Problem in building GNU classpath 0.98 with sun JDK1.6 compiler

I am getting below error trying to build GNU classpath 0.98 with sun JDK1.6
compiler on debian linux system-

Making all in scripts
make[1]: Entering directory `/jvm/classpath-0.98/scripts'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/jvm/classpath-0.98/scripts'
Making all in tools
make[1]: Entering directory `/jvm/classpath-0.98/tools'
/bin/mkdir -p classes asm
/bin/mkdir -p ../tools/generated/gnu/classpath/tools/gjdoc/expr
java -classpath  antlr.Tool -o
../tools/generated/gnu/classpath/tools/gjdoc/expr/ \
  ./gnu/classpath/tools/gjdoc/expr/java-expression.g
Unrecognized option: -o
Could not create the Java virtual machine.
make[1]: *** [tools.zip] Error 1
make[1]: Leaving directory `/jvm/classpath-0.98/tools'
make: *** [all-recursive] Error 1

command used to configure classpath is given below-
 ./configure --disable-gtk-peer --disable-plugin --disable-gconf-peer
--enable-tools

Please help to resolve above build error in classpath.
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