sci-chemistry/gromacs: Version bump

Package-Manager: Portage-3.0.8, Repoman-3.0.2
Signed-off-by: Alexey Shvetsov <alexxy@gentoo.org>

4 files changed, 723 insertions, 20 deletions

diff --git a/sci-chemistry/gromacs/Manifest b/sci-chemistry/gromacs/Manifest
index 9ff5ce63cab8..b5a7ae11084b 100644
--- a/sci-chemistry/gromacs/Manifest
+++ b/sci-chemistry/gromacs/Manifest
@@ -5,6 +5,7 @@ DIST gromacs-2020.1.tar.gz 29153989 BLAKE2B b1c0313da945c57c74040c2bcd50495b238b
 DIST gromacs-2020.2.tar.gz 29144614 BLAKE2B cd20b031dcec32d9a797d66f2679779077910c184702f12f12093d92e8417d42e07bfb17a8fe63e9d29a889d5f57461b5f86e11adfc26635f8d2b5a5df19473a SHA512 348c80fad93b34e6703906fec97c6c2294c0803c326d6145776b732e1c33cd58e0967ddb2ec4799e3583542c09e7a6a015e4d084d60cf97b81b3a92253cca76c
 DIST gromacs-2020.3.tar.gz 29143950 BLAKE2B ea88fcacc3958f1123c1fe4852f7160a04e4daff15dd2eb87c23197bff2e6379f396df0747b078dc86e7bb909ecbb4b6d98530a34234c989a636dbdb2327562d SHA512 8dbd13f8c6dd9ac337e0bea683aeff38010ee9b4ef438de230beb76e5a54884a5c1eda72f20294b7920758978e247900ac3db32b95c7452350fc1f5ef0a4bcc8
 DIST gromacs-2020.4.tar.gz 29149899 BLAKE2B a07c8efd96137d58c1edf4ac9b5aafeb16d9e65234b9459b71471827032654acacb58ed6ae87ec6e0e593a0acd799683cc4461b06cc883b089d740708619345e SHA512 0c56f058741af70660baf0177724ec940dd984c05ea141ede91ee51ce3744f76d00e31bdb5db907e46fa1639de5dca637b3ace26e89f908c2e74c69f0c21ed3a
+DIST gromacs-2021-beta1.tar.gz 29665063 BLAKE2B 2c03adc1b14ec7096f0b3899e8b11b4846b6a7cf5ad1e279d3deee721fc9e78b620854d2279dccbb6b5195e891f53cca3dce273f928f00b0223d6509d5355f27 SHA512 adc5062a2d1d204d2bc366d806ca78a181df3c7c8a2f4e4814d6a64dbd890f40d3e70f522e69fa3b4a71bfae8a8843bad49c6b811363e5426c6405ec1e5d7385
 DIST manual-2018.8.pdf 10025023 BLAKE2B afb0a6e6a72d78df743fcb57e7c1716848589e571dd35167b957a9b407ca27978ccfb6cb9e0df9c9439b888f352501a00ba32281ed1e0b4193bd606f1d77152e SHA512 b1972f7ce965bfc9377542993c5943ea4868a8ed23a969d4203264746d6bea3a7a65c6379196ece37fd6d68ec7ec80f827bde87d1049284af7082759a124f1d5
 DIST manual-2019.5.pdf 12702361 BLAKE2B cb80429a59019b190115bf2af689c0df23b0fec6e41a9ebc9eba20977d1b06eed79044c906c41228883767f673140e15d3a5ef947a0c1ec4fe84012089f4fa91 SHA512 baf27961b87e6120c49abc9dc58e25d12a15588b4ac787e1a086748d488692d4a1262229ac66e550d3cca3a6042545fb6ec472a2c98d6a8698b7a18b4397f605
 DIST manual-2019.6.pdf 12702376 BLAKE2B c350127bc06a9eb3dee73da39037c84daeb89500e23cb131bd19a150bf60602d4dde7611e0c6f0f344af4093e96a899303dac71b4df56fd0c44c3a48a56606b7 SHA512 dfdff67c2c1c9ce1f1c236b7686c5331b0fe86951da6c98eddd6a3e748815e0be0a9653ae4318469fcdd913c4e7c355d64a997cc80b9d9fbe6282ef6d98e61eb
@@ -15,3 +16,4 @@ DIST regressiontests-2020.1.tar.gz 48541809 BLAKE2B 0fec2f0fb7fad0ad48bb790d7df6
 DIST regressiontests-2020.2.tar.gz 48539492 BLAKE2B 08222ec18e70f551194fc0a060facda394c0d9999e162dace06029aa5f36e7237aeb2468a80d1198257a45fb076f8f633a7279a85976484900bf4154176aa070 SHA512 3066d92a59dafade78807612681d82a7b8a0bd9b74fa7e8784063a908418c55b4427482dc7feb261ff6981fabb2d64a800d3e90ed647ab45e201f4847347bac7
 DIST regressiontests-2020.3.tar.gz 48541439 BLAKE2B c8b3840b76b7974e5efd518d02da2be3c8e685a420462962cf4ffb7b234bd5ffec0fb83adc962e4ce4716098667e1431f7bc46911bf5400f369881c697c1d0cb SHA512 84848210b2c4c0387c3f347237d58a114bd28c2d248f359e40a4a5b3557fca7763c431d1e03f167dcf22296a48dd47413a644238d72edc1414e3f830dd732416
 DIST regressiontests-2020.4.tar.gz 48542144 BLAKE2B 1dcde67525d40ababa74d9e8ba2dd3fdef1de7d1018491e102edd71d3a622925f213b5a0812e5448882b4cb5fb578317e8e5029bdc4bd53008aa8441a3d9dea1 SHA512 7c71f36a1cef22562f14dcd233e90ad2fe370ae1a7d3b5268727259b374e12d4754253735ac8745d3738bdbc1cc2067780fda5e393be2ff264f632fe4e0c1978
