Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Message-ID: <3C3B5B3A.8070808@ece.gatech.edu> Date: Tue, 08 Jan 2002 15:48:58 -0500 From: Charles Wilson User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:0.9.4) Gecko/20011019 Netscape6/6.2 X-Accept-Language: en-us MIME-Version: 1.0 To: "David P. Caldwell" CC: cygwin@cygwin.com Subject: Re: Cygwin/Java-JNI tutorial available (plus gcc question) References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit David P. Caldwell wrote: > I was having trouble figuring out how to build Java/JNI programs with > Cygwin. There were a number of threads in the mailing list about it, and > some were helpful, but it still took a great deal of slogging. > > After I got it working, I put a tutorial on the web > (http://www.inonit.com/cygwin/) on how to do it. > > If you are an expert on these matters (and don't feel like reading the > tutorial), one question came up. I was unable to link my examples into DLLs > using gcc. (Or, more properly, I was able to link it into a DLL, but the > Java virtual machine would invariably complain that the function it was > looking for did not exist.) I ended up using LCC-Win32. There's some more > information about what occurred (and my cygcheck -s output) at > http://www.inonit.com/cygwin/jni/helloWorld/c.html. I don't have Java installed on this machine so I can't test this myself. But, try the following additional options to gcc: -Wl,--export-all-symbols If that doesn't work, then try again with the above option, but in addition: -Wl,--add-stdcall-alias Does any of that help? --Chuck -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/