problem building gcc on ia64-hpux machine

[edu m]

I want to build gcc-4.3 on a ia64-hpu11.23.
I've dowload binutils and do this for configure:

../gcc/configure --prefix=`pwd` --enable-languages=c
--with-mpfr=/home/ulc/es/mas/pardeiro/src/mpfr-2.3.0/
--with-gmp=/home/ulc/es/mas/pardeiro/src/gmp-4.2.2/
--with-as=/home/ulc/es/mas/pardeiro/src/binutils-2.18/ia64-hp-hpux11.23/bin/as

When do make obtain this error:

config.status: creating mkheaders.almost
config.status: creating config.h
Make: line 51: syntax error.  Stop.

*** Error exit code 1

Stop.
*** Error exit code 1

Stop.
*** Error exit code 1

Stop.

why???