+DIST regressiontests-2021-beta1.tar.gz 48526911 BLAKE2B 6bd20fd368f09af415881420828df1b0c1eb36848afb1e9bb47cd35dbb62847f4c529357df9a120fac314d6eca56eec10f460354bd7b8449b7f99e869c64142e SHA512 df7f95eb1a4946ec879432de1d8382f25e3dda71c80b569da59414b106ed85d7ecebc2c6e1f394ec6446dac75fe4efc8acc0aadc2bd402272c0f81edef8503ca
diff --git a/sci-chemistry/gromacs/gromacs-2021.9999.ebuild b/sci-chemistry/gromacs/gromacs-2021.9999.ebuild
new file mode 100644
index 000000000000..f3636cfc50f4
--- /dev/null
+++ b/sci-chemistry/gromacs/gromacs-2021.9999.ebuild
@@ -0,0 +1,346 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+CMAKE_MAKEFILE_GENERATOR="ninja"
+
+PYTHON_COMPAT=( python3_{6,7,8,9} )
+
+DISTUTILS_SINGLE_IMPL=1
+
+inherit bash-completion-r1 cmake cuda distutils-r1 eutils flag-o-matic multilib readme.gentoo-r1 toolchain-funcs xdg-utils
+
+if [[ $PV = *9999* ]]; then
+	EGIT_REPO_URI="git://git.gromacs.org/gromacs.git
+		https://gerrit.gromacs.org/gromacs.git
+		https://github.com/gromacs/gromacs.git
+		https://repo.or.cz/r/gromacs.git"
+	[[ $PV = 9999 ]] && EGIT_BRANCH="master" || EGIT_BRANCH="release-${PV:0:4}"
+	inherit git-r3
+else
+	SRC_URI="
+		http://ftp.gromacs.org/pub/${PN}/${PN}-${PV/_/-}.tar.gz
+		test? ( http://ftp.gromacs.org/pub/regressiontests/regressiontests-${PV/_/-}.tar.gz )"
+	KEYWORDS="~amd64 ~arm ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x86-macos"
+fi
+
+ACCE_IUSE="cpu_flags_x86_sse2 cpu_flags_x86_sse4_1 cpu_flags_x86_fma4 cpu_flags_x86_avx cpu_flags_x86_avx2 cpu_flags_x86_avx512f cpu_flags_arm_neon"
+
+DESCRIPTION="The ultimate molecular dynamics simulation package"
+HOMEPAGE="http://www.gromacs.org/"
+
+# see COPYING for details
+# https://repo.or.cz/w/gromacs.git/blob/HEAD:/COPYING
+#        base,    vmd plugins, fftpack from numpy,  blas/lapck from netlib,        memtestG80 library,  mpi_thread lib
+LICENSE="LGPL-2.1 UoI-NCSA !mkl? ( !fftw? ( BSD ) !blas? ( BSD ) !lapack? ( BSD ) ) cuda? ( LGPL-3 ) threads? ( BSD )"
+SLOT="0/${PV}"
+IUSE="X blas cuda +custom-cflags +doc -double-precision +fftw +gmxapi +gmxapi-legacy +hwloc lapack +lmfit mkl mpi +offensive opencl openmp +python +single-precision test +threads +tng ${ACCE_IUSE}"
+
+CDEPEND="
+	X? (
+		x11-libs/libX11
+		x11-libs/libSM
+		x11-libs/libICE
+		)
+	blas? ( virtual/blas )
+	cuda? ( >=dev-util/nvidia-cuda-toolkit-6.5.14 )
+	opencl? ( virtual/opencl )
+	fftw? ( sci-libs/fftw:3.0 )
+	hwloc? ( sys-apps/hwloc )
+	lapack? ( virtual/lapack )
+	lmfit? ( sci-libs/lmfit )
+	mkl? ( sci-libs/mkl )
+	mpi? ( virtual/mpi )
+	${PYTHON_DEPS}
+	!sci-chemistry/gmxapi
+	"
+BDEPEND="${CDEPEND}
+	virtual/pkgconfig
+	doc? (
+		app-doc/doxygen
+		$(python_gen_cond_dep '
+			dev-python/sphinx[${PYTHON_MULTI_USEDEP}]
+		')
+		media-gfx/mscgen
+		media-gfx/graphviz
+		dev-texlive/texlive-latex
+		dev-texlive/texlive-latexextra
+		media-gfx/imagemagick
+	)"
+RDEPEND="${CDEPEND}"
+
+REQUIRED_USE="
+	|| ( single-precision double-precision )
+	cuda? ( single-precision )
+	cuda? ( !opencl )
+	mkl? ( !blas !fftw !lapack )
+	${PYTHON_REQUIRED_USE}"
+
+DOCS=( AUTHORS README )
+
+RESTRICT="!test? ( test )"
+
+if [[ ${PV} != *9999 ]]; then
+	S="${WORKDIR}/${PN}-${PV/_/-}"
+fi
+
+PATCHES=( "${FILESDIR}/${PN}-2020_beta1-pytest.patch" )
+
+pkg_pretend() {
+	[[ $(gcc-version) == "4.1" ]] && die "gcc 4.1 is not supported by gromacs"
+	use openmp && ! tc-has-openmp && \
+		die "Please switch to an openmp compatible compiler"
+}
+
+pkg_setup() {
+	python-single-r1_pkg_setup
+}
+
+src_unpack() {
+	if [[ ${PV} != *9999 ]]; then
+		default
+	else
+		git-r3_src_unpack
+		if use test; then
+			EGIT_REPO_URI="git://git.gromacs.org/regressiontests.git" \
+			EGIT_BRANCH="${EGIT_BRANCH}" \
+			EGIT_CHECKOUT_DIR="${WORKDIR}/regressiontests"\
