sci-libs/fflas-ffpack: new package for finite-field linear algebra.

This is a straightforward import of the latest fflas-ffpack-2.4.3.ebuild
that François Bissey has been maintaining in the sage-on-gentoo overlay,
with only a few minor changes:

  * I added a "+" to the LICENSE to match the upstream LGPL-2.1+.

  * I switched the openmp check to use tc-check-openmp() conditionally
    on the MERGE_TYPE variable.

  * Added BDEPEND="virtual/pkgconfig" since we patch in a call to
    PKG_CHECK_MODULES.

I also removed a warning about build failures with USE=openmp. From what
I can tell, this stems from an older report (upstream Github issue 48)
using gcc-4.9.x that was never fully debugged. If the problems persist,
we can revisit that report, or just mask the flag.

Closes: https://bugs.gentoo.org/show_bug.cgi?id=715678
Package-Manager: Portage-2.3.89, Repoman-2.3.20
Signed-off-by: Michael Orlitzky <mjo@gentoo.org>

1 files changed, 62 insertions, 0 deletions

diff --git a/sci-libs/fflas-ffpack/fflas-ffpack-2.4.3.ebuild b/sci-libs/fflas-ffpack/fflas-ffpack-2.4.3.ebuild
new file mode 100644
index 000000000000..4115dc61acec
--- /dev/null
+++ b/sci-libs/fflas-ffpack/fflas-ffpack-2.4.3.ebuild
@@ -0,0 +1,62 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit autotools toolchain-funcs
+
+DESCRIPTION="Library for dense linear algebra over word-size finite fields"
+HOMEPAGE="https://linbox-team.github.io/fflas-ffpack/"
+SRC_URI="https://github.com/linbox-team/${PN}/releases/download/${PV}/${P}.tar.gz"
+
+LICENSE="LGPL-2.1+"
+SLOT="0"
+KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos"
+IUSE="static-libs openmp cpu_flags_x86_fma3 cpu_flags_x86_fma4 cpu_flags_x86_sse3 cpu_flags_x86_ssse3 cpu_flags_x86_sse4_1 cpu_flags_x86_sse4_2 cpu_flags_x86_avx cpu_flags_x86_avx2 cpu_flags_x86_avx512f cpu_flags_x86_avx512dq cpu_flags_x86_avx512vl"
+
+# Our autotools patch hacks in PKG_CHECK_MODULES calls.
+BDEPEND="virtual/pkgconfig"
+DEPEND="virtual/cblas
+	virtual/blas
+	virtual/lapack
+	dev-libs/gmp[cxx]
+	=sci-libs/givaro-4.1*"
+RDEPEND="${DEPEND}"
+
+PATCHES=( "${FILESDIR}/${PN}-2.3.2-blaslapack.patch" )
+
+pkg_pretend() {
+	[[ "${MERGE_TYPE}" != "binary" ]] && use openmp && tc-check-openmp
+}
+
+pkg_setup(){
+	tc-export PKG_CONFIG
+}
+
+src_prepare(){
+	default
+	eautoreconf
+}
+
+src_configure() {
+	econf \
+		--enable-precompilation \
+		$(use_enable openmp) \
+		$(use_enable cpu_flags_x86_fma3 fma) \
+		$(use_enable cpu_flags_x86_fma4 fma4) \
+		$(use_enable cpu_flags_x86_sse3 sse3) \
+		$(use_enable cpu_flags_x86_ssse3 ssse3) \
+		$(use_enable cpu_flags_x86_sse4_1 sse41) \
+		$(use_enable cpu_flags_x86_sse4_2 sse42) \
+		$(use_enable cpu_flags_x86_avx avx) \
+		$(use_enable cpu_flags_x86_avx2 avx2) \
+		$(use_enable cpu_flags_x86_avx512f avx512f) \
+		$(use_enable cpu_flags_x86_avx512dq avx512dq) \
+		$(use_enable cpu_flags_x86_avx512vl avx512vl) \
+		$(use_enable static-libs static)
+}
+
+src_install(){
+	default
+	find "${ED}" -name '*.la' -delete || die
+}