# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/x11-base/kdrive/kdrive-4.3.0-r5.ebuild,v 1.25 2008/10/05 16:25:57 remi Exp $

# If you don't want to build the Xvesa server, do this.
# VESA="no" emerge kdrive

# By default, this will build a server with no support for scalable
# fonts (but support for built-in ``fixed'' and ``cursor'' fonts, and
# normal support for bitmap fonts and font-server provided fonts).

IUSE="ipv6 xinerama fbdev speedo type1 cjk truetype font-server xv debug"

IUSE_VIDEO_CARDS="savage trident sis530 trio ts300 mach64 i810 igs"

inherit eutils flag-o-matic toolchain-funcs x11 linux-info

filter-flags "-funroll-loops"

ALLOWED_FLAGS="-fstack-protector -march -mcpu -O -O1 -Os -O2 -O3 -pipe -fomit-frame-pointer"

# Recently there has been a lot of stability problem in Gentoo-land.  Many
# things can be the cause to this, but I believe that it is due to gcc3
# still having issues with optimizations, or with it not filtering bad
# combinations (protecting the user maybe from themselves) yet.
#
# This can clearly be seen in large builds like glibc, where too aggressive
# CFLAGS cause the tests to fail miserbly.
#
# Quote from Nick Jones <carpaski@gentoo.org>, who in my opinion
# knows what he is talking about:
#
#   People really shouldn't force code-specific options on... It's a
#   bad idea. The -march options aren't just to look pretty. They enable
#   options that are sensible (and include sse,mmx,3dnow when apropriate).
#
# The next command strips CFLAGS and CXXFLAGS from nearly all flags.  If
# you do not like it, comment it, but do not bugreport if you run into
# problems.
#
# <azarah@gentoo.org> (13 Oct 2002)
strip-flags

# Are we using a snapshot ?
USE_SNAPSHOT="no"
PATCHVER="0.5"
MANDIR=${WORKDIR}/man
PATCH_DIR="${WORKDIR}/patch"
BASE_PV="${PV}"
MY_SV="${BASE_PV//\.}"
S="${WORKDIR}/xc"
SRC_PATH="ftp://ftp.xfree.org/pub/XFree86/${BASE_PV}/source"
HOMEPAGE="http://www.xfree.org"
SRC_URI="${SRC_PATH}/X${MY_SV}src-1.tgz
	${SRC_PATH}/X${MY_SV}src-2.tgz
	${SRC_PATH}/X${MY_SV}src-3.tgz
	mirror://gentoo/${P}-gentoo-${PATCHVER}.tar.bz2"
LICENSE="X11"
SLOT="0"
KEYWORDS="x86 amd64"
# Need portage for USE_EXPAND
DEPEND=">=sys-libs/ncurses-5.1
	>=sys-libs/zlib-1.1.3-r2
	>=sys-devel/flex-2.5.4a-r5
	>=dev-libs/expat-1.95.3
	>=sys-apps/sed-4
	dev-lang/perl
	media-libs/libpng
	>=sys-apps/portage-2.0.49-r13
	truetype? ( media-libs/freetype )"

DESCRIPTION="Xfree86: famous and free X server. Tiny version (KDrive)"

src_unpack() {
	unpack ${A}

	ebegin "Setting up config/cf/host.def"

		# See linux.cf for MMX, 3DNOW and SSE autodetection. (spyderous)

		cd "${S}"
		touch config/cf/host.def
		echo "#define XVendorString \"Gentoo Linux (KDrive ${PV}, revision ${PR})\"
#define KDriveXServer YES
#define TinyXServer YES
#define BuildLBX NO
#define BuildDBE YES
#define KdriveServerExtraDefines -DPIXPRIV
#define BuildRandR                 YES
#define BuildXInputLib             YES
#define BuildXTrueType             NO
#define ServerXdmcpDefines         -DXDMCP
#define BuildFonts                 NO" >>config/cf/host.def

