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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-2.9.0.ebuild,v 1.5 2005/06/12 07:41:20 brix 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="~x86 ~amd64 ~ppc"
IUSE=""
DEPEND=""
src_unpack () {
unpack ${A}
epatch ${FILESDIR}/${P}.fix.patch
}
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
echo; einfo "You may safely ignore any errors from compilation"
einfo "that contain 'No such file' references."
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"
echo
fi
}
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