gcj crashes on generating class file

[Martin v. Loewis]

I don't know where to report bugs on gcj; so this goes to egcs-bugs
and java-discuss...

When compiling

package runlib;
public class Foo extends Exception {

  public Foo(String msg){
    super(msg);
  }

  public Foo(){}
}

with

gcj -femit-class-file -foutput-class-dir=classes Foo.java

I get

Foo.java: In class `runlib.Foo':
Foo.java: In method `runlib.Foo(java.lang.String)':
Foo.java:7: internal error - tree code not implemented: save_expr
Foo.java:7: internal error - tree code not implemented: save_expr
Foo.java: In method `runlib.Foo()':
Foo.java:10: internal error - tree code not implemented: save_expr

gcj is egcs-2.93.21 19990512, libgcj is from CVS (1.56 of
libjava/ChangeLog).

Please let me know if you need further information.

Regards,
Martin