+				git-r3_src_unpack
+		fi
+	fi
+}
+
+src_prepare() {
+	#notes/todos
+	# -on apple: there is framework support
+
+	xdg_environment_reset #591952
+
+	cmake_src_prepare
+
+	use cuda && cuda_src_prepare
+
+	GMX_DIRS=""
+	use single-precision && GMX_DIRS+=" float"
+	use double-precision && GMX_DIRS+=" double"
+
+	if use test; then
+		for x in ${GMX_DIRS}; do
+			mkdir -p "${WORKDIR}/${P}_${x}" || die
+			cp -al "${WORKDIR}/regressiontests"* "${WORKDIR}/${P}_${x}/tests" || die
+		done
+	fi
+
+	DOC_CONTENTS="Gromacs can use sci-chemistry/vmd to read additional file formats"
+
+	# try to create policy for imagemagik
+	mkdir -p ${HOME}/.config/ImageMagick
+	cat >> ${HOME}/.config/ImageMagick/policy.xml <<- EOF
+	<?xml version="1.0" encoding="UTF-8"?>
+	<!DOCTYPE policymap [
+	<!ELEMENT policymap (policy)+>
+	!ATTLIST policymap xmlns CDATA #FIXED ''>
+	<!ELEMENT policy EMPTY>
+	<!ATTLIST policy xmlns CDATA #FIXED '' domain NMTOKEN #REQUIRED
+			name NMTOKEN #IMPLIED pattern CDATA #IMPLIED rights NMTOKEN #IMPLIED
+			stealth NMTOKEN #IMPLIED value CDATA #IMPLIED>
+	]>
+	<policymap>
+		<policy domain="coder" rights="read | write" pattern="PS" />
+		<policy domain="coder" rights="read | write" pattern="PS2" />
+		<policy domain="coder" rights="read | write" pattern="PS3" />
+		<policy domain="coder" rights="read | write" pattern="EPS" />
+		<policy domain="coder" rights="read | write" pattern="PDF" />
+		<policy domain="coder" rights="read | write" pattern="XPS" />
+	</policymap>
+	EOF
+}
+
+src_configure() {
+	local mycmakeargs_pre=( ) extra fft_opts=( )
+
+	if use custom-cflags; then
+		#go from slowest to fastest acceleration
+		local acce="None"
+		if (use amd64 || use x86); then
+		use cpu_flags_x86_sse2 && acce="SSE2"
+		use cpu_flags_x86_sse4_1 && acce="SSE4.1"
+		use cpu_flags_x86_fma4 && acce="AVX_128_FMA"
+		use cpu_flags_x86_avx && acce="AVX_256"
+		use cpu_flags_x86_avx2 && acce="AVX2_256"
+		use cpu_flags_x86_avx512f && acce="AVX_512"
+		elif (use arm); then
+			use cpu_flags_arm_neon && acce="ARM_NEON"
+		elif (use arm64); then
+			use cpu_flags_arm_neon && acce="ARM_NEON_ASIMD"
+		fi
+	else
+		strip-flags
+	fi
+
+	#to create man pages, build tree binaries are executed (bug #398437)
+	[[ ${CHOST} = *-darwin* ]] && \
+		extra+=" -DCMAKE_BUILD_WITH_INSTALL_RPATH=OFF"
+
+	if use fftw; then
+		fft_opts=( -DGMX_FFT_LIBRARY=fftw3 )
+	elif use mkl && has_version "=sci-libs/mkl-10*"; then
+		fft_opts=( -DGMX_FFT_LIBRARY=mkl
+			-DMKL_INCLUDE_DIR="${MKLROOT}/include"
+			-DMKL_LIBRARIES="$(echo /opt/intel/mkl/10.0.5.025/lib/*/libmkl.so);$(echo /opt/intel/mkl/10.0.5.025/lib/*/libiomp*.so)"
+		)
+	elif use mkl; then
+		local bits=$(get_libdir)
+		fft_opts=( -DGMX_FFT_LIBRARY=mkl
+			-DMKL_INCLUDE_DIR="$(echo /opt/intel/*/mkl/include)"
+			-DMKL_LIBRARIES="$(echo /opt/intel/*/mkl/lib/*${bits/lib}/libmkl_rt.so)"
+		)
+	else
+		fft_opts=( -DGMX_FFT_LIBRARY=fftpack )
+	fi
+
+	if use lmfit; then
+		local lmfit_opts=( -DGMX_USE_LMFIT=EXTERNAL )
+	else
+		local lmfit_opts=( -DGMX_USE_LMFIT=INTERNAL )
+	fi
+
+	mycmakeargs_pre+=(
+		"${fft_opts[@]}"
+		"${lmfit_opts[@]}"
+		-DGMX_X11=$(usex X)
+		-DGMX_EXTERNAL_BLAS=$(usex blas)
+		-DGMX_EXTERNAL_LAPACK=$(usex lapack)
+		-DGMX_OPENMP=$(usex openmp)
+		-DGMX_COOL_QUOTES=$(usex offensive)
+		-DGMX_USE_TNG=$(usex tng)
+		-DGMX_BUILD_MANUAL=$(usex doc)
+		-DGMX_HWLOC=$(usex hwloc)
+		-DGMX_DEFAULT_SUFFIX=off
+		-DGMX_SIMD="$acce"
+		-DGMX_VMD_PLUGIN_PATH="${EPREFIX}/usr/$(get_libdir)/vmd/plugins/*/molfile/"
+		-DBUILD_TESTING=$(usex test)
+		-DGMX_BUILD_UNITTESTS=$(usex test)
+		-DPYTHON_EXECUTABLE="${EPREFIX}/usr/bin/${EPYTHON}"
+		${extra}
+	)
+
+	for x in ${GMX_DIRS}; do
+		einfo "Configuring for ${x} precision"