		# We dont really want to spend twice as long compiling libraries
		# if they exist of the system allready, so we check and change
		# respectively here.
		if [ "`best_version x11-base/xorg-server`" ] ; then
			echo "#define BuildScreenSaverExt NO" >> config/cf/host.def
			echo "#define BuildScreenSaverLibrary NO" >> config/cf/host.def
			echo "#define SharedLibXss NO" >> config/cf/host.def
			echo "#define BuildXextLib NO" >> config/cf/host.def
			echo "#define BuildX11Lib NO" >> config/cf/host.def
			echo "#define ProjectRoot /usr/X11R6" >> config/cf/host.def
			# If the libs exist locally we do not need to build against
			# kdrives personal libraries, dont patch to do this.
			mv "${PATCH_DIR}"/0020* "${PATCH_DIR}"/excluded
		else
			echo "#define BuildScreenSaverExt YES" >> config/cf/host.def
			echo "#define BuildScreenSaverLibrary YES" >> config/cf/host.def
			echo "#define SharedLibXss YES" >> config/cf/host.def
			echo "#define BuildXextLib YES" >> config/cf/host.def
			echo "#define BuildX11Lib YES" >> config/cf/host.def
			echo "#define ProjectRoot ${S}/usr/X11R6" >> config/cf/host.def
		fi

		# As far as I know, you can't use Xwrapper for multiple X servers,
		# so we have to suid Xfbdev and Xvesa. mharris (redhat) also does
		# this.
		echo "#define InstallXserverSetUID YES" >> config/cf/host.def
		echo "#define BuildServersOnly YES" >> config/cf/host.def

		if [ "`gcc-version`" != "2.95" ] ; then
			# Should fix bug #4189.  gcc-3.x have problems with -march=pentium4
			# and -march=athlon-tbird
			replace-flags "-march=pentium4" "-march=pentium3"
			replace-flags "-march=athlon-tbird" "-march=athlon"

			# Without this, modules breaks with gcc3
			if [ "`gcc-version`" = "3.1" ] ; then
				append-flags "-fno-merge-constants"
				append-flags "-fno-merge-constants"
			fi
		fi

		echo "#define HasLinuxInput YES" >> config/cf/host.def

		echo "#define OptimizedCDebugFlags ${CFLAGS}" >> config/cf/host.def
		echo "#define OptimizedCplusplusDebugFlags ${CXXFLAGS}" >> config/cf/host.def

		if use debug ; then
			echo "#define XFree86Devel	YES" >> config/cf/host.def
			echo "#define DoLoadableServer	NO" >>config/cf/host.def
		else
			# use less ram .. got this from Spider's makeedit.eclass :)
			echo "#define GccWarningOptions -Wno-return-type -w" \
				>> config/cf/host.def
		fi

		# Xvesa isn't available on non-x86, non-gcc platforms.
		# See http://lists.debian.org/debian-x/2000/debian-x-200012/msg00029.html
		if vesa no || [ "${ARCH}" != "x86" ] ; then
			echo "#define XvesaServer NO" >> config/cf/host.def
		else
			echo "#define XvesaServer YES" >> config/cf/host.def
		fi

		use fbdev && \
			echo "#define XfbdevServer YES" >> config/cf/host.def || \
			echo "#define XfbdevServer NO" >> config/cf/host.def

		use ipv6 && \
			echo "#define HasIPv6 YES" >> config/cf/host.def

		use xinerama && \
			echo "#define BuildXinerama YES" >> config/cf/host.def

		local KDRIVE_XF_SERVERS="Savage Trident Sis530 Trio TS300 Igs i810 mach64"
		for i in ${KDRIVE_XF_SERVERS} ; do
			# I wish it worked like this. (spyderous)
			# if use video_cards_${i/[A-Z]/[a-z]} ; then
			if use `echo video_cards_${i} | tr [:upper:] [:lower:]` ; then
				echo "#define X${i}Server YES" >> config/cf/host.def
			fi
		done

		# Set up font support
		use speedo && echo "#define BuildSpeedo YES" >> config/cf/host.def
		use type1 && echo "#define BuildType1 YES" >> config/cf/host.def
		use cjk && echo "#define BuildCID YES" >> config/cf/host.def
		use truetype && echo "#define BuildXTrueType YES" >> config/cf/host.def \
			&& echo "#define BuildFreeType YES" >> config/cf/host.def
		use font-server && echo "#define FontServerAccess YES" >> config/cf/host.def

