.edu>
Date: Thu, 26 Jul 2001 16:01:31 -0400
From: Charles Wilson <cwilson AT ece DOT gatech DOT edu>
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To: Charles Wilson <cwilson AT ece DOT gatech DOT edu>
CC: cygwin-developers AT cygwin DOT com
Subject: Re: export signgam
References: <3B60741B DOT 80508 AT ece DOT gatech DOT edu>
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Charles Wilson wrote:

> It seems that some packages (especially plotutils) assume that if gamma, 
> lgamma, j0, and erf all exist, then signgam does too. This breaks on 
> cygwin, since signgam exists but is not exported.  However the 
> assumption is not unreasonable, so here's a patch to export the symbol.
> 

scratch that.  It seemed so "obviously correct" -- but it ain't. 
building new-cygwin1.dll fails with "Cannot export signgam: symbol not 
defined." Oops.

signgam is a global variable; math.h #defines it as
#define signgam (*__signgam())

More research required....  :-(


--chuck