# Copyright 1999-2003 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-kernel/gentoo-sources/gentoo-sources-2.4.20-r1.ebuild,v 1.7 2003/03/11 20:42:57 lostlogic Exp $

IUSE="build crypt xfs"

# Kernel ebuilds using the kernel.eclass can remove any patch that you
# do not want to apply by simply setting the KERNEL_EXCLUDE shell
# variable to the string you want to exclude (for instance
# KERNEL_EXCLUDE="evms" would not patch any patches whose names match
# *evms*).  Kernels are only tested in the default configuration, but
# this may be useful if you know that a particular patch is causing a
# conflict with a patch you personally want to apply, or some other
# similar situation.

ETYPE="sources"

inherit kernel || die
# OKV=original kernel version, KV=patched kernel version.  They can be the same.
OKV="2.4.20"

# Documentation on the patches contained in this kernel will be installed
# to /usr/share/doc/gentoo-sources-${PV}/patches.txt.gz with summary in 
# the package ChangeLog

DESCRIPTION="Full sources for the Gentoo Linux kernel"
SRC_URI="http://www.kernel.org/pub/linux/kernel/v2.4/linux-${OKV}.tar.bz2
	 http://gentoo.lostlogicx.com/patches-${KV}.tar.bz2"
KEYWORDS="x86 -ppc -sparc"
SLOT="${KV}"

src_unpack() {
	unpack ${A}
	mv linux-${OKV} linux-${KV} || die

	cd ${KV}
	# Kill patches we aren't suppposed to use, don't worry about 
	# failures, if they aren't there that is a good thing!

	# If the compiler isn't gcc3 drop the gcc3 patches
	if [[ "${COMPILER}" == "gcc3" ]];then
		einfo "You are using gcc3, check out the special"
		einfo "processor types just for you"
	else
		einfo "Your compiler is not gcc3, dropping patches..."
		for file in *gcc3*;do
			einfo "Dropping ${file}..."
			rm -f ${file}
		done
	fi		

	# This is the ratified crypt USE flag, enables IPSEC and patch-int
	if [ -z "`use crypt`" ]; then
		einfo "No Cryptographic support, dropping patches... (USE='-crypt')"
		for file in 8*;do
			einfo "Dropping ${file}..."
			rm -f ${file}
		done
	else
		einfo "Cryptographic support enabled... (USE='crypt')"
	fi

	# This is the non-ratified xfs USE flag, enables XFS which is not
	# patched by default because it can cause problems with JFS's
	# journals.
	if [ -z "`use xfs`" ]; then
		einfo "No XFS support, is this on purpose? (USE='-xfs')"
		for file in 79*;do
			einfo "Dropping ${file}..."
			rm -f ${file}
		done
	else
		ewarn "Enabling XFS patch, are you sure you want this? (USE='xfs')"
	fi

	rm -f *3c509-fix
	rm -f *tcp-window-tracking

	kernel_src_unpack
}

pkg_postinst() {

	kernel_pkg_postinst

	einfo
	einfo "You have just installed a specialized, "
	einfo "high performance patchset of the linux kernel."
	einfo "If there are problems with it, please report them"
	einfo "by assigning bugs on bugs.gentoo.org to"
	einfo "x86-kernel@gentoo.org"
	ewarn
	ewarn "If you use iptables, and get an invalid argument error, you"
	ewarn "simply need to rebuild iptables to solve the problem"
	ewarn
	[ `use xfs` ] && ewarn "XFS patches enabled, this may cause JFS problems" || \
		einfo "XFS not enabled, is that on purpose?  JFS users beware of XFS."
	ewarn

}