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From: "Michael Orlitzky" <mjo@gentoo.org>
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Reply-To: gentoo-dev@lists.gentoo.org, "Michael Orlitzky" <mjo@gentoo.org>
Message-ID: <1686741271.9ed8c182abf1232c57446017da57b24c4351a34c.mjo@gentoo>
Subject: [gentoo-commits] repo/gentoo:master commit in: dev-libs/ntl/
X-VCS-Repository: repo/gentoo
X-VCS-Files: dev-libs/ntl/ntl-11.5.1-r4.ebuild
X-VCS-Directories: dev-libs/ntl/
X-VCS-Committer: mjo
X-VCS-Committer-Name: Michael Orlitzky
X-VCS-Revision: 9ed8c182abf1232c57446017da57b24c4351a34c
X-VCS-Branch: master
Date: Wed, 14 Jun 2023 11:15:54 +0000 (UTC)
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commit: 9ed8c182abf1232c57446017da57b24c4351a34c
Author: Michael Orlitzky <mjo <AT> gentoo <DOT> org>
AuthorDate: Wed Jun 14 06:26:26 2023 +0000
Commit: Michael Orlitzky <mjo <AT> gentoo <DOT> org>
CommitDate: Wed Jun 14 11:14:31 2023 +0000
URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=9ed8c182
dev-libs/ntl: another AVX FFT build fix, this time on amd64.
Even on amd64, detection of the CPU features needed for AVX FFT can
fail. In particular, it can fail when -march=native is absent from
CXXFLAGS. Since the upstream documentation calls the AVX FFT
experimental, we disable it entirely. We also bring back NATIVE=on,
which should somewhat hide the CXXFLAGS issue until it can be addressed
upstream.
Closes: https://bugs.gentoo.org/815775
Signed-off-by: Michael Orlitzky <mjo <AT> gentoo.org>
dev-libs/ntl/ntl-11.5.1-r4.ebuild | 91 +++++++++++++++++++++++++++++++++++++++
1 file changed, 91 insertions(+)
diff --git a/dev-libs/ntl/ntl-11.5.1-r4.ebuild b/dev-libs/ntl/ntl-11.5.1-r4.ebuild
new file mode 100644
index 000000000000..a7373655ffa1
--- /dev/null
+++ b/dev-libs/ntl/ntl-11.5.1-r4.ebuild
@@ -0,0 +1,91 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit toolchain-funcs gnuconfig
+
+DESCRIPTION="High-performance and portable C++ number theory library"
+HOMEPAGE="https://www.shoup.net/ntl/ https://github.com/libntl/ntl"
+SRC_URI="https://www.shoup.net/ntl/${P}.tar.gz"
+
+LICENSE="LGPL-2.1+"
+SLOT="0/44"
+KEYWORDS="~amd64 ~arm64 ~loong ~ppc ~ppc64 ~riscv ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos"
+IUSE="doc threads"
+
+BDEPEND="dev-lang/perl"
+DEPEND="dev-libs/gmp:0=
+ dev-libs/gf2x
+ threads? ( >=dev-libs/gf2x-1.2 )"
+RDEPEND="${DEPEND}"
+
+S="${WORKDIR}/${P}/src"
+
+DOCS=( "${WORKDIR}/${P}"/README )
+
+src_unpack() {
+ default
+ gnuconfig_update "${S}/libtool-origin/"
+}
+
+src_configure() {
+ # The DoConfig script builds its own libtool, but doesn't
+ # really try to set up the build environment (bug 718892).
+ export CC="$(tc-getCC)"
+ export CXX="$(tc-getCXX)"
+
+ # Currently the build system can build a static library or both
+ # static and shared libraries, but not only shared libraries. The
+ # name NTL_GMP_LIP is *not* a typo.
+ #
+ # We have left NTL_ENABLE_AVX_FFT unconditionally disabled: NTL's
+ # AVX2 detection can fail even when the CPU supports it (bug
+ # 815775), and moreover, can fail due to CXXFLAGS. When that
+ # happens, and if we try to use the AVX FFT, the build fails.
+ # Finally, doc/config.txt says, "this is experimental at moment, and
+ # may lead to worse performance." So we are probably not missing out
+ # on much.
+ #
+ # The NATIVE=on option adds "-march=native" to CXXFLAGS and should
+ # not be enabled on Gentoo, but is currently necessary for NTL's CPU
+ # feature detection to work (bug 815775). See the upstream issue,
+ #
+ # https://github.com/libntl/ntl/issues/22
+ #
+ perl DoConfig \
+ PREFIX="${EPREFIX}"/usr \
+ LIBDIR="${EPREFIX}"/usr/$(get_libdir) \
+ CXXFLAGS="${CXXFLAGS}" \
+ CPPFLAGS="${CPPFLAGS}" \
+ LDFLAGS="${LDFLAGS}" \
+ CXX="$(tc-getCXX)" \
+ AR="$(tc-getAR)" \
+ RANLIB="$(tc-getRANLIB)" \
+ SHARED=on \
+ NTL_GMP_LIP=on \
+ NTL_GF2X_LIB=on \
+ NTL_THREADS=$(usex threads on off) \
+ NTL_ENABLE_AVX_FFT=off \
+ NATIVE=on \
+ || die "DoConfig failed"
+
+ if use doc; then
+ DOCS+=( "${WORKDIR}/${P}"/doc/*.txt )
+ HTML_DOCS=( "${WORKDIR}/${P}"/doc/*.html "${WORKDIR}/${P}"/doc/*.gif )
+ fi
+
+ # 780534 - Required for rlibtool so it can find the generated libtool
+ ln -sf libtool-build/libtool . || die
+}
+
+src_install() {
+ default
+ find "${ED}" -name '*.la' -delete || die
+
+ # Use rm -f because the static archive may not be created when
+ # using (for example) slibtool-shared.
+ rm -f "${ED}/usr/$(get_libdir)"/libntl.a || die
+
+ rm -r "${ED}"/usr/share/doc/NTL || die
+}