+		local suffix=""
+		#if we build single and double - double is suffixed
+		use double-precision && use single-precision && \
+			[[ ${x} = "double" ]] && suffix="_d"
+		local p
+		[[ ${x} = "double" ]] && p="-DGMX_DOUBLE=ON" || p="-DGMX_DOUBLE=OFF"
+		local gpu=( "-DGMX_GPU=OFF" )
+		[[ ${x} = "float" ]] && use cuda && gpu=( "-DGMX_GPU=CUDA" )
+		use opencl && gpu=( "-DGMX_GPU=OPENCL" )
+		mycmakeargs=(
+			${mycmakeargs_pre[@]} ${p}
+			-DGMX_MPI=OFF
+			-DGMX_THREAD_MPI=$(usex threads)
+			-DGMXAPI=$(usex gmxapi)
+			-DGMX_INSTALL_LEGACY_API=$(usex gmxapi-legacy)
+			"${gpu[@]}"
+			"$(use test && echo -DREGRESSIONTEST_PATH="${WORKDIR}/${P}_${x}/tests")"
+			-DGMX_BINARY_SUFFIX="${suffix}"
+			-DGMX_LIBS_SUFFIX="${suffix}"
+			-DGMX_PYTHON_PACKAGE=$(usex python)
+		)
+		BUILD_DIR="${WORKDIR}/${P}_${x}" cmake_src_configure
+		[[ ${CHOST} != *-darwin* ]] || \
+		  sed -i '/SET(CMAKE_INSTALL_NAME_DIR/s/^/#/' "${WORKDIR}/${P}_${x}/gentoo_rules.cmake" || die
+		use mpi || continue
+		einfo "Configuring for ${x} precision with mpi"
+		mycmakeargs=(
+			${mycmakeargs_pre[@]} ${p}
+			-DGMX_THREAD_MPI=OFF
+			-DGMX_MPI=ON
+			-DGMX_OPENMM=OFF
+			-DGMXAPI=OFF
+			"${opencl[@]}"
+			"${cuda[@]}"
+			-DGMX_BUILD_MDRUN_ONLY=ON
+			-DBUILD_SHARED_LIBS=OFF
+			-DGMX_BUILD_MANUAL=OFF
+			-DGMX_BINARY_SUFFIX="_mpi${suffix}"
+			-DGMX_LIBS_SUFFIX="_mpi${suffix}"
+			)
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi" CC="mpicc" cmake_src_configure
+		[[ ${CHOST} != *-darwin* ]] || \
+		  sed -i '/SET(CMAKE_INSTALL_NAME_DIR/s/^/#/' "${WORKDIR}/${P}_${x}_mpi/gentoo_rules.cmake" || die
+	done
+}
+
+src_compile() {
+	for x in ${GMX_DIRS}; do
+		einfo "Compiling for ${x} precision"
+		BUILD_DIR="${WORKDIR}/${P}_${x}"\
+			cmake_src_compile
+		if use python; then
+			BUILD_DIR="${WORKDIR}/${P}_${x}"\
+				cmake_src_compile	python_packaging/all
+			BUILD_DIR="${WORKDIR}/${P}" \
+				distutils-r1_src_compile
+		fi
+		# not 100% necessary for rel ebuilds as available from website
+		if use doc; then
+			BUILD_DIR="${WORKDIR}/${P}_${x}"\
+				cmake_src_compile manual
+		fi
+		use mpi || continue
+		einfo "Compiling for ${x} precision with mpi"
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi"\
+			cmake_src_compile
+	done
+}
+
+src_test() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}"\
+			cmake_src_make check
+	done
+}
+
+src_install() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}" \
+			cmake_src_install
+		if use python; then
+			BUILD_DIR="${WORKDIR}/${P}_${x}" \
+				cmake_src_install	python_packaging/install
+		fi
+		if use doc; then
+			newdoc "${WORKDIR}/${P}_${x}"/docs/manual/gromacs.pdf "${PN}-manual-${PV}.pdf"
+		fi
+		use mpi || continue
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi" \
+			cmake_src_install
+	done
+
+	if use tng; then
+		insinto /usr/include/tng
+		doins src/external/tng_io/include/tng/*h
+	fi
+	# drop unneeded stuff
+	rm "${ED}"/usr/bin/GMXRC* || die
+	for x in "${ED}"/usr/bin/gmx-completion-*.bash ; do
+		local n=${x##*/gmx-completion-}
+		n="${n%.bash}"
+		cat "${ED}"/usr/bin/gmx-completion.bash "$x" > "${T}/${n}" || die
+		newbashcomp "${T}"/"${n}" "${n}"
+	done
+	rm "${ED}"/usr/bin/gmx-completion*.bash || die
+	readme.gentoo_create_doc
+}
+
+pkg_postinst() {
+	einfo
+	einfo  "Please read and cite:"
+	einfo  "Gromacs 4, J. Chem. Theory Comput. 4, 435 (2008). "
+	einfo  "https://dx.doi.org/10.1021/ct700301q"
+	einfo
+	readme.gentoo_print_elog
+}
diff --git a/sci-chemistry/gromacs/gromacs-2021_beta1.ebuild b/sci-chemistry/gromacs/gromacs-2021_beta1.ebuild
new file mode 100644
index 000000000000..f3636cfc50f4
--- /dev/null
+++ b/sci-chemistry/gromacs/gromacs-2021_beta1.ebuild
