#!/bin/sh

# Check ncurses compatibility

OS=`uname`

# Under MACOS make sure that the macports-installed version is used.

case "$OS" in

	Darwin) BASEDIR="/opt/local";;

	*)      BASEDIR="/usr";;

esac

INCLUDEPATH="${BASEDIR}/include"

LIBPATH="${BASEDIR}/lib"

# What library to link

ldflags()

{

	for ext in so a dylib ; do

		for lib in ncursesw ncurses curses ; do

			if [ -f "${LIBPATH}/lib${lib}.${ext}" ]; then

				echo "-L${LIBPATH} -l${lib}"

				exit

			fi

		done

	done

	exit 1

}

# Where is ncurses.h?

ccflags()

{

	if [ -f "${INCLUDEPATH}/ncursesw/ncurses.h" ]; then

		echo "-I${INCLUDEPATH} \"-DCURSES_LOC=<ncursesw/ncurses.h>\""

	elif [ -f "${INCLUDEPATH}/ncurses/ncurses.h" ]; then

		echo "-I${INCLUDEPATH} \"-DCURSES_LOC=<ncurses/ncurses.h>\""

	elif [ -f "${INCLUDEPATH}/ncursesw/curses.h" ]; then

		echo "-I${INCLUDEPATH} \"-DCURSES_LOC=<ncursesw/curses.h>\""

	elif [ -f "${INCLUDEPATH}/ncurses/curses.h" ]; then

		echo "-I${INCLUDEPATH} \"-DCURSES_LOC=<ncurses/curses.h>\""

	elif [ -f "${INCLUDEPATH}/ncurses.h" ]; then

		echo "-I${INCLUDEPATH} \"-DCURSES_LOC=<ncurses.h>\""

	elif [ -f "${INCLUDEPATH}/curses.h" ]; then

		echo "-I${INCLUDEPATH} \"-DCURSES_LOC=<curses.h>\""

	else

		exit 1

	fi

}

# Temp file, try to clean up after us

tmp=.lxdialog.tmp

trap "rm -f $tmp" 0 1 2 3 15

# Check if we can link to ncurses

check() {

        IF=`echo $(ccflags) | sed -e 's/"//g'`

        $cc $IF $(ldflags) -xc - -o $tmp 2>/dev/null <<'EOF'

#include CURSES_LOC

main() {}

EOF

	if [ $? != 0 ]; then

	    echo " *** Unable to find the ncurses libraries or the"       1>&2

	    echo " *** required header files."                            1>&2

	    echo " *** 'make menuconfig' requires the ncurses libraries." 1>&2

	    echo " *** "                                                  1>&2

	    echo " *** Install ncurses (ncurses-devel) and try again."    1>&2

	    echo " *** "                                                  1>&2

	    exit 1

	fi

}

usage() {

	printf "Usage: $0 [-check compiler options|-ccflags|-ldflags compiler options]\n"

}

if [ $# -eq 0 ]; then

	usage

	exit 1

fi

cc=""

case "$1" in

	"-check")

		shift

		cc="$@"

		check

		;;

	"-ccflags")

		ccflags

		;;

	"-ldflags")

		shift

		cc="$@"

		ldflags

		;;

	"*")

		usage

		exit 1

		;;

esac