#!/bin/sh
#
# Do not use optimization for the IRIX platforms, since that
# seems to fail at the build step.
# Our Makefile's always build with $(SDSS_CFLAGS), so we can use that
# variable to set optimization.
#
# $Id: evilmake 130264 2012-02-10 19:06:45Z weaver $
#
UNAME=`uname`
echo "OS type detected: ${UNAME}"
case ${UNAME} in
    "SunOS")
        #
        # Try to use Sun compiler if it exists.
        # which doesn't set useful exit value...
        #
        haveF77=`which f77 | grep -q -v 'no f77' && echo yes`
        if test ${haveF77}; then
            echo "Using Sun f77 compiler (better not be g77 named f77)"
            X_FFLAGS="-e"
            X_CFLAGS="-KPIC"
            LDF77=f77
        else
            echo "Using GNU g77 compiler"
            F77=g77
            X_CFLAGS="-fPIC"
            LDF77=g77
        fi
        X_LD_FLAGS=-G
        SO_EXT=so
        SDSS_CFLAGS=-O3
        ;;
    "HP-UX")
        LDF77=g77
        SO_EXT=sl
        X_CFLAGS="+z -Aa -D_HPUX_SOURCE"
        X_FFLAGS="-extend_source"
        X_LD_FLAGS=-b
        ;;
    "IRIX")
        LDF77=g77
        SO_EXT=so
        X_CFLAGS="-32 -KPIC"
        X_FFLAGS="-32 -extend_source"
        MAKE_FTNLIB="-lftn"
        X_LD_FLAGS="-shared -32"
        ;;
    "IRIX64")
        SO_EXT=so
        LDF77=g77
        X_CFLAGS="-64 -KPIC -mips4"
        CC=cc
        LD=ld
        LDF77=ld
        X_FFLAGS="-64 -extend_source -KPIC"
        MAKE_FTNLIB="-lftn"
        X_LD_FLAGS="-shared -64 -mips4"
        ;;
    "OSF1")
        LDF77=g77
        SO_EXT=so
        X_FFLAGS="-extend_source"
        X_LD_FLAGS="-S -shared"
        SDSS_CFLAGS=-O3
        ;;
    "Darwin")
        SO_EXT=dylib
        unamearch=`uname -m`
        if [ "${unamearch}" == 'i386' -o "${unamearch}" == 'x86_64' ]; then
            echo "Darwin/${unamearch}; requires a native (x86) IDL and gfortran"
            #
            # Note that "uname" on (some?) 64-bit capable Macs (10.5, at least), do not indicate
            # that they are 64-bit. So have idl tell us.
            #
            which idl > /dev/null 2>&1
            if [ $? = 0 ]; then
                idlarch=`idl -e 'PRINT, !VERSION.ARCH'`
            else
                idlarch=${unamearch}
            fi
            F77=gfortran
            LDF77=gcc
            LD=gcc
            #
            # This changes how undefined lookups happen.
            # With recent (3.1?) Xcodes, there is a
            # MAC_OS_X_VERSION_MIN_REQUIRED
            #
            export MACOSX_DEPLOYMENT_TARGET=10.5
            if [ "${idlarch}" = "x86_64" ]; then
                BITS_FLAGS="-arch x86_64"
                F_BITS_FLAGS="-m64"
            elif [ "${idlarch}" = "i386" ]; then
                BITS_FLAGS="-arch i386"
                F_BITS_FLAGS="-m32"
            else
                echo "Unsupported architecture for Darwin/Intel: ${idlarch}" >&2
                exit 1
            fi
            echo "   trying for a ${BITS_FLAGS} build... "
            #
            # These flags are copied from the values in the !MAKE_DLL structure.
            #
            SDSS_CFLAGS="${BITS_FLAGS} -O2 -fPIC -no-cpp-precomp -dynamic -fno-common -D_REENTRANT"
            X_CFLAGS=${SDSS_CFLAGS}
            #
            # gfortran only understands a subset of the cc options.
            #
            X_FFLAGS="${F_BITS_FLAGS} -ffixed-line-length-none -O2 -fPIC -dynamic -fno-common -D_REENTRANT"
            X_LD_FLAGS="${BITS_FLAGS} -bundle -flat_namespace -undefined suppress"
        else
            echo "Darwin/ppc"
            LDF77=ld
            F77=g77
            X_LD_FLAGS="-bundle /usr/lib/bundle1.o -L/usr/lib  -L/usr/lib/gcc/powerpc-apple-darwin8/4.0.0 -lc -lgcc -flat_namespace -undefined suppress"
            if [ `uname -r | cut -c 1` \< 8 ]; then
                X_LD_FLAGS="-bundle /usr/lib/bundle1.o -L/usr/lib -lc -lcc_dynamic -flat_namespace -undefined suppress"
            fi
            SDSS_CFLAGS=-O2
        fi
        ;;
    "Linux")
        SO_EXT=so
        HAVEG77=`which g77 2>&1 | grep -v 'no g77'`
        if test ${HAVEG77} ; then
            echo Using the g77 Fortran compiler
            F77=g77
            LDF77=g77
            MAKE_FTNLIB="-lg2c"
            # MAKE_FTNLIB="-lg2c  -L/usr/lib/gcc-lib/i386-redhat-linux/`gcc -dumpversion`"
            X_LD_FLAGS=-shared
            SDSS_CFLAGS="-O3 -DSDSS_LITTLE_ENDIAN -D_REENTRANT"
            X_CFLAGS="-fPIC"
            X_FFLAGS="-ffixed-line-length-none"
        else
            echo Using the gfortran Fortran compiler
            F77=gfortran
            LDF77=gfortran
            MAKE_FTNLIB="-lgfortran"
            X_LD_FLAGS="-shared -g"
            SDSS_CFLAGS="-g -O2 -DSDSS_LITTLE_ENDIAN -D_REENTRANT"
            X_CFLAGS="-fPIC ${SDSS_CFLAGS}"
            X_FFLAGS="-ffixed-line-length-none ${SDSS_CFLAGS}"
        fi
        ;;
    *)
        echo "This system is not supported" >&2
        exit 1
        ;;
esac
#
# export environment variables.
#
export SO_EXT X_CFLAGS X_FFLAGS X_LD_FLAGS SDSS_CFLAGS LD F77 MAKE_FTNLIB UNAME LDF77
#
# Run make
#
make "$@"