Fortran libraries on the Blue Gene with mpi

[John R. Cary]

I am trying to link some Fortran code on the Blue Gene (P) using
the xl compilers.  My configure script uses

AC_PROG_LIBTOOL

and within that script I see

checking for Fortran libraries of mpixlf95_r...  
-L/opt/ibmcmp/xlsmp/bg/1.7/bglib -L/opt/ibmcmp/xlmass/bg/4.4/bglib 
-L/opt/ibmcmp/xlf/bg/11.1/bglib -R/opt/ibmcmp/lib/bg/bglib 
-L/bgsys/drivers/ppcfloor/gnu-linux/lib/gcc/powerpc-bgp-linux/4.1.2 
-L/bgsys/drivers/ppcfloor/gnu-linux/lib/gcc/powerpc-bgp-linux/4.1.2/../../../../powerpc-bgp-linux/lib 
-lxlf90_r -lxlopt -lxlomp_ser -lxl -lxlfmath -lpthread -lm

The option, -R/opt/ibmcmp/lib/bg/bglib, is causing trouble with libtool,
as at the final link, I see:

/bin/sh ../../libtool --tag=FC --tag=FC  --mode=link mpixlf95_r -qfree 
-qsuffix=f=f90 -I../../interfaces/src  -w -qalign=natural -qpic -O2    
-o testMmm testMmm.o ../../interfaces/test/libFMCFM.la 
/soft/apps/LAPACK/lapack_BGP.a /soft/apps/BLAS/blas_BGP.a 
-L/opt/ibmcmp/xlsmp/bg/1.7/bglib -L/opt/ibmcmp/xlmass/bg/4.4/bglib 
-L/opt/ibmcmp/xlf/bg/11.1/bglib -R/opt/ibmcmp/lib/bg/bglib 
-L/bgsys/drivers/ppcfloor/gnu-linux/lib/gcc/powerpc-bgp-linux/4.1.2 
-L/bgsys/drivers/ppcfloor/gnu-linux/lib/gcc/powerpc-bgp-linux/4.1.2/../../../../powerpc-bgp-linux/lib 
-lxlf90_r -lxlopt -lxlomp_ser -lxl -lxlfmath -lpthread -lm
libtool: link: mpixlf95_r -qfree -qsuffix=f=f90 -I../../interfaces/src 
-w -qalign=natural -qpic -O2 -o testMmm testMmm.o  
../../interfaces/test/.libs/libFMCFM.a /soft/apps/LAPACK/lapack_BGP.a 
/soft/apps/BLAS/blas_BGP.a -L/opt/ibmcmp/xlsmp/bg/1.7/bglib 
-L/opt/ibmcmp/xlmass/bg/4.4/bglib -L/opt/ibmcmp/xlf/bg/11.1/bglib 
-L/bgsys/drivers/ppcfloor/gnu-linux/lib/gcc/powerpc-bgp-linux/4.1.2 
-L/bgsys/drivers/ppcfloor/gnu-linux/lib/gcc/powerpc-bgp-linux/4.1.2/../../../../powerpc-bgp-linux/lib 
-lxlf90_r -lxlopt -lxlomp_ser -lxl -lxlfmath -lpthread -lm -rpath 
/opt/ibmcmp/lib/bg/bglib
/opt/ibmcmp/xlf/bg/11.1/bin/bgxlf95_r: 1501-216 (W) command option -ath 
is not recognized - passed to ld
ld: unrecognized -a option `th'


I.e., '-R' is converted to '-rpath', which  mpixlf95_r  does not like.  
It seems to separate
this into two args, one of which it keep, but then it dislikes -ath.

Am I doing something wrong?

Thanks...John Cary