Gentoo Packages

# Copyright 1999-2025 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

inherit flag-o-matic toolchain-funcs verify-sig

DESCRIPTION="A libc optimized for small size"
HOMEPAGE="http://www.fefe.de/dietlibc/"
SRC_URI="
	http://www.fefe.de/dietlibc/${P}.tar.xz
	verify-sig? ( http://www.fefe.de/dietlibc/${P}.tar.xz.sig )
"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~alpha ~amd64 ~arm ~mips ~sparc ~x86"

DEPEND=">=sys-devel/binutils-2.31.1-r4"
BDEPEND="verify-sig? ( sec-keys/openpgp-keys-fefe )"

DIETHOME="/usr/diet"
VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/fefe.asc

PATCHES=(
	"${FILESDIR}"/${P}-cc.patch
)

src_prepare() {
	default

	# bug #855677
	filter-lto

	# Replace sparc64 related C[XX]FLAGS (see bug #45716)
	use sparc && replace-sparc64-flags

	# bug 676704
	use sparc && tc-is-gcc && append-flags -fno-tree-pre

	# gcc-hppa suffers support for SSP, compilation will fail
	use hppa && strip-unsupported-flags

	# Makefile does not append CFLAGS
	append-flags -W -Wall -Wchar-subscripts \
		-Wmissing-prototypes -Wmissing-declarations -Wno-switch \
		-Wno-unused -Wredundant-decls -fno-strict-aliasing

	# Disable ssp for we default to it on >=gcc-4.8.3
	append-flags $(test-flags -fno-stack-protector)

	# only use -nopie on archs that support it
	tc-enables-pie && append-flags -no-pie

	sed -i -e 's:strip::' Makefile || die
	append-flags -Wa,--noexecstack

	# https://bugs.gentoo.org/944229
	append-cflags -std=gnu17

	# https://bugs.gentoo.org/722970
	sed -i -e 's:$(CROSS)ar:$(AR):' Makefile || die
	sed -i -e 's:CC=gcc::' Makefile || die
}

src_compile() {
	emake prefix="${EPREFIX}"${DIETHOME} \
		AR="$(tc-getAR)" \
		CC="$(tc-getCC)" \
		CFLAGS="${CFLAGS}" \
		STRIP=":"
}

src_install() {
	emake -j1 prefix="${EPREFIX}"${DIETHOME} \
		DESTDIR="${D}" \
		install-bin \
		install-headers \
		install-profiling

	dobin "${ED}"${DIETHOME}/bin/*
	doman "${ED}"${DIETHOME}/man/*/*
	rm -r "${ED}"${DIETHOME}/{man,bin} || die

	dodoc AUTHOR BUGS CAVEAT CHANGES README THANKS TODO PORTING
}