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# Copyright 1999-2022 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=8
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inherit toolchain-funcs gnuconfig
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DESCRIPTION="High-performance and portable C++ number theory library"
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HOMEPAGE="https://www.shoup.net/ntl/ https://github.com/libntl/ntl"
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SRC_URI="https://www.shoup.net/ntl/${P}.tar.gz"
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LICENSE="LGPL-2.1+"
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SLOT="0/44"
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KEYWORDS="amd64 ~arm64 ppc ~riscv x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos"
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IUSE="bindist doc static-libs threads cpu_flags_x86_avx2"
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BDEPEND="dev-lang/perl"
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DEPEND="dev-libs/gmp:0=
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dev-libs/gf2x
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threads? ( >=dev-libs/gf2x-1.2 )"
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RDEPEND="${DEPEND}"
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S="${WORKDIR}/${P}/src"
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REQUIRED_USE="bindist? ( !cpu_flags_x86_avx2 )"
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DOCS=( "${WORKDIR}/${P}"/README )
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src_unpack() {
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default
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gnuconfig_update "${S}/libtool-origin/"
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}
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src_configure() {
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# The DoConfig script builds its own libtool, but doesn't
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# really try to set up the build environment (bug 718892).
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export CC="$(tc-getCC)"
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export CXX="$(tc-getCXX)"
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# Currently the build system can build a static library or both
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# static and shared libraries, but not only shared libraries. The
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# name NTL_GMP_LIP is *not* a typo.
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perl DoConfig \
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PREFIX="${EPREFIX}"/usr \
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LIBDIR="${EPREFIX}"/usr/$(get_libdir) \
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CXXFLAGS="${CXXFLAGS}" \
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CPPFLAGS="${CPPFLAGS}" \
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LDFLAGS="${LDFLAGS}" \
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CXX="$(tc-getCXX)" \
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AR="$(tc-getAR)" \
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RANLIB="$(tc-getRANLIB)" \
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SHARED=on \
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NTL_GMP_LIP=on \
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NTL_GF2X_LIB=on \
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NTL_THREADS=$(usex threads on off) \
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NTL_ENABLE_AVX_FFT=$(usex cpu_flags_x86_avx2 on off) \
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NATIVE=$(usex bindist off on) \
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|| die "DoConfig failed"
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if use doc; then
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DOCS+=( "${WORKDIR}/${P}"/doc/*.txt )
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HTML_DOCS=( "${WORKDIR}/${P}"/doc/*.html "${WORKDIR}/${P}"/doc/*.gif )
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fi
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}
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src_install() {
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default
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if ! use static-libs; then
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# bug #775884
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find "${ED}" -name '*.la' -delete || die
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# Use rm -f because the static archive may not be created when
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# using (for example) slibtool-shared.
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rm -f "${ED}/usr/$(get_libdir)"/libntl.a || die
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fi
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rm -r "${ED}"/usr/share/doc/NTL || die
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}
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