libtool and gcj still not friends?

[Sven Herzberg]

[Versions]
# libtool --version
ltmain.sh (GNU libtool) 1.5.2 (1.1220.2.60 2004/01/25 12:25:08) Debian:
192 $
# automake-1.7 --version
automake (GNU automake) 1.7.9
# autoconf --version
autoconf (GNU Autoconf) 2.59

Hi,

  I'd like to create a library with Java to be compiled with gcj. For
cross-platform support etc. I want to do this with automake, autoconf
and libtool. Unfortunately this doesn't work on any of my machines.

  Attached is a tarball with a mini-project (autogen.sh, configure.in,
Makefile.am and Demo.java) that serves as a testcase for this.

ERROR 1
=======

When I wanted to build with Makefile.am looking like that
--
lib_LTLIBRARIES=libjavademo.la
libjavademo_la_SOURCES=Demo.java
--

Libtool complains like this:
--
# make
if /bin/sh ./libtool --mode=compile gcj  -g -O2 -MT Demo.lo -MD -MP -MF
".deps/Demo.Tpo" \
  -c -o Demo.lo `test -f 'Demo.java' || echo './'`Demo.java; \
then mv -f ".deps/Demo.Tpo" ".deps/Demo.Plo"; \
else rm -f ".deps/Demo.Tpo"; exit 1; \
fi
libtool: compile: unable to infer tagged configuration
libtool: compile: specify a tag with `--tag'
make: *** [Demo.lo] Fehler 1
#
--


ERROR 2
=======

So I defined my own LTGCJCOMPILE variable (take a look at the
Makefile.am in the tarball) to set '--tag=GCJ' too. Now this error
appears:

--
# make
if /bin/sh ./libtool --tag=GCJ --mode=compile gcj  -g -O2 -MT Demo.lo
-MD -MP -MF ".deps/Demo.Tpo" \
  -c -o Demo.lo `test -f 'Demo.java' || echo './'`Demo.java; \
then mv -f ".deps/Demo.Tpo" ".deps/Demo.Plo"; \
else rm -f ".deps/Demo.Tpo"; exit 1; \
fi
libtool: ignoring unknown tag GCJ
 gcj -g -O2 -MT Demo.lo -MD -MP -MF .deps/Demo.Tpo -c Demo.java  -fPIC
-DPIC -o .libs/Demo.o
gcj: can't specify `-D' without `--main'
 
make: *** [Demo.lo] Fehler 1
#
--

Now this error REALLY confuses me (if you're looking for a reason, take
a look at the attached configure-stdout file -- it says 'appending
configuration tag "GCJ" to libtool').

Please help.

Regards,
  Sven
-- 
Sven Herzberg <address@hidden> · Jabber: address@hidden
GNOME Deutschland                  · http://www.gnome-de.org/

libtooltest.tar.bz2
Description: application/bzip

configure-stdout
Description: Text document