Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Message-ID: <003301c2821c$2bb25d80$080a0a0a@mon> From: "Alfred Lam" To: "Harig, Mark A." , References: Subject: Re: undefined reference continues Date: Fri, 1 Nov 2002 19:01:12 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Hi people, I have been able to get .so file which I'm trying to use now in a jni link in windows, but I'm facing some problems. This is the situation: I had some .cpp, .h and .lib libraries. My aim was to get a .so from these so that it can be used in a jni link in linux, so I used cygwin. Initially, these files were used to get a dll which talked to java programs in windows. Now the java program is ported to linux. However even though i use the same jvm, it cannot work since the java needs the dll. In linux the equivilent of a dll is .so in a jni link. So, after having obtained the .so by compiling the files in cygwin like this: g++ *.o scdll32.lib -o scard.so, i initially got an undefined reference to _WinMain@16. Having read from somewhere in the mialing list, I put an empty main() in one of the .cpp file and the .so is produced. Then I ported it to Linux and tried to run my java program, but then get the following: java.lang.unsatisfiedLinkError:/folder path/scard.so:invalied ELF header Can anyone help me here... Thanks, Alfred ----- Original Message ----- From: Harig, Mark A. To: Alfred Lam ; Sent: Thursday, October 31, 2002 8:57 AM Subject: RE: undefined reference continues > For future reference, please provide this > information as an attachment. It makes > the email archives more searchable because > there will be fewer false matches. > > > > > This is a more detailed info from cygwin. > > $ cygcheck -s -v -r |more > > > > Cygwin Win95/NT Configuration Diagnostics > > Current System Time: Thu Oct 31 10:23:52 2002 -- 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/