# Copyright 1999-2002 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: $

DESCRIPTION="Flight Gear is a free flight simulator project."
HOMEPAGE="http://www.flightgear.org/"
SRC_URI="ftp://ftp.flightgear.org/pub/fgfs/Source/${P}.tar.gz ftp://ftp.flightgear.org/pub/fgfs/Shared/fgfs-base-${PV}.tar.gz"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="x86"

DEPEND="virtual/x11
		virtual/opengl
		>=media-libs/glut-3.7-r2
		>=media-libs/SimGear-0.0.18"
RDEPEND=${DEPEND}

S=${WORKDIR}/${P}

src_compile() {
	
	# Workaround for bug described in #5574:
	# New cpp0 warning of gcc >= 3.1 breaks the configure script. e.g. if a /usr/local/include
	# directory exists, it gets included in the extra include and lib directories search path 
	# and the warning 'cpp0: warning: changing search order for system directory "/usr/local/include"'
	# is issued which makes configure mistakenly assume it has not found plib/pu.h.
	# As a workaround we simply skip any EXTRA_DIRS checks.
	cp -a configure configure.original || "could not backup ./configure"
	sed -e "s/checking for extra include/skipping check for extra include/" \
	    -e "s/^exdirs=.*/exdirs=\"\"/" configure.original > configure || die "patching ./configure failed"
	
	local myconf=""
	
	# Use the X Window System?
	use X \
		&& myconf="$myconf --with-x" \
		|| myconf="$myconf --without-x"
	
	# Include Oliver's multi-pilot networking support (default: --without-network-olk)
	myconf="$myconf --with-network-olk"
	
	# Include new experimental environment subsystem (default: --without-new-environment)
	# myconf="$myconf --with-new-environment"
	
	# Disable new mouse input support (default: --without-old-mouse)
	# myconf="$myconf --with-old-mouse"

	# Include tile loading threads (default: --without-threads)
	# myconf="$myconf --with-threads"
	
	# Disable logging (flightgear default: --with-logging):
	myconf="$myconf --without-logging"
	
	# Compilation seems to hang with -O3, thus set the optimization level to -O2. Adjust this if you experience compilation problems.
	CXXFLAGS="${CXXFLAGS/-O?/-O2}"
	
	# Currently, the directory to extract the base package into is /usr/share. Set with --libdir.
	
	./configure \
		--host=${CHOST} \
		--prefix=/usr \
		--infodir=/usr/share/info \
		--mandir=/usr/share/man \
		--libdir=/usr/share \
		$myconf || die "./configure of FlightGear failed"
	
	make || die "make of FlightGear failed"
	
}

src_install () {
	
	make DESTDIR=${D} install || die "make install of FlightGear failed"
	
	dodoc AUTHORS COPYING ChangeLog Docs/* NEWS README Thanks || die "make install of FlightGear failed: dodoc failed"
	
	# Install the base package into /usr/share.
	cp -a ../FlightGear ${D}/usr/share || die "make install of FlightGear failed: Copying the base package failed"
	
}