@@ -0,0 +1,346 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+CMAKE_MAKEFILE_GENERATOR="ninja"
+
+PYTHON_COMPAT=( python3_{6,7,8,9} )
+
+DISTUTILS_SINGLE_IMPL=1
+
+inherit bash-completion-r1 cmake cuda distutils-r1 eutils flag-o-matic multilib readme.gentoo-r1 toolchain-funcs xdg-utils
+
+if [[ $PV = *9999* ]]; then
+	EGIT_REPO_URI="git://git.gromacs.org/gromacs.git
+		https://gerrit.gromacs.org/gromacs.git
+		https://github.com/gromacs/gromacs.git
+		https://repo.or.cz/r/gromacs.git"
+	[[ $PV = 9999 ]] && EGIT_BRANCH="master" || EGIT_BRANCH="release-${PV:0:4}"
+	inherit git-r3
+else
+	SRC_URI="
+		http://ftp.gromacs.org/pub/${PN}/${PN}-${PV/_/-}.tar.gz
+		test? ( http://ftp.gromacs.org/pub/regressiontests/regressiontests-${PV/_/-}.tar.gz )"
+	KEYWORDS="~amd64 ~arm ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x86-macos"
+fi
+
+ACCE_IUSE="cpu_flags_x86_sse2 cpu_flags_x86_sse4_1 cpu_flags_x86_fma4 cpu_flags_x86_avx cpu_flags_x86_avx2 cpu_flags_x86_avx512f cpu_flags_arm_neon"
+
+DESCRIPTION="The ultimate molecular dynamics simulation package"
+HOMEPAGE="http://www.gromacs.org/"
+
+# see COPYING for details
+# https://repo.or.cz/w/gromacs.git/blob/HEAD:/COPYING
+#        base,    vmd plugins, fftpack from numpy,  blas/lapck from netlib,        memtestG80 library,  mpi_thread lib
+LICENSE="LGPL-2.1 UoI-NCSA !mkl? ( !fftw? ( BSD ) !blas? ( BSD ) !lapack? ( BSD ) ) cuda? ( LGPL-3 ) threads? ( BSD )"
+SLOT="0/${PV}"
+IUSE="X blas cuda +custom-cflags +doc -double-precision +fftw +gmxapi +gmxapi-legacy +hwloc lapack +lmfit mkl mpi +offensive opencl openmp +python +single-precision test +threads +tng ${ACCE_IUSE}"
+
+CDEPEND="
+	X? (
+		x11-libs/libX11
+		x11-libs/libSM
+		x11-libs/libICE
+		)
+	blas? ( virtual/blas )
+	cuda? ( >=dev-util/nvidia-cuda-toolkit-6.5.14 )
+	opencl? ( virtual/opencl )
+	fftw? ( sci-libs/fftw:3.0 )
+	hwloc? ( sys-apps/hwloc )
+	lapack? ( virtual/lapack )
+	lmfit? ( sci-libs/lmfit )
+	mkl? ( sci-libs/mkl )
+	mpi? ( virtual/mpi )
+	${PYTHON_DEPS}
+	!sci-chemistry/gmxapi
+	"
+BDEPEND="${CDEPEND}
+	virtual/pkgconfig
+	doc? (
+		app-doc/doxygen
+		$(python_gen_cond_dep '
+			dev-python/sphinx[${PYTHON_MULTI_USEDEP}]
+		')
+		media-gfx/mscgen
+		media-gfx/graphviz
+		dev-texlive/texlive-latex
+		dev-texlive/texlive-latexextra
+		media-gfx/imagemagick
+	)"
+RDEPEND="${CDEPEND}"
+
+REQUIRED_USE="
+	|| ( single-precision double-precision )
+	cuda? ( single-precision )
+	cuda? ( !opencl )
+	mkl? ( !blas !fftw !lapack )
+	${PYTHON_REQUIRED_USE}"
+
+DOCS=( AUTHORS README )
+
+RESTRICT="!test? ( test )"
+
+if [[ ${PV} != *9999 ]]; then
+	S="${WORKDIR}/${PN}-${PV/_/-}"
+fi
+
+PATCHES=( "${FILESDIR}/${PN}-2020_beta1-pytest.patch" )
+
+pkg_pretend() {
+	[[ $(gcc-version) == "4.1" ]] && die "gcc 4.1 is not supported by gromacs"
+	use openmp && ! tc-has-openmp && \
+		die "Please switch to an openmp compatible compiler"
+}
+
+pkg_setup() {
+	python-single-r1_pkg_setup
+}
+
+src_unpack() {
+	if [[ ${PV} != *9999 ]]; then
+		default
+	else
+		git-r3_src_unpack
+		if use test; then
+			EGIT_REPO_URI="git://git.gromacs.org/regressiontests.git" \
+			EGIT_BRANCH="${EGIT_BRANCH}" \
+			EGIT_CHECKOUT_DIR="${WORKDIR}/regressiontests"\
+				git-r3_src_unpack
+		fi
+	fi
+}
+
+src_prepare() {
+	#notes/todos
+	# -on apple: there is framework support
+
+	xdg_environment_reset #591952
+
+	cmake_src_prepare
+
+	use cuda && cuda_src_prepare
+
+	GMX_DIRS=""
+	use single-precision && GMX_DIRS+=" float"
+	use double-precision && GMX_DIRS+=" double"
+
+	if use test; then
+		for x in ${GMX_DIRS}; do
+			mkdir -p "${WORKDIR}/${P}_${x}" || die
+			cp -al "${WORKDIR}/regressiontests"* "${WORKDIR}/${P}_${x}/tests" || die
+		done
+	fi
+
