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Date: Fri, 11 Jun 2004 17:22:57 -0400
To: geneSmith <gene DOT smith AT sea DOT siemens DOT com>, cygwin AT cygwin DOT com
From: Larry Hall <cygwin-lh AT cygwin DOT com>
Subject: Re: __getreent undefined on linux app build
In-Reply-To: <cad5ca$i3b$1@sea.gmane.org>
References: <cacvd3$vfu$1 AT sea DOT gmane DOT org> <cad5ca$i3b$1 AT sea DOT gmane DOT org>
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At 04:40 PM 6/11/2004, you wrote:
>geneSmith wrote, On 6/11/2004 2:58 PM:
>
>>I have tried to build a linux app (actually a app and a shared library) that was made for linux and works there under cygwin. Was hoping for minimal changes. First off, it seemed that I had to tell the linker the c library name with -lc. That got rid of a ton of undefined references. However, it still has undefined reference to __getreent is every file when linking the shared library.
>> From reading this list, I see that __getreent comes from the cygwin1.dll at run time. I had more than cywwin1.dll on my system from misc apps and renamed them and rebooted. Still get the link error.
>
>Looks like I can link to /lib/libcygwin.a to resolve it. Not sure if that is right way but program links and runs. (Not sure if it really works since need to talk to a box which I don't yet have via tcp/ip.) I tried to follow the procedure in the docs for linking against a dll but cygwin1.dll has no symbols.
>
>Or is libcygwin.a the "import library" for cygwin1.dll?  If so, I guess I am ok.


Yes, libcygwin.a is the import library.  But I don't understand why you 
need it (or -lc either for that matter).  Just compiling with Cygwin's
gcc/g++ gets you all this, unless you're using -mno-cygwin, in which 
case you're undoing it by explicitly linking Cygwin anyway.  Clearly,
you're doing something I don't understand but in the whole sheme of 
things, my understanding of your problem isn't a requirement for
anything. ;-)


--
Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
838 Washington Street                   (508) 893-9889 - FAX
Holliston, MA 01746                     


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