gentoo-overlay/dev-libs/crypto++/crypto++-7.0.0.ebuild

# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

EAPI=6

inherit flag-o-matic toolchain-funcs

DESCRIPTION="C++ class library of cryptographic schemes"
HOMEPAGE="https://cryptopp.com"
SRC_URI="https://www.cryptopp.com/cryptopp${PV//.}.zip"

LICENSE="Boost-1.0"
SLOT="0/7" # subslot is so version
KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ppc ~ppc64 ~sparc ~x86 ~x64-macos"
IUSE="+asm static-libs"
IUSE_CPU_FLAGS=" aes sse3 sse4_1 sse4_2"
IUSE+=" ${IUSE_CPU_FLAGS// / cpu_flags_x86_}"

DEPEND="app-arch/unzip"

S="${WORKDIR}"

pkg_setup() {
	export CXX="$(tc-getCXX)"
	export LIBDIR="${EPREFIX}/usr/$(get_libdir)"
	export PREFIX="${EPREFIX}/usr"
}

src_compile() {

	use asm || append-cxxflags -DCRYPTOPP_DISABLE_ASM
	use cpu_flags_x86_aes || append-cxxflags -DCRYPTOPP_DISABLE_AESNI
	use cpu_flags_x86_sse3 || append-cxxflags -DCRYPTOPP_DISABLE_SSSE3
	use cpu_flags_x86_sse4_1 || append-cxxflags -DCRYPTOPP_DISABLE_SSE4
	use cpu_flags_x86_sse4_2 || append-cxxflags -DCRYPTOPP_DISABLE_SSE4

	# ASM isn't Darwin/Mach-O ready, #479554, buildsys doesn't grok CPPFLAGS
	[[ ${CHOST} == *-darwin* ]] && append-cxxflags -DCRYPTOPP_DISABLE_ASM

	emake -f GNUmakefile all shared
}

src_install() {
	default

	use static-libs || rm -f "${ED}${EPREFIX}"/usr/$(get_libdir)/*.a
}