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# Copyright 1999-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

VERIFY_SIG_OPENPGP_KEY_PATH="${BROOT}"/usr/share/openpgp-keys/gzip.asc
inherit flag-o-matic verify-sig

DESCRIPTION="Standard GNU compressor"
HOMEPAGE="https://www.gnu.org/software/gzip/"
SRC_URI="mirror://gnu/gzip/${P}.tar.xz
	https://alpha.gnu.org/gnu/gzip/${P}.tar.xz"
SRC_URI+=" verify-sig? (
		mirror://gnu/gzip/${P}.tar.xz.sig
		https://alpha.gnu.org/gnu/gzip/${P}.tar.xz.sig
	)"

LICENSE="GPL-3+"
SLOT="0"
KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
IUSE="pic static"

BDEPEND="verify-sig? ( sec-keys/openpgp-keys-gzip )"
RDEPEND="!app-arch/pigz[symlink(-)]"

PATCHES=(
	"${FILESDIR}/${PN}-1.3.8-install-symlinks.patch"
)

src_configure() {
	use static && append-flags -static

	# Avoid text relocation in gzip
	use pic && export DEFS="NO_ASM"

	# bug #663928
	econf --disable-gcc-warnings
}

src_install() {
	default

	docinto txt
	dodoc algorithm.doc gzip.doc

	# Avoid conflict with app-arch/ncompress
	rm "${ED}"/usr/bin/uncompress || die

	# keep most things in /usr, just the fun stuff in /
	dodir /bin
	mv "${ED}"/usr/bin/{gunzip,gzip,zcat} "${ED}"/bin/ || die
	sed -e "s:${EPREFIX}/usr:${EPREFIX}:" -i "${ED}"/bin/gunzip || die
}

pkg_postinst() {
	if [[ -n ${REPLACING_VERSIONS} ]]; then
		local ver
		for ver in ${REPLACING_VERSIONS}; do
			if ver_test "${ver}" -lt "1.12-r2"; then
				ewarn "This package no longer installs 'uncompress'."
				ewarn "Please use 'gzip -d' to decompress .Z files."
			fi
		done
	fi
}