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# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
inherit toolchain-funcs
DESCRIPTION="An MBR that can handle BIOS-based boot on GPT"
MY_P="${PN}_${PV}"
HOMEPAGE="https://web.archive.org/web/20080704173538/http://aybabtu.com/mbr-gpt/"
SRC_URI="https://dev.gentoo.org/~robbat2/distfiles/${MY_P}.tar.gz"
LICENSE="GPL-3"
SLOT="0"
# This should probably NEVER go to stable. It's crazy advanced dangerous magic.
# It's also pure ASM, so not suitable for elsewhere anyway.
# Please don't remove it, robbat2 has a box that depends on it for # booting!
KEYWORDS="~amd64 ~x86"
# It only depends on binutils/gcc/make, and doesn't link against libc even.
DEPEND=""
RDEPEND=""
# It's a mostly an MBR block and it does use the executable stack.
QA_WX_LOAD="usr/lib/${PN}/boot.elf"
QA_PRESTRIPPED="${QA_WX_LOAD}"
QA_FLAGS_IGNORED="${QA_WX_LOAD}"
# Don't strip it either; this binary reboots your host!
RESTRICT="binchecks strip"
src_prepare() {
default
# Messy upstream
emake clean
# Need to build it 32-bit for the MBR
# Btw, no CFLAGS are respected, it's ASM!
if use amd64 ; then
sed -i -e 's/-Wall/-Wall -m32/g' "${S}"/Makefile || die
fi
}
src_compile() {
emake CC="$(tc-getCC)"
}
src_install() {
# get_libdir is not correct here. We want this to go into a 32-bit library
# location.
insinto /usr/lib/${PN}
doins mbr
exeinto /usr/lib/${PN}
exeopts -m 700
doexe boot.elf
dodoc AUTHORS
}
pkg_postinst() {
einfo "See the instructions on the homepage, and make sure you know what"
einfo "you are doing before touching this. The mbr file does into your"
einfo "MBR, or alternatively you can do a creative reboot utilizing the"
einfo "boot.elf binary."
}
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