+	DOC_CONTENTS="Gromacs can use sci-chemistry/vmd to read additional file formats"
+
+	# try to create policy for imagemagik
+	mkdir -p ${HOME}/.config/ImageMagick
+	cat >> ${HOME}/.config/ImageMagick/policy.xml <<- EOF
+	<?xml version="1.0" encoding="UTF-8"?>
+	<!DOCTYPE policymap [
+	<!ELEMENT policymap (policy)+>
+	!ATTLIST policymap xmlns CDATA #FIXED ''>
+	<!ELEMENT policy EMPTY>
+	<!ATTLIST policy xmlns CDATA #FIXED '' domain NMTOKEN #REQUIRED
+			name NMTOKEN #IMPLIED pattern CDATA #IMPLIED rights NMTOKEN #IMPLIED
+			stealth NMTOKEN #IMPLIED value CDATA #IMPLIED>
+	]>
+	<policymap>
+		<policy domain="coder" rights="read | write" pattern="PS" />
+		<policy domain="coder" rights="read | write" pattern="PS2" />
+		<policy domain="coder" rights="read | write" pattern="PS3" />
+		<policy domain="coder" rights="read | write" pattern="EPS" />
+		<policy domain="coder" rights="read | write" pattern="PDF" />
+		<policy domain="coder" rights="read | write" pattern="XPS" />
+	</policymap>
+	EOF
+}
+
+src_configure() {
+	local mycmakeargs_pre=( ) extra fft_opts=( )
+
+	if use custom-cflags; then
+		#go from slowest to fastest acceleration
+		local acce="None"
+		if (use amd64 || use x86); then
+		use cpu_flags_x86_sse2 && acce="SSE2"
+		use cpu_flags_x86_sse4_1 && acce="SSE4.1"
+		use cpu_flags_x86_fma4 && acce="AVX_128_FMA"
+		use cpu_flags_x86_avx && acce="AVX_256"
+		use cpu_flags_x86_avx2 && acce="AVX2_256"
+		use cpu_flags_x86_avx512f && acce="AVX_512"
+		elif (use arm); then
+			use cpu_flags_arm_neon && acce="ARM_NEON"
+		elif (use arm64); then
+			use cpu_flags_arm_neon && acce="ARM_NEON_ASIMD"
+		fi
+	else
+		strip-flags
+	fi
+
+	#to create man pages, build tree binaries are executed (bug #398437)
+	[[ ${CHOST} = *-darwin* ]] && \
+		extra+=" -DCMAKE_BUILD_WITH_INSTALL_RPATH=OFF"
+
+	if use fftw; then
+		fft_opts=( -DGMX_FFT_LIBRARY=fftw3 )
+	elif use mkl && has_version "=sci-libs/mkl-10*"; then
+		fft_opts=( -DGMX_FFT_LIBRARY=mkl
+			-DMKL_INCLUDE_DIR="${MKLROOT}/include"
+			-DMKL_LIBRARIES="$(echo /opt/intel/mkl/10.0.5.025/lib/*/libmkl.so);$(echo /opt/intel/mkl/10.0.5.025/lib/*/libiomp*.so)"
+		)
+	elif use mkl; then
+		local bits=$(get_libdir)
+		fft_opts=( -DGMX_FFT_LIBRARY=mkl
+			-DMKL_INCLUDE_DIR="$(echo /opt/intel/*/mkl/include)"
+			-DMKL_LIBRARIES="$(echo /opt/intel/*/mkl/lib/*${bits/lib}/libmkl_rt.so)"
+		)
+	else
+		fft_opts=( -DGMX_FFT_LIBRARY=fftpack )
+	fi
+
+	if use lmfit; then
+		local lmfit_opts=( -DGMX_USE_LMFIT=EXTERNAL )
+	else
+		local lmfit_opts=( -DGMX_USE_LMFIT=INTERNAL )
+	fi
+
+	mycmakeargs_pre+=(
+		"${fft_opts[@]}"
+		"${lmfit_opts[@]}"
+		-DGMX_X11=$(usex X)
+		-DGMX_EXTERNAL_BLAS=$(usex blas)
+		-DGMX_EXTERNAL_LAPACK=$(usex lapack)
+		-DGMX_OPENMP=$(usex openmp)
+		-DGMX_COOL_QUOTES=$(usex offensive)
+		-DGMX_USE_TNG=$(usex tng)
+		-DGMX_BUILD_MANUAL=$(usex doc)
+		-DGMX_HWLOC=$(usex hwloc)
+		-DGMX_DEFAULT_SUFFIX=off
+		-DGMX_SIMD="$acce"
+		-DGMX_VMD_PLUGIN_PATH="${EPREFIX}/usr/$(get_libdir)/vmd/plugins/*/molfile/"
+		-DBUILD_TESTING=$(usex test)
+		-DGMX_BUILD_UNITTESTS=$(usex test)
+		-DPYTHON_EXECUTABLE="${EPREFIX}/usr/bin/${EPYTHON}"
+		${extra}
+	)
+
+	for x in ${GMX_DIRS}; do
+		einfo "Configuring for ${x} precision"
+		local suffix=""
+		#if we build single and double - double is suffixed
+		use double-precision && use single-precision && \
+			[[ ${x} = "double" ]] && suffix="_d"
+		local p
+		[[ ${x} = "double" ]] && p="-DGMX_DOUBLE=ON" || p="-DGMX_DOUBLE=OFF"
+		local gpu=( "-DGMX_GPU=OFF" )
+		[[ ${x} = "float" ]] && use cuda && gpu=( "-DGMX_GPU=CUDA" )
+		use opencl && gpu=( "-DGMX_GPU=OPENCL" )
+		mycmakeargs=(
+			${mycmakeargs_pre[@]} ${p}
+			-DGMX_MPI=OFF
+			-DGMX_THREAD_MPI=$(usex threads)
+			-DGMXAPI=$(usex gmxapi)
