flags.guess

#!/bin/sh

# Attempt to guess suitable flags for the Fortran compiler.

if test x"$UNAME_MS" = x; then
    UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
    UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
    UNAME_MS="${UNAME_MACHINE}:${UNAME_SYSTEM}"
fi

case $FC in
    ftn|*/ftn|crayftn|*/crayftn)
        #
        # Cray Fortran
        #
        if test x"$FCFLAGS_PLATFORM" = x; then
            FCFLAGS_PLATFORM=""
        fi
        if test x"$LDFLAGS_PLATFORM" = x; then
            LDFLAGS_PLATFORM=""
        fi
        ;;
    pgf95|*/pgf95|pgf90|*/pgf90)
        #
        # Portland PGI
        #
        if test x"$FCFLAGS_PLATFORM" = x; then
            FCFLAGS_PLATFORM=""
        fi
        if test x"$LDFLAGS_PLATFORM" = x; then
            LDFLAGS_PLATFORM=""
        fi
        ;;
    ifort|*/ifort)
        #
        # Intel ifort Fortran90 for Linux
        #
        if test x"$RUN_COMMANDS" = x; then
            RUN_COMMANDS="FORT_FMT_RECL=1024"
        fi
        if test x"$FCFLAGS_PLATFORM" = x; then
            FCFLAGS_PLATFORM=""
        fi
        if test x"$LDFLAGS_PLATFORM" = x; then
			if test x"$UNAME_SYSTEM" = xDarwin; then
            	LDFLAGS_PLATFORM="-Wl,-stack_size,0x10000000"
			else
				LDFLAGS_PLATFORM=""
            fi
        fi
        # for debugging change to      -check all -debug -g -O0 -fp-stack-check -traceback -ftrapuv
        #
        ;;
    gfortran|*/gfortran|f95|*/f95)
        #
        # GNU gfortran
        #
        if test x"$FCFLAGS_PLATFORM" = x; then
			if test x"$UNAME_SYSTEM" = xDarwin; then
	            FCFLAGS_PLATFORM="-m64"
			else
				FCFLAGS_PLATFORM=""
	        fi
        fi
        if test x"$LDFLAGS_PLATFORM" = x; then
			if test x"$UNAME_SYSTEM" = xDarwin; then
            	LDFLAGS_PLATFORM="-m64 -Wl,-stack_size,0x10000000"
			else
				LDFLAGS_PLATFORM=""
            fi
        fi
        ;;
    g95|*/g95)
        #
        # g95 (free f95 compiler from http://www.g95.org)
        #
        if test x"$FCFLAGS_PLATFORM" = x; then
            FCFLAGS_PLATFORM=""
        fi
        if test x"$LDFLAGS_PLATFORM" = x; then
            LDFLAGS_PLATFORM=""
        fi
        ;;
    f90|*/f90)
	    if test x"$FCFLAGS_PLATFORM" = x; then
	        FCFLAGS_PLATFORM=""
	    fi
	    if test x"$LDFLAGS_PLATFORM" = x; then
	        LDFLAGS_PLATFORM=""
	    fi
        ;;
    lf95|*/lf95)
        #
        # Lahey f90
        #
        if test x"$FCFLAGS_PLATFORM" = x; then
            FCFLAGS_PLATFORM=""
        fi
        if test x"$LDFLAGS_PLATFORM" = x; then
            LDFLAGS_PLATFORM=""
        fi
        ;;
    ######## IBM ######
    *xlf*|*/*xlf*)
        #
        # on some (but not all) IBM machines one might need to add -qsave otherwise the IBM compiler allocates the
        # arrays in the stack and the code crashes if the stack size is too
        # small (which is sometimes the case, but less often these days on large machines)
        #
        if test x"$RUN_COMMANDS" = x; then
            RUN_COMMANDS="XLFRTEOPTS=\"uwidth=64\""
        fi
        if test x"$FCFLAGS_PLATFORM" = x; then
            FCFLAGS_PLATFORM="-qtune=pwr6 -qarch=pwr6 -WF,-DXLF"
        fi
        if test x"$LDFLAGS_PLATFORM" = x; then
            LDFLAGS_PLATFORM="-qtune=pwr6 -qarch=pwr6 -WF,-DXLF"
        fi
        ;;
    pathf90|*/pathf90)
        #
        # pathscale
        #
        if test x"$FCFLAGS_PLATFORM" = x; then
            FCFLAGS_PLATFORM=""
        fi
        if test x"$LDFLAGS_PLATFORM" = x; then
            LDFLAGS_PLATFORM=""
        fi
        ;;

esac

echo FCFLAGS_PLATFORM=\"$FCFLAGS_PLATFORM\" | sed 's/\$/\\\$/g'
echo LDFLAGS_PLATFORM=\"$LDFLAGS_PLATFORM\" | sed 's/\$/\\\$/g'
echo RUN_COMMANDS=\"$RUN_COMMANDS\" | sed 's/\$/\\\$/g'

# end of file