Problem with R using pgi compiler on x86_64

Hi,

we have installed R-2.8.1 using the current pgi compiler (8.0.2) for AMD64 on 
a SLES9 system.

When I try to install "Matrix" everything is fine until the last step.


make[1]: Leaving directory `/tmp/R.INSTALL.TW3399/Matrix/src/AMD' 

pgCC  -L/usr/lib64 -L/usr/X11R6/lib64 -pgf90libs  -o Matrix.so CHMfactor.o 
Csparse.o TMatrix_as.o Tsparse.o init.o Mutils.o chm_common.o cs.o cs_utils.o 
dense.o dgCMatrix.o dgTMatrix.o dgeMatrix.o dpoMatrix.o dppMatrix.o 
dsCMatrix.o dsyMatrix.o dspMatrix.o dtCMatrix.o dtTMatrix.o dtrMatrix.o 
dtpMatrix.o factorizations.o ldense.o lgCMatrix.o sparseQR.o SPQR.a CHOLMOD.a 
COLAMD.a AMD.a -L/usr/local/apps/R/R-2.8.1/lib64/R/lib -lRlapack -lRblas 
-lpgf90 -lpgf90_rpm1 -lpgf902 -lpgf90rtl -lpgftnrtl -lnspgc -lpgc -lrt 
-lpthread -lm -pgf90libs
/usr/lib64/crt1.o(.text+0x21): In function `_start': 

../sysdeps/x86_64/elf/start.S:109: undefined reference to `main' 

CHMfactor.o(.text+0x28): In function `CHMfactor_to_sparse': 

/tmp/R.INSTALL.TW3399/Matrix/src/CHMfactor.c:5: undefined reference to 
`R_CheckStack' 
CHMfactor.o(.text+0xa5):/tmp/R.INSTALL.TW3399/Matrix/src/CHMfactor.c:14: 
undefined reference to `Rf_error' 
CHMfactor.o(.text+0xe5):/tmp/R.INSTALL.TW3399/Matrix/src/CHMfactor.c:14: 
undefined reference to `R_NilValue'


Other modules worked and could be compiled without any problems.

Any idea ??


-- 
Bye,
   Peer