+			-DGMX_INSTALL_LEGACY_API=$(usex gmxapi-legacy)
+			"${gpu[@]}"
+			"$(use test && echo -DREGRESSIONTEST_PATH="${WORKDIR}/${P}_${x}/tests")"
+			-DGMX_BINARY_SUFFIX="${suffix}"
+			-DGMX_LIBS_SUFFIX="${suffix}"
+			-DGMX_PYTHON_PACKAGE=$(usex python)
+		)
+		BUILD_DIR="${WORKDIR}/${P}_${x}" cmake_src_configure
+		[[ ${CHOST} != *-darwin* ]] || \
+		  sed -i '/SET(CMAKE_INSTALL_NAME_DIR/s/^/#/' "${WORKDIR}/${P}_${x}/gentoo_rules.cmake" || die
+		use mpi || continue
+		einfo "Configuring for ${x} precision with mpi"
+		mycmakeargs=(
+			${mycmakeargs_pre[@]} ${p}
+			-DGMX_THREAD_MPI=OFF
+			-DGMX_MPI=ON
+			-DGMX_OPENMM=OFF
+			-DGMXAPI=OFF
+			"${opencl[@]}"
+			"${cuda[@]}"
+			-DGMX_BUILD_MDRUN_ONLY=ON
+			-DBUILD_SHARED_LIBS=OFF
+			-DGMX_BUILD_MANUAL=OFF
+			-DGMX_BINARY_SUFFIX="_mpi${suffix}"
+			-DGMX_LIBS_SUFFIX="_mpi${suffix}"
+			)
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi" CC="mpicc" cmake_src_configure
+		[[ ${CHOST} != *-darwin* ]] || \
+		  sed -i '/SET(CMAKE_INSTALL_NAME_DIR/s/^/#/' "${WORKDIR}/${P}_${x}_mpi/gentoo_rules.cmake" || die
+	done
+}
+
+src_compile() {
+	for x in ${GMX_DIRS}; do
+		einfo "Compiling for ${x} precision"
+		BUILD_DIR="${WORKDIR}/${P}_${x}"\
+			cmake_src_compile
+		if use python; then
+			BUILD_DIR="${WORKDIR}/${P}_${x}"\
+				cmake_src_compile	python_packaging/all
+			BUILD_DIR="${WORKDIR}/${P}" \
+				distutils-r1_src_compile
+		fi
+		# not 100% necessary for rel ebuilds as available from website
+		if use doc; then
+			BUILD_DIR="${WORKDIR}/${P}_${x}"\
+				cmake_src_compile manual
+		fi
+		use mpi || continue
+		einfo "Compiling for ${x} precision with mpi"
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi"\
+			cmake_src_compile
+	done
+}
+
+src_test() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}"\
+			cmake_src_make check
+	done
+}
+
+src_install() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}" \
+			cmake_src_install
+		if use python; then
+			BUILD_DIR="${WORKDIR}/${P}_${x}" \
+				cmake_src_install	python_packaging/install
+		fi
+		if use doc; then
+			newdoc "${WORKDIR}/${P}_${x}"/docs/manual/gromacs.pdf "${PN}-manual-${PV}.pdf"
+		fi
+		use mpi || continue
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi" \
+			cmake_src_install
+	done
+
+	if use tng; then
+		insinto /usr/include/tng
+		doins src/external/tng_io/include/tng/*h
+	fi
+	# drop unneeded stuff
+	rm "${ED}"/usr/bin/GMXRC* || die
+	for x in "${ED}"/usr/bin/gmx-completion-*.bash ; do
+		local n=${x##*/gmx-completion-}
+		n="${n%.bash}"
+		cat "${ED}"/usr/bin/gmx-completion.bash "$x" > "${T}/${n}" || die
+		newbashcomp "${T}"/"${n}" "${n}"
+	done
+	rm "${ED}"/usr/bin/gmx-completion*.bash || die
+	readme.gentoo_create_doc
+}
+
+pkg_postinst() {
+	einfo
+	einfo  "Please read and cite:"
+	einfo  "Gromacs 4, J. Chem. Theory Comput. 4, 435 (2008). "
+	einfo  "https://dx.doi.org/10.1021/ct700301q"
+	einfo
+	readme.gentoo_print_elog
+}
diff --git a/sci-chemistry/gromacs/gromacs-9999.ebuild b/sci-chemistry/gromacs/gromacs-9999.ebuild
index 808f5df33db2..f3636cfc50f4 100644
--- a/sci-chemistry/gromacs/gromacs-9999.ebuild
+++ b/sci-chemistry/gromacs/gromacs-9999.ebuild
@@ -9,7 +9,7 @@ PYTHON_COMPAT=( python3_{6,7,8,9} )
 
 DISTUTILS_SINGLE_IMPL=1
 
-inherit bash-completion-r1 cmake cuda distutils-r1 eutils multilib readme.gentoo-r1 toolchain-funcs xdg-utils
+inherit bash-completion-r1 cmake cuda distutils-r1 eutils flag-o-matic multilib readme.gentoo-r1 toolchain-funcs xdg-utils
 
 if [[ $PV = *9999* ]]; then
 	EGIT_REPO_URI="git://git.gromacs.org/gromacs.git
@@ -19,12 +19,13 @@ if [[ $PV = *9999* ]]; then
 	[[ $PV = 9999 ]] && EGIT_BRANCH="master" || EGIT_BRANCH="release-${PV:0:4}"
 	inherit git-r3
