# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

inherit dot-a toolchain-funcs

DESCRIPTION="Hardware-based performance monitoring interface for Linux"
HOMEPAGE="https://perfmon2.sourceforge.net"

if [[ ${PV} == 9999 ]] ; then
	EGIT_REPO_URI="https://git.code.sf.net/p/perfmon2/libpfm4"
	inherit git-r3
elif [[ ${PV} == *_p* ]] ; then
	# git archive --format=tar --prefix=libpfm/ HEAD | xz > libpfm-4.13.0_p20260328.tar.xz
	SRC_URI="https://distfiles.gentoo.org/pub/dev/sam@gentoo.org/${CATEGORY}/${PN}/${P}.tar.xz"

	S="${WORKDIR}"/${PN}
else
	SRC_URI="https://downloads.sourceforge.net/perfmon2/${PN}4/${P}.tar.gz"
fi

LICENSE="GPL-2 MIT"
SLOT="0/4"
if [[ ${PV} != 9999 ]] ; then
	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~loong ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
fi
IUSE="static-libs"

PATCHES=(
	"${FILESDIR}"/libpfm-4.13.0-musl-WORDSIZE_undeclared.patch
)

src_prepare() {
	default

	sed -e "s:SLDFLAGS=:SLDFLAGS=\$(LDFLAGS) :g" \
		-i lib/Makefile || die
	sed -e "s:LIBDIR=\$(PREFIX)/lib:LIBDIR=\$(PREFIX)/$(get_libdir):g" \
		-i config.mk || die
}

src_compile() {
	use static-libs && lto-guarantee-fat
	# 'DBG=' unsets '-Werror' and other optional flags, bug #664294
	emake AR="$(tc-getAR)" CC="$(tc-getCC)" DBG=
}

src_test() {
	./tests/validate -A || die
}

src_install() {
	emake DESTDIR="${D}" LDCONFIG=true PREFIX="${EPREFIX}/usr" install
	dodoc README

	if ! use static-libs ; then
		find "${ED}" -name '*.a' -delete || die
	fi

	strip-lto-bytecode
}