Re: LD_LIBRARY_PATH not accessible through java under cygwin for JNI

[Randall R Schulz <rrschulz at cris dot com>]

Ronald,

At 04:10 2003-02-27, Ronald Landheer-Cieslak wrote:
> On Thu, 27 Feb 2003, gilles bourgeois wrote:
> > hi folks,
> >
> > I am currently using my JNI so/dll library under solaris, linux and cygwin.
> > with solaris and linux, no problem, I bind to it using load(..) since the
> > LD_LIBRARY_PATH is set.
> >
> > BUT, under cygwin/windows, it does not work and I shall tell the absolute
> > path when I load the library.
> >
> > I have already posted in java.machine, but Randall schulz told  me 
> to try in
> > this mailing list.
>
> OK, I think we need more info here: see http://cygwin.com/bugs.html and
> also tell us:
> * what Java VM are you using?
> * Why do you expect LD_LIBRARY_PATH to work on Windows?

Gilles, I must reiterate Ronald's suggestion. You've told us far too 
little to attempt a diagnosis.


> Note that Cygwin is not the one that loads the libraries for you - that's
> Windows' job. I would be (very) surprised if you were using a VM running
> under Cygwin , and that VM uses dlopen() and not LoadLibrary() (in which
> case LD_LIBRARY_PATH would work, of course).


And here's what I told him:

> > Gilles,
> >
> > I recommend that you address Cygwin issues and problems to the Cygwin
> > mailing list: see <http://cygwin.com/ml/> and
> > <http://cygwin.com/cygwin/lists.html> for details. The list you want is
> > "cygwin," <mailto:cygwin at cygwin dot com>.
> >
> >
> > That said, there's no reason you cannot set an environment variable in
> > Cygwin that will be seen in a Java program launched from Cygwin.
> >
> > However, I don't think that's the issue. Cygwin, in fact, is a red
> > herring here. The Windows JVM from Sun is a Windows application, even if
> > it's launched from Cygwin and even if you're using JNI libraries
> > compiled under Cygwin using "gcc."
> >
> > Again, there are some Java users on the Cygwin mailing list and some of
> > them have produced JNI libraries using gcc. I suggest you ask for help
> > there.
> >
> > Randall Schulz



> but hey - go ahead - surprise me!
>
> rlc


Randall Schulz 


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