sci-chemistry/gromacs: import live builds from sci overlay

Package-Manager: portage-2.2.28

8 files changed, 1618 insertions, 1 deletions

diff --git a/sci-chemistry/gromacs/Manifest b/sci-chemistry/gromacs/Manifest
index ae53fba18798..c0c3d238d866 100644
--- a/sci-chemistry/gromacs/Manifest
+++ b/sci-chemistry/gromacs/Manifest
@@ -1,6 +1,8 @@
+DIST gromacs-2016-rc1.tar.gz 27322876 SHA256 69a307009cd9015b09af3c39ed4b193e71c59deccc3b34e758b3b9b5a34f7a47 SHA512 9c74ab718c9c894525524c0612aac93246be8aff86491f4b4854783d5e112c346b8c6bd185ec951a76aa398fdb2132abf42bb27b644440ceb6f6baeeede9c3a0 WHIRLPOOL cdb4d417770720069c6e1de2930d36f3a952ce9b2d111d1dd9a2f3b87d28cc199a17745db2c580da6606eb9dd59dfd9c4ddb5297de08202067dee0160a3a985e
 DIST gromacs-5.0.4.tar.gz 26342095 SHA256 78068eeccc0b950018ddb45c41280e53c8bedae4639dca48e17c940f8896b23b SHA512 bc62b623bf71dcaa948aaf7563a3d3afa973da0702062848a20323db202e862dcee413197dacd1472866ccb40fce7709e283177b1c6c49514064f23e6c46b5ee WHIRLPOOL d8458d3d563e015e830622ae0c924e896765a6329ffe4cb1a31c7aef3c804f392d29e3f1db5617051e85058403422f7d69a160a6c7cc810564696d88f9d50bd4
 DIST gromacs-5.0.7.tar.gz 26358119 SHA256 23bc5ae28e0e274965966f0a00e44ec6ffbc28c5cd2d6b64a0aa0a2bc59472ec SHA512 612dba608fe6fd3a6fd69d1edeb97ec2975361ab44ea5219990901cecafbbe542a2c8bc6acc3f89b7fdcda77ab1b0762977ddc48cc1523155f7033e4e000660f WHIRLPOOL 26292f8751c2238f4fd9a63cb64888c2d236237dc140f08b45997b87b917b096d3d7c8451e5e0633e71cd770d7e7336dbbd3056777e290d0232a902ee4018e4b
 DIST gromacs-5.1.2.tar.gz 26562718 SHA256 39d6f1d7ae8ba38cea6089da40676bfa4049a49903d21551abc030992a58f304 SHA512 ddd29bba97eaf8c32f7f5daa441c1aac85222881a9cf7757f55ef7f1a15f8f45cdc600eb90059053205d71652281c85601e107ff5928425afdb0c13e8ef1de69 WHIRLPOOL 12f217e480bd04cd0cfb68c22345cfe2cd77f9417f0f873ff61aeea734aa33d61810db4e1539cd265f1ffcf2df123353592c6176aa8dce236b64de74a97a76e0
+DIST regressiontests-2016-rc1.tar.gz 66629314 SHA256 63fcf8fcb1371478b705dd8f44f2c284ac8c6f3e7eb8146f751f6e0e0f2db415 SHA512 8900efb605d69aa723bab398556a9b0d94da2b25d55948a3903f2d5a47c0f89306fffe3b0c7e780508b301463243bc73191a9dee6494ab288ca89831e71f741a WHIRLPOOL a205113884c65de4e9a75f0af59a1be910cf82a7fca8ba561c13815793f98ee0af342a0318044c49c757c8b25cfebb8b42299e885345e7f1af695f2e2b591297
 DIST regressiontests-5.0.4.tar.gz 65193251 SHA256 89ad9bc067035ac8f340319b538c446983d937b910067e871911d7afe2ecb3f0 SHA512 747725fa28c1c9525596bdeeb8809e45268e19036c11dac67d043aa1c51748688ca37eb6014eb7e819eb927a8b9ca2631d0ace4cdff8ed491b08c316c530ab65 WHIRLPOOL e15ccab0a0beefac41aeff11e2e596e971167f1590eed159ff82c4a8e3aec1d234287be597026951904ecfe6099f30ef3bcd48f2098b9f5201bde62e15fbc4f9
 DIST regressiontests-5.0.7.tar.gz 65204051 SHA256 831c5f52b941826842a5312e3c6cd74a6410938bc5876d3f32d53215d64fb084 SHA512 2e93c84f62772eaf6facd45db67f51f751b4fa80923c71bc4fb293b33361b1314d714020bd8d50a1d0859aeedd67ce76f593e82ef31372128cbb8555eb6446b1 WHIRLPOOL b050f80946a76e752d53ccadd378ec0869f3221706a29f87d262a46fb11941b600d27b5388a5311a4fde53d60560f907150f884212e2d49a3df4b2519d1ceb3e
 DIST regressiontests-5.1.2.tar.gz 66704132 SHA256 3e4704308da282e2e8e2550f6acae029353bf42ede4b1eccb20b157e399f3cf7 SHA512 b53fb36d5ce00361998ca9eb2121efc0d616e628ad81bf08c7fdc2