Mailing-List: contact cygwin-developers-help AT sourceware DOT cygnus DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-developers-subscribe AT sources DOT redhat DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin-developers/>
List-Post: <mailto:cygwin-developers AT sources DOT redhat DOT com>
List-Help: <mailto:cygwin-developers-help AT sources DOT redhat DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender: cygwin-developers-owner AT sources DOT redhat DOT com
Delivered-To: mailing list cygwin-developers AT sources DOT redhat DOT com
Message-ID: <3B607E91.5080309@ece.gatech.edu>
Date: Thu, 26 Jul 2001 16:33:21 -0400
From: Charles Wilson <cwilson AT ece DOT gatech DOT edu>
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.2) Gecko/20010713
X-Accept-Language: en-us
MIME-Version: 1.0
To: cygwin-developers AT cygwin DOT com
Subject: Re: export signgam
References: <3B60741B DOT 80508 AT ece DOT gatech DOT edu> <3B60771B DOT 8000306 AT ece DOT gatech DOT edu>
Content-Type: multipart/mixed;
 boundary="------------080303060305090302070408"

This is a multi-part message in MIME format.
--------------080303060305090302070408
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Charles Wilson wrote:

> 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....  :-(


The following revised patch compiles successfully (and I'm running that 
kernel now).  Also, plotutils linked. :-)

--Chuck




--------------080303060305090302070408
Content-Type: text/plain;
 name="signgam.diff"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="signgam.diff"

--- cygwin.din~	Thu Jul 26 16:06:33 2001
+++ cygwin.din	Thu Jul 26 16:06:44 2001
@@ -6,6 +6,7 @@
 __errno
 __infinity
 __main
+__signgam
 __srget
 __swbuf
 _check_for_executable DATA

--------------080303060305090302070408--