#!/bin/bash

blrtsgnu=/bgl/BlueLight/ppcfloor/blrts-gnu
bglsys=/bgl/BlueLight/ppcfloor/bglsys

installdir=/gpfs/scratch/s/smeds/bgoctave/octave-3.0.1b

export CC=${blrtsgnu}/bin/powerpc-bgl-blrts-gnu-gcc
export CFLAGS="-I${bglsys}/include/ -O3"

export PATH=${blrtsgnu}/bin:$PATH


export CPPFLAGS=-I${bglsys}/include
export CXX=${blrtsgnu}/bin/powerpc-bgl-blrts-gnu-g++
export CXXFLAGS="-I${bglsys}/include -O3"
export F77=${blrtsgnu}/bin/powerpc-bgl-blrts-gnu-g77
export FFLAGS="-I${bglsys}/include -fno-underscoring -fno-second-underscore -O3"

export LDFLAGS="-Wl,-static "

# For linking with IBM ESSL accelerated BLAS/LAPACK libraries
export LIBS="-L/opt/ibmmath/lib -lesslbg"
export LIBS="$LIBS  /opt/ibmcmp/xlsmp/bg/1.7/blrts_lib/libxlomp_ser.a"

# Supporting Fortran libraries needed for linking
export LIBS="$LIBS  /opt/ibmcmp/xlf/bg/11.1/blrts_lib/libxlf90.a"
export LIBS="$LIBS  /opt/ibmcmp/xlf/bg/11.1/blrts_lib/libxlfmath.a"
export LIBS="$LIBS  /opt/ibmcmp/xlf/bg/11.1/blrts_lib/libxl.a"

# MPICH libraries
export LIBS="$LIBS  -L${bglsys}/lib/ -lmpich.rts -lmsglayer.rts  -lrts.rts -ldevices.rts"

# For linking with IBM MASS accelerated math routines. (Need to come before -lm)
export LIBS="$LIBS -Wl,--allow-multiple-definition /opt/ibmcmp/xlmass/bg/4.4/bglib/libmass.a -lm"

# Supporting libraries needed by some network related routines exercised by Octave
export LIBS="$LIBS -L${blrtsgnu}/powerpc-bgl-blrts-gnu/lib -Wl,--start-group -lc -lnss_dns -lnss_files -lresolv -Wl,--end-group"

# These tests fail in configure since we are cross-compiling. We
# state the what they should return explicitly using a cache file
cachefile=`pwd`/CONFIG.CACHE
cat > $cachefile << __EOF__
ac_cv_sizeof_int=4
ac_cv_sizeof_long=4
ac_cv_sizeof_long_long=8
ac_cv_sizeof_short=2
ac_cv_func_glob=${ac_cv_func_glob=yes}
ac_cv_header_glob_h=${ac_cv_header_glob_h=yes}
ac_cv_func_fnmatch=${ac_cv_func_fnmatch=yes}
ac_cv_header_fnmatch_h=${ac_cv_header_fnmatch_h=yes}
ac_cv_header_sgtty_h=${ac_cv_header_sgtty_h=no}
__EOF__

# Here comes the magic. Note disable-shared and disable-dl since Blue Gene/L
# is a statically linked platform.
./configure --cache-file=$cachefile \
	--disable-readline --disable-shared --disable-dl --enable-static --target=ppc-bgl-gnu \
	--without-hdf5 --without-fftw   --without-readline --without-gnuplot --with-blas=esslbg \
	--prefix=$installdir