Problem installing gcc on hpux 11

[TimothyF@eurobase-systems.com]

I  have down loaded gcc-20011224 and followed the instructions on the
web site

having run the command

../gcc/configure --enable-threads=posix --prefix=/usr4/tools/gcc
--enable-shared --enable-languages=c++,java --with-as=/opt/gnu/bin/as
--with-ld=/opt/gnu/bin/ld

i recived the following

*** This configuration is not supported in the following subdirectories:
     target-libffi target-boehm-gc target-zlib target-libjava
target-libchill ta
rget-libf2c target-libobjc
    (Any other directories should still work fine.)
/usr/ccs/bin/ld: (Warning) At least one PA 2.0 object file (conftest.o)
was dete
cted. The linked output may not run on a PA 1.x system.
configure: warning: cannot execute: /opt/gnu/bin/ld: check --with-ld or
env. var
. DEFAULT_LINKER
configure: warning: cannot execute: /opt/gnu/bin/as: check --with-as or
env. var
. DEFAULT_ASSEMBLER
configure: warning:
*** Makeinfo is missing or too old.
*** Info documentation will not be built.
Links are now set up to build a native compiler for
hppa2.0w-hp-hpux11.00

so issuing the 
# make bootstrap command i got.

Make: line 1251: syntax error.  Stop.


Please help

Tim