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# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-apps/i2c/i2c-2.8.7.ebuild,v 1.14 2005/08/18 18:54:32 hansmi Exp $
inherit eutils toolchain-funcs
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/${P}.tar.gz"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="amd64 -ppc x86"
IUSE=""
DEPEND=""
pkg_setup() {
echo
eerror "WARNING: This i2c support is not recommended for things such as "
eerror "WARNING: BTTV"
echo
eerror "http://www2.lm-sensors.nu/~lm78/cvs/browse.cgi/lm_sensors2/README"
echo
eerror "40 ADDITIONALLY, i2c-2.8.1 is not API compatible to earlier i2c"
eerror "41 releases due to struct changes; therefore you must NOT ENABLE"
eerror "42 any other i2c drivers (e.g. bttv) in the kernel."
eerror "43 Do NOT use lm-sensors 2.8.0 or i2c-2.8.0 if you require bttv."
echo
eerror "Please try out http://khali.linux-fr.org/devel/i2c/ for a kernel"
eerror "patch which will fix this problem. Please note that nor the"
eerror "lm_sensors team nor the package maintainers will be able to"
eerror "support you if you encounter problems with I2C when using"
eerror "other modules with requirements on I2C..."
echo
}
src_compile () {
if [ "$LINUX" != "" ]; then
einfo "Cross-compiling using:- $LINUX"
einfo "Using headers from:- `echo $LINUX/include/linux | sed 's/\/\//\//'`"
LINUX=`echo $LINUX | sed 's/build\//build/'`
else
einfo "You are running:- `uname -r`"
check_KV || die "Cannot find kernel in /usr/src/linux"
einfo "Using kernel in /usr/src/linux:- ${KV}"
echo ${KV} | grep -q 2.4.
if [ $? == 1 ]; then
echo
einfo "For 2.5+ series kernels, use the support already in the kernel"
einfo "under 'Character devices' -> 'I2C support'."
echo
einfo "To cross-compile, 'export LINUX=\"/lib/modules/<version>/build\"'"
einfo "or symlink /usr/src/linux to another kernel."
echo
ewarn "Non-2.4 kernel detected; doing nothing..."
return
else
LINUX='/usr/src/linux'
fi
if [ "${KV}" != "`uname -r`" ]; then
ewarn "WARNING:- kernels do not match!"
fi
fi
cd kernel;
epatch ${FILESDIR}/i2c-2.8.0-alphaCompile.patch > /dev/null;
cd ..;
echo; einfo "You may safely ignore any errors from compilation"
einfo "that contain 'No such file' references."
echo; echo '>>> Compiling...'
emake CC=$(tc-getCC) 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() {
echo ${KV} | grep -q 2.4.
if [ "$?" -eq '0' -o "$LINUX" != '' ]; then
emake \
CC=$(tc-getCC) \
LINUX=$LINUX \
LINUX_INCLUDE_DIR=/usr/include/linux \
DESTDIR=${D} \
PREFIX=/usr \
MANDIR=/usr/share/man \
install || die
epause 5 # Show important warnings from the Makefile
dodoc CHANGES INSTALL README
fi
}
pkg_postinst() {
if echo ${KV} | grep -q 2.4.; then
[ -x /usr/sbin/update-modules ] && /usr/sbin/update-modules
einfo "I2C modules installed ..."
echo
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"
fi
}
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