source: MondoRescue/branches/stable/mindi-busybox/scripts/kconfig/lxdialog/check-lxdialog.sh@ 1770

#!/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