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# Copyright (c) 2017 sakaki <sakaki@deciban.com>
# License: GPL v3+
# NO WARRANTY
EAPI=6
inherit flag-o-matic toolchain-funcs git-r3
KEYWORDS="~arm ~arm64"
DESCRIPTION="GPIO interface libraries (and utility) for the Raspberry Pi"
HOMEPAGE="http://wiringpi.com/"
SRC_URI=""
LICENSE="LGPL-3+"
SLOT="0"
IUSE=""
RESTRICT="mirror"
EGIT_REPO_URI="git://git.drogon.net/wiringPi"
EGIT_BRANCH="master"
# fetch the branch matching the ebuild version
EGIT_COMMIT="${PV}"
DEPEND=""
RDEPEND="
${DEPEND}"
PATCHES=( "${FILESDIR}/${PV}-makefiles.patch" )
src_prepare() {
local DIR
# put header files in include subdirectory
# don't make library links directly (these break)
# update manpage location to non-deprecated value
# get rid of suid (security risk); install utility as sbin instead
# if on arm64, install to /usr/lib64, not /usr/lib
# purge upstream email addresses as Gentoo is an unsupported platform
for DIR in wiringPi devLib gpio; do
sed -e "s#/include#/include/${PN}#" \
-e 's:/man/man:/share/man/man:g' \
-e 's:/bin:/sbin:g' \
-e 's:4755:0755:g' \
-i "${DIR}"/Makefile
if use arm64; then
sed -e 's:$(PREFIX)/lib:$(PREFIX)/lib64:g' \
-e 's:/lib/:/lib64/:g' \
-i "${DIR}"/Makefile
fi
done
sed -e 's/projects@drogon.net/(email removed, Gentoo unsupported)/g' \
-i $(find . -type f -exec grep -l "projects@drogon.net" {} +)
# deal with problem that RPi3 in 64-bit mode does not have
# the 'Hardware' line in /proc/cpuinfo, which the wiringPi library
# checks, by making it look in /etc/wiringpi/cpuinfo instead
use arm64 && epatch "${FILESDIR}/${PV}-pseudo-cpuinfo.patch"
default
}
src_compile() {
# git archive contains object files
cd wiringPi
emake V=1 clean
append-cflags "-fPIC" "-I${S}/wiringPi"
# ensure the right compiler and flags get used
emake V=1 CC=$(tc-getCC) CFLAGS="${CFLAGS}" LDFLAGS="${LDFLAGS}" \
LDCONFIG=/bin/true
# set up symlink for library
ln -s libwiringPi.so.* libwiringPi.so
# now ditto for other directories
cd ../devLib
emake V=1 clean
append-cflags "-I${S}/devLib"
emake V=1 CC=$(tc-getCC) CFLAGS="${CFLAGS}" LDFLAGS="${LDFLAGS}" \
LDCONFIG=/bin/true
ln -s libwiringPiDev.so.* libwiringPiDev.so
cd ../gpio
emake V=1 clean
append-cflags "-I${S}/cpio"
append-ldflags "-L${S}/wiringPi" "-L${S}/devLib"
emake V=1 CC=$(tc-getCC) CFLAGS="${CFLAGS}" LDFLAGS="${LDFLAGS}" \
LDCONFIG=/bin/true
}
src_install() {
local LIBDIR="${D%/}/usr/lib"
if use arm64; then
LIBDIR+="64"
fi
cd wiringPi
emake DESTDIR="${D%/}" PREFIX="/usr" install
cp --no-dereference libwiringPi.so "${LIBDIR}/"
cd ../devLib
emake DESTDIR="${D%/}" PREFIX="/usr" install
cp --no-dereference libwiringPiDev.so "${LIBDIR}/"
cd ../gpio
mkdir -p "${D%/}/usr/sbin"
emake DESTDIR="${D%/}" PREFIX="/usr" install
cd ..
DOCS=( README.TXT People )
if use arm64; then
# following is a snippet of cpuinfo, for use on Pi3s (which
# don't contain all the expected fields when booted in 64-bit
# mode)
insinto "/etc/${PN}"
newins "${FILESDIR}/cpuinfo-1" "cpuinfo"
fi
einstalldocs
}
pkg_postinst() {
if [[ -z ${REPLACING_VERSIONS} ]] && use arm64; then
elog "The file /etc/${PN}/cpuinfo has been created."
elog "The library will look there, instead of /proc/cpuinfo"
elog "when determining system type; this is necessary because"
elog "some /proc/cpuinfo data is not output in 64-bit mode."
elog "It only contains the necessary stanzas."
elog "You can modify this file as required."
fi
}
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