java newbie: gcj can't find its own jars?

[Jonathan Brandmeyer <jbrandmeyer@earthlink.net>]

What extra configuration is needed for gcj-3.3 to work?  I have a fresh
installation of it, but it can't access its own jar and lib for the
standard packages.  They are on the CLASSPATH, as shown by the -v output
below.  I'm running Sid.

Thanks,
Jonathan

ex.:
-----
import java.lang.Math.*;

public class Test
{
  public static void main( String[] args)
  {
    System.out.println( "e^2: " + Math.exp( 2.0) );
  }
}

------
$ gcj --classpath=/usr/share/java/libgcj-3.3.jar -v -C Test.java
Reading specs from /usr/lib/gcc-lib/i386-linux/3.3/specs
Configured with: ../src/configure -v
--enable-languages=c,c++,java,f77,pascal,objc,ada,treelang --prefix=/usr
--mandir=/usr/share/man --infodir=/usr/share/info
--with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared
--with-system-zlib --enable-nls --without-included-gettext
--enable-__cxa_atexit --enable-clocale=gnu --enable-debug
--enable-java-gc=boehm --enable-java-awt=xlib --enable-objc-gc
i386-linux
Thread model: posix
gcc version 3.3 (Debian)
 /usr/lib/gcc-lib/i386-linux/3.3/jc1 Test.java -quiet -dumpbase
Test.java -auxbase-strip NONE -g1 -version -fsyntax-only
-femit-class-files -o /dev/null
GNU Java version 3.3 (Debian) (i386-linux)
        compiled by GNU C version 3.3 (Debian).
GGC heuristics: --param ggc-min-expand=55 --param ggc-min-heapsize=48342
Class path starts here:
    ./
    /usr/share/java/repository/
    /usr/share/java/libgcj-3.3.jar/ (system) (zip)
Test.java:1: error: Can't find default package `java.lang.Math'. Check
the CLASSPATH environment variable and the access to the archives
1 error