#!/bin/sh
  # SPDX-License-Identifier: GPL-2.0
  
  PKG="ncursesw"
  PKG2="ncurses"

  if [ -n "$(command -v pkg-config)" ]; then
  	if pkg-config --exists $PKG; then
  		echo cflags=\"$(pkg-config --cflags $PKG)\"
  		echo libs=\"$(pkg-config --libs $PKG)\"
  		exit 0
  	fi

  	if pkg-config --exists $PKG2; then
  		echo cflags=\"$(pkg-config --cflags $PKG2)\"
  		echo libs=\"$(pkg-config --libs $PKG2)\"
  		exit 0
  	fi

  fi

  # Check the default paths in case pkg-config is not installed.
  # (Even if it is installed, some distributions such as openSUSE cannot
  # find ncurses by pkg-config.)

  if [ -f /usr/include/ncursesw/ncurses.h ]; then
  	echo cflags=\"-D_GNU_SOURCE -I/usr/include/ncursesw\"
  	echo libs=\"-lncursesw\"
  	exit 0
  fi
  
  if [ -f /usr/include/ncurses/ncurses.h ]; then
  	echo cflags=\"-D_GNU_SOURCE -I/usr/include/ncurses\"
  	echo libs=\"-lncurses\"
  	exit 0
  fi
  
  if [ -f /usr/include/ncurses.h ]; then
  	echo cflags=\"-D_GNU_SOURCE\"
  	echo libs=\"-lncurses\"
  	exit 0
  fi
  
  echo >&2 "*"
  echo >&2 "* Unable to find the ncurses package."
  echo >&2 "* Install ncurses (ncurses-devel or libncurses-dev"
  echo >&2 "* depending on your distribution)."
  echo >&2 "*"

  echo >&2 "* You may also need to install pkg-config to find the"
  echo >&2 "* ncurses installed in a non-default location."
  echo >&2 "*"

  exit 1