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# Copyright 1999-2017 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI=2
inherit eutils toolchain-funcs flag-o-matic linux-info
DESCRIPTION="btrace can show detailed info about what is happening on a block device io queue"
HOMEPAGE="http://git.kernel.dk/cgit/blktrace/"
MY_PN="blktrace"
MY_P="${MY_PN}-${PV}"
SRC_URI="http://brick.kernel.dk/snaps/${MY_P}.tar.bz2"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="amd64 ppc x86"
IUSE="doc"
RDEPEND=""
# This is a Linux specific app!
DEPEND="${RDEPEND}
sys-kernel/linux-headers
doc? (
virtual/latex-base
|| ( >=app-text/texlive-core-2014 app-text/dvipdfm )
)
dev-libs/libaio"
S="${WORKDIR}/${MY_P}"
CONFIG_CHECK="~BLK_DEV_IO_TRACE"
WARNING_BLK_DEV_IO_TRACE="you need to enable BLK_DEV_IO_TRACE kernel option if you want to gather traces from this machine"
src_prepare() {
epatch "${FILESDIR}"/${PN}-1.0.1-ldflags-parallel-make.patch
}
src_compile() {
append-flags -DLVM_REMAP_WORKAROUND -W -I"${S}"
emake CC="$(tc-getCC)" CFLAGS="${CFLAGS}" || die "emake failed"
if use doc; then
export VARTEXFONTS="${T}/fonts"
emake docs || die "emake docs failed"
fi
}
src_install() {
emake install DESTDIR="${D}" prefix="/usr" mandir="/usr/share/man" || die "emake install failed"
dodoc README
use doc && dodoc doc/blktrace.pdf btt/doc/btt.pdf
}
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