Error with using downloaded mpich and lammpi shared

=================================================================================                                                                                                       Running configure on MPICH; this may take several minutes                                                                                                                   =================================================================================                                                                                                                                                                                                                                                                                   *********************************************************************************
         UNABLE to CONFIGURE with GIVEN OPTIONS    (see configure.log for details):
---------------------------------------------------------------------------------------
Error running configure on MPICH: Could not execute 'cd /lsftmp/g0306332/petsc- 2.3.2-p8-new/externalpackages/mpich2-1.0.4p1;./configure --prefix=/lsftmp/g0306332/petsc-2.3.2-p8-new/externalpackages/mpich2-1.0.4p1/ia64 CC="/scratch1/g0306332/intel/cc/bin/icc -fPIC -O " CXX="g++ -Wall -Wwrite-strings -O   -fPIC " F90="/scratch1/g0306332/intel/fc/bin/ifort -fPIC -O " F77="/scratch1/g0306332/intel/fc/bin/ifort -fPIC -O " --enable-sharedlibs=gcc --without-mpe --with-pm=gforker':
Configuring MPICH2 version 1.0.4p1 with '--prefix=/lsftmp/g0306332/petsc-2.3.2-p8-new/externalpackages/mpich2-1.0.4p1/ia64' 'CC=/scratch1/g0306332/intel/cc/bin/icc -fPIC -O ' 'CXX=g++ -Wall -Wwrite-strings -O   -fPIC ' 'F90=/scratch1/g0306332/intel/fc/bin/ifort -fPIC -O ' 'F77=/scratch1/g0306332/intel/fc/bin/ifort -fPIC -O ' '--enable-sharedlibs=gcc' '--without-mpe' '--with-pm=gforker' 'CFLAGS=-mp -DANSI -I/app1/ia64/imsl/imsl/cnl600/itanium/include' 'F90FLAGS=-w -nologo -fpp -I/app1/ia64/imsl/CTT6.0/include/linx64_i9 -I/usr/local/mpich- 1.2.7p1/include' 'FFLAGS=-w -nologo -fpp -I/app1/ia64/imsl/CTT6.0/include/linx64_i9 -I/usr/local/mpich-1.2.7p1/include'
Executing mpich2prereq in /lsftmp/g0306332/petsc-2.3.2-p8-new/externalpackages/mpich2- 1.0.4p1/src/mpid/ch3 with
Executing mpich2prereq in /lsftmp/g0306332/petsc-2.3.2-p8-new/externalpackages/mpich2-1.0.4p1/src/mpid/ch3/channels/sock
sourcing /lsftmp/g0306332/petsc-2.3.2-p8-new/externalpackages/mpich2- 1.0.4p1/src/pm/gforker/mpich2prereq
checking for gcc... /scratch1/g0306332/intel/cc/bin/icc -fPIC -O
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether /scratch1/g0306332/intel/cc/bin/icc -fPIC -O accepts -g... yes
checking for /scratch1/g0306332/intel/cc/bin/icc -fPIC -O option to accept ANSI C... none needed
checking for type of weak symbol support... pragma weak
checking whether __attribute__ ((weak)) allowed... yes
checking for multiple weak symbol support... yes
configure: error: The values of the environment variables F77 (=/scratch1/g0306332/intel/fc/bin/ifort -fPIC -O ) and FC (=ifort) are not the same. Unset one or both and rerun configure
*********************************************************************************

it seems that the F77 and FC environment variables are different. I want to use (=/scratch1/g0306332/intel/fc/bin/ifort). How can I configure them?

If I use the lammpi which the sch provide, I got this error msg:

./config/configure.py --with-cc=icc --with-fc=ifort --download-f-blas-lapack=1 --download-hypre=1 --with-debugging=0 --with-mpi-include=/app1/ia64/lammpi/include/ --with-mpi-lib=/app1/ia64/lammpi/lib/libmpi.la --with-mpirun=/app1/ia64/lammpi/bin/mpirun --with-x=0 --with-shared

I also replace libmpi.la with libmpi.a but both cannot work.

Shared libraries cannot be built using MPI provided.
Either rebuild with --with-shared=0 or rebuild MPI with shared library support

What's the extension for shared libraries for ia64 platform? Is it *.so?

thanks alot