 else
-	SRC_URI="ftp://ftp.gromacs.org/pub/${PN}/${PN}-${PV/_/-}.tar.gz
-		test? ( http://gerrit.gromacs.org/download/regressiontests-${PV/_/-}.tar.gz )"
+	SRC_URI="
+		http://ftp.gromacs.org/pub/${PN}/${PN}-${PV/_/-}.tar.gz
+		test? ( http://ftp.gromacs.org/pub/regressiontests/regressiontests-${PV/_/-}.tar.gz )"
 	KEYWORDS="~amd64 ~arm ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x86-macos"
 fi
 
-ACCE_IUSE="cpu_flags_x86_sse2 cpu_flags_x86_sse4_1 cpu_flags_x86_fma4 cpu_flags_x86_avx cpu_flags_x86_avx2"
+ACCE_IUSE="cpu_flags_x86_sse2 cpu_flags_x86_sse4_1 cpu_flags_x86_fma4 cpu_flags_x86_avx cpu_flags_x86_avx2 cpu_flags_x86_avx512f cpu_flags_arm_neon"
 
 DESCRIPTION="The ultimate molecular dynamics simulation package"
 HOMEPAGE="http://www.gromacs.org/"
@@ -34,7 +35,7 @@ HOMEPAGE="http://www.gromacs.org/"
 #        base,    vmd plugins, fftpack from numpy,  blas/lapck from netlib,        memtestG80 library,  mpi_thread lib
 LICENSE="LGPL-2.1 UoI-NCSA !mkl? ( !fftw? ( BSD ) !blas? ( BSD ) !lapack? ( BSD ) ) cuda? ( LGPL-3 ) threads? ( BSD )"
 SLOT="0/${PV}"
-IUSE="X blas cuda +doc -double-precision +fftw +gmxapi +gmxapi-legacy +hwloc lapack +lmfit mkl mpi +offensive opencl openmp +python +single-precision test +threads +tng ${ACCE_IUSE}"
+IUSE="X blas cuda +custom-cflags +doc -double-precision +fftw +gmxapi +gmxapi-legacy +hwloc lapack +lmfit mkl mpi +offensive opencl openmp +python +single-precision test +threads +tng ${ACCE_IUSE}"
 
 CDEPEND="
 	X? (
@@ -159,13 +160,24 @@ src_prepare() {
 src_configure() {
 	local mycmakeargs_pre=( ) extra fft_opts=( )
 
-	#go from slowest to fastest acceleration
-	local acce="None"
-	use cpu_flags_x86_sse2 && acce="SSE2"
-	use cpu_flags_x86_sse4_1 && acce="SSE4.1"
-	use cpu_flags_x86_fma4 && acce="AVX_128_FMA"
-	use cpu_flags_x86_avx && acce="AVX_256"
-	use cpu_flags_x86_avx2 && acce="AVX2_256"
+	if use custom-cflags; then
+		#go from slowest to fastest acceleration
+		local acce="None"
+		if (use amd64 || use x86); then
+		use cpu_flags_x86_sse2 && acce="SSE2"
+		use cpu_flags_x86_sse4_1 && acce="SSE4.1"
+		use cpu_flags_x86_fma4 && acce="AVX_128_FMA"
+		use cpu_flags_x86_avx && acce="AVX_256"
+		use cpu_flags_x86_avx2 && acce="AVX2_256"
+		use cpu_flags_x86_avx512f && acce="AVX_512"
+		elif (use arm); then
+			use cpu_flags_arm_neon && acce="ARM_NEON"
+		elif (use arm64); then
+			use cpu_flags_arm_neon && acce="ARM_NEON_ASIMD"
+		fi
+	else
+		strip-flags
+	fi
 
 	#to create man pages, build tree binaries are executed (bug #398437)
 	[[ ${CHOST} = *-darwin* ]] && \
@@ -222,24 +234,21 @@ src_configure() {
 			[[ ${x} = "double" ]] && suffix="_d"
 		local p
 		[[ ${x} = "double" ]] && p="-DGMX_DOUBLE=ON" || p="-DGMX_DOUBLE=OFF"
-		local cuda=( "-DGMX_GPU=OFF" )
-		[[ ${x} = "float" ]] && use cuda && \
-			cuda=( "-DGMX_GPU=ON" )
-		local opencl=( "-DGMX_USE_OPENCL=OFF" )
-		use opencl && opencl=( "-DGMX_USE_OPENCL=ON" ) cuda=( "-DGMX_GPU=ON" )
+		local gpu=( "-DGMX_GPU=OFF" )
+		[[ ${x} = "float" ]] && use cuda && gpu=( "-DGMX_GPU=CUDA" )
+		use opencl && gpu=( "-DGMX_GPU=OPENCL" )
 		mycmakeargs=(
 			${mycmakeargs_pre[@]} ${p}
 			-DGMX_MPI=OFF
 			-DGMX_THREAD_MPI=$(usex threads)
 			-DGMXAPI=$(usex gmxapi)
 			-DGMX_INSTALL_LEGACY_API=$(usex gmxapi-legacy)
-			"${opencl[@]}"
-			"${cuda[@]}"
+			"${gpu[@]}"
 			"$(use test && echo -DREGRESSIONTEST_PATH="${WORKDIR}/${P}_${x}/tests")"
 			-DGMX_BINARY_SUFFIX="${suffix}"
 			-DGMX_LIBS_SUFFIX="${suffix}"
 			-DGMX_PYTHON_PACKAGE=$(usex python)
-			)
+		)
 		BUILD_DIR="${WORKDIR}/${P}_${x}" cmake_src_configure
 		[[ ${CHOST} != *-darwin* ]] || \
 		  sed -i '/SET(CMAKE_INSTALL_NAME_DIR/s/^/#/' "${WORKDIR}/${P}_${x}/gentoo_rules.cmake" || die