#!/bin/sh

# Check ncurses compatibility

# What library to link

ldflags()

{

	$cc -print-file-name=libncursesw.so | grep -q /

	if [ $? -eq 0 ]; then

		echo '-lncursesw'

		exit

	fi

	$cc -print-file-name=libncurses.so | grep -q /

	if [ $? -eq 0 ]; then

		echo '-lncurses'

		exit

	fi

	$cc -print-file-name=libcurses.so | grep -q /

	if [ $? -eq 0 ]; then

		echo '-lcurses'

		exit

	fi

	exit 1

}

# Where is ncurses.h?

ccflags()

{

	if [ -f /usr/include/ncurses/ncurses.h ]; then

		echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"'

	elif [ -f /usr/include/ncurses/curses.h ]; then

		echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses/curses.h>"'

	elif [ -f /usr/include/ncurses.h ]; then

		echo '-DCURSES_LOC="<ncurses.h>"'

	else

		echo '-DCURSES_LOC="<curses.h>"'

	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() {

	echo "main() {}" | $cc -xc - -o $tmp 2> /dev/null

	if [ $? != 0 ]; then

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

		echo " *** make menuconfig require 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|-header|-library]\n"

}

if [ $# == 0 ]; then

	usage

	exit 1

fi

cc=""

case "$1" in

	"-check")

		shift

		cc="$@"

		check

		;;

	"-ccflags")

		ccflags

		;;

	"-ldflags")

		shift

		cc="$@"

		ldflags

		;;

	"*")

		usage

		exit 1

		;;

esac