		# Video
		use xv && echo "#define BuildXvExt YES" >> config/cf/host.def

	eend 0

	# Bulk patching from all over
	cd "${WORKDIR}"
	EPATCH_SUFFIX="patch" epatch "${PATCH_DIR}"

	# We need to modify xmakefile after it has been created
	if [ ! "`best_version x11-base/xorg-server`" ] ; then
		ebegin "Creating fake X includes..."
			MY_PROJROOT="${S}/usr/X11R6/include/"
			MY_INCROOT="${S}/include"
			MY_LIBROOT="${S}/lib"
			MY_HERE="./"

			mkdir -p "${MY_PROJROOT}"
			cd "${MY_INCROOT}"
			for i in `ls ${MY_HERE}` ; do
				ln -sf "${MY_INCROOT}"/${i} "${MY_PROJROOT}"
			done

			cd "${MY_LIBROOT}"
			for i in `ls ${MY_HERE}` ; do
				ln -sf "${MY_LIBROOT}"/${i} "${MY_PROJROOT}"
			done

			cd "${MY_PROJROOT}" && rm -f Imakefile Makefile
			ln -sf "${MY_PROJROOT}"/extensions "${MY_PROJROOT}"/X11/extensions
			ln -sf "${S}"/lib "${S}"/usr/X11R6/lib

			cd "${WORKDIR}"
	    eend 0
	fi

	# Fixing bugs #68531 and #65758 -- this will disable toshiba dpms support
	sed '/#ifndef TOSHIBA_SMM/,/#endif/d' -i "${S}"/programs/Xserver/hw/kdrive/vesa/vesa.c

	# Workaround for vga.c not using the correct io.h include
	epatch "${FILESDIR}/${PN}-4.3.0-r5-vga.patch"
}

src_compile() {

	# If a user defines the MAKE_OPTS variable in /etc/make.conf instead of
	# MAKEOPTS, they'll redefine an internal X11 Makefile variable and the
	# X11 build will silently die. This is tricky to track down, so I'm
	# adding a preemptive fix for this issue by making sure that MAKE_OPTS is
	# unset. (drobbins, 08 Mar 2003)
	unset MAKE_OPTS

	einfo "Building KDrive..."
	emake World WORLDOPTS="" || die

	# This is dirty, we know, but there is no need to build man pages
	# for a whole pile of nothing. As such we are just going to copy
	# across the three needed man pages.
	einfo "Making and installing man pages..."
	mkdir -p "${MANDIR}"
	MY_MAN_BASE="${S}/programs/Xserver/hw/kdrive"

	if ! use fbdev ; then
		# We need to regenerate some makefiles for fbdev
		echo "#define XfbdevServer YES" >> config/cf/host.def
		cd "${S}"/programs && make Makefiles > /dev/null || die "Xfbdev Makefile regeneration error..."
	fi

	# We have a complete set of makefiles so lets just build what we need
	cd "${MY_MAN_BASE}"
	emake DESTDIR="${MANDIR}" install.man || die "Kdrive man page install..."
	emake DESTDIR="${MANDIR}" -C vesa install.man || die "Xvesa man page install..."
	emake DESTDIR="${MANDIR}" -C fbdev install.man || die "Xfbdev man page install..."

}

src_install() {

	exeinto /usr/X11R6/bin

	# Install Xvesa
	if [ -z "`vesa no`" ] ; then
		doexe programs/Xserver/Xvesa
		fperms 4711 /usr/X11R6/bin/Xvesa
	fi

	# Install Xfbdev
	if use fbdev ; then
		doexe programs/Xserver/Xfbdev
		fperms 4711 /usr/X11R6/bin/Xfbdev
	fi

	# Install the other servers
	local KDRIVE_SERVERS="savage trident sis530 trio ts300 igs i810 mach64"
	for i in ${KDRIVE_SERVERS} ; do
		if use video_cards_${i} ; then
			doexe programs/Xserver/X${i}
			fperms 4711 /usr/X11R6/bin/X${i}
		fi
	done

	# Install our startx script
	doexe "${PATCH_DIR}"/startxkd

	# Install man pages
	if [ "`best_version x11-base/xorg-server`" ] ; then
		doman "${MANDIR}"/usr/X11R6/man/man1/X{kdrive,vesa,fbdev}.1x
	else
		doman "${MANDIR}"/"${S}"/usr/X11R6/man/man1/X{kdrive,vesa,fbdev}.1x
	fi
}

pkg_postinst() {
	einfo "You may edit /usr/X11R6/bin/startxkd to your preferences."
	einfo "Xvesa is the default."
	einfo "Or you can use something like:"
	einfo "\"xinit -- /usr/X11R6/bin/Xvesa :0 -screen 1280x1024x16 -nolisten tcp\"."
	einfo "Your ~/.xinitrc will be used if you use xinit."
}

# For allowing Xvesa build to be disabled
vesa() {
	has "$1" "${VESA}"
}