Problems with texinfo 4.1 on mainline/3.3

[Andreas Jaeger]

make install fails in the treelang directory with:
cd /cvs/gcc/gcc && makeinfo   -Idoc/include \
-o treelang/treelang.info treelang/treelang.texi
treelang/treelang.texi:84: Unknown command `copying'.
treelang/treelang.texi:104: Unmatched `@end'.
treelang/treelang.texi:132: Unknown command `insertcopying'.
makeinfo: Removing output file `treelang/treelang.info' due to errors; use --force to preserve.
make[1]: *** [/cvs/gcc/gcc/treelang/treelang.info] Error 2

I'm using texinfo 4.1 and configure warns about:
checking for modern makeinfo... no
configure: warning: 
*** Makeinfo is missing or too old.
*** Info documentation will not be built.

Am I forced to upgrade or is a make rule missing for this case?

Andreas
-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de
    http://www.suse.de/~aj