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Re: problems compiling with libgcj
- To: delmar watkins <imneuromancer at yahoo dot com>
- Subject: Re: problems compiling with libgcj
- From: Warren Levy <warrenl at redhat dot com>
- Date: Wed, 17 Jan 2001 12:55:41 -0800 (PST)
- cc: java-discuss at sources dot redhat dot com
On Wed, 17 Jan 2001, delmar watkins wrote:
> I am new to this list, sorry if this is a too-newbie
> querstion. I am new to java (from the Perl side of
> things) but my company is now doing more 'embedded'
> devices, and Perl does not fit the bill. Currently we
> are using C on the device, and Java for the client,
> and I would love to see Java being used on the device
> too. However, I need to find a SMALL footprint java
> solution, and I thought that GCJ might be the
First off, thanks for looking at GCJ and no, your question isn't
"too-newbie" ;-). Hopefully, GCJ will be the solution you're looking for.
> And when I run it with 'java HttpMirror' it runs fine,
> but when I compile it with GCJ via:
> gcj --main=HttpMirror -o tester HttpMirror.class
> I can hit the web server ONCE and then the second time
> I get:
> java.io.IOException: Bad file descriptor
> Usage: java HttpMirror <port>
Hmm, I'm not able to reproduce this problem with a recent source tree
built on x86 Linux.
> Again, it runs fine if compiled normally, but poops
> out the SECOND time when compiled with GCJ (version
> 2.95.3, debian package on a debian 2.2.17 kernel box).
> I don't understand why it is doing that.
If GCJ is reporting that it is version 2.95.3, I suspect that you've just
run into an old bug that's been fixed since then (and that's why I can't
> Also, do I still have to have the libgcj on any box
> that I run a compiled program? I noticed that libgcj
> is 1.5+ megs... which is too big for the embedded
> device (and what kind of embedded device can handle
> 1.5 megs??). Someone, please educate me on this.
You can compile statically (via -static) to avoid the use of shared libs.
Hope this helps!