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# Copyright 1999-2004 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-apps/i2c/i2c-2.8.3.ebuild,v 1.1 2004/03/27 15:13:32 plasmaroo Exp $
DESCRIPTION="I2C Bus support for 2.4.x kernels"
HOMEPAGE="http://www2.lm-sensors.nu/~lm78/"
SRC_URI="http://www2.lm-sensors.nu/~lm78/archive/${P}.tar.gz"
LICENSE="GPL-2"
SLOT="${KV}"
KEYWORDS="~x86"
DEPEND=""
pkg_setup() {
echo
einfo "*****************************************************************"
einfo
einfo "This ebuild assumes your *current* kernel is >=2.4.9 && < 2.5+ "
einfo
einfo "For 2.5+ series kernels, use the support already in the kernel"
einfo "under 'Character devices' -> 'I2C support'."
einfo
einfo "To cross-compile, 'export LINUX=\"/lib/modules/<version>/build\"'"
einfo "or symlink /usr/src/linux to another kernel."
einfo
einfo "*****************************************************************"
echo
eerror "*****************************************************************"
eerror
eerror "WARNING: This i2c support is not recommended for things such as "
eerror "WARNING: BTTV"
eerror
eerror "*****************************************************************"
eerror
eerror "http://www2.lm-sensors.nu/~lm78/cvs/browse.cgi/lm_sensors2/README"
eerror
eerror "35 ADDITIONALLY, i2c-2.8.1 is not API compatible to earlier i2c"
eerror "36 releases due to struct changes; therefore you must NOT ENABLE"
eerror "37 any other i2c drivers (e.g. bttv) in the kernel."
eerror "38 Do NOT use lm-sensors 2.8.0 or i2c-2.8.0 if you require bttv."
eerror
eerror "Please try out http://www.ensicaen.ismra.fr/~delvare/devel/i2c/"
eerror "for a kernel patch which will fix this problem. Please note that"
eerror "nor the lm_sensors team nor the package maintainers will be able"
eerror "to support you if you encounter problems with I2C when using"
eerror "other modules with requirements on I2C..."
eerror
eerror "*****************************************************************"
echo
}
src_compile () {
echo
if [ "$LINUX" != "" ]; then
echo -n ' '; einfo "Cross-compiling using:- $LINUX"
echo -n ' '; einfo "Using headers from:- `echo $LINUX/include/linux | sed 's/\/\//\//'`"
LINUX=`echo $LINUX | sed 's/build\//build/'`
else
echo -n ' '; einfo "You are running:- `uname -r`"
check_KV || die "Cannot find kernel in /usr/src/linux"
echo -n ' '; einfo "Using kernel in /usr/src/linux:- ${KV}"
echo ${KV} | grep 2.4. > /dev/null
if [ $? == 1 ]; then
echo -n ' '; eerror "Kernel version in /usr/src/linux is not 2.4.x"
echo -n ' '; eerror "Please specify a 2.4.x kernel!"
die "Incompatible Kernel"
else
LINUX='/usr/src/linux'
fi
if [ "${KV}" != "`uname -r`" ]; then
echo -n ' '; ewarn "WARNING:- kernels do not match!"
fi
fi
cd kernel;
epatch ${FILESDIR}/i2c-2.8.0-alphaCompile.patch > /dev/null;
cd ..;
echo; echo -n ' '; einfo "You may safely ignore any errors from compilation"
echo -n ' '; einfo "that contain 'No such file' references."
echo; echo '>>> Compiling...'
emake CC=${CC} LINUX=$LINUX clean all
if [ $? != 0 ]; then
eerror "I2C requires the source of a compatible kernel"
eerror "version installed in /usr/src/linux"
eerror "(or the environmental variable \$LINUX)"
eerror "and kernel I2C *disabled* or *enabled as a module*"
die "Error: compilation failed!"
fi
}
src_install() {
emake \
CC=${CC} \
LINUX=$LINUX \
LINUX_INCLUDE_DIR=/usr/include/linux \
DESTDIR=${D} \
PREFIX=/usr \
MANDIR=/usr/share/man \
install || die
dodoc CHANGES INSTALL README
}
pkg_postinst() {
[ -x /usr/sbin/update-modules ] && /usr/sbin/update-modules
einfo
einfo "I2C modules installed ..."
einfo
ewarn "IMPORTANT ... if you are installing this package you need to"
ewarn "IMPORTANT ... *disable* kernel I2C support OR *modularize it*"
ewarn "IMPORTANT ... if your 2.4.x kernel is patched with such support"
einfo
echo
}
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