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Date: Tue, 01 May 2007 20:34:11 -0400
From: "Larry Hall (Cygwin)" <reply-to-list-only-lh@cygwin.com>
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Subject: Re: using Cygwin (-mno-cygwin) to JNI to a 3rd party DLL
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On 05/01/2007, Pete Flugstad wrote:
> On 5/1/07, Brian Dessent <brian AT dessent DOT net> wrote:
                            ^^^^^^^^^^^^^^^^^^^^^^^^
<http://cygwin.com/acronyms/#PCYMTNQREAIYR>.  Thanks,

> > You'll have to run this in a debugger to be sure, but I'd start looking
> > at calling convention clashes, i.e. stdcall vs cdecl.  This should be a
> > function of the header files and how they declare prototypes.
> 
> The thing that's odd is that without the 3rd party DLL present, everything
> works just fine.  My JNI functions are called and work (just debug printouts
> in that case).  Only when I actually call the 3rd party DLL (and obviously
> I'm linking against it), does it fail - and it fails before it even
> tries to call
> a function - during the loading phase.

I think the questions you need to ask yourself are:

 o What are you using in place of the 3rd party DLL in the cases where it
   works?
 o How was it compiled?
 o How well do those settings match what the 3rd party DLL used?

Depending what the answers are, it may well describe your successes and
failures.

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

_____________________________________________________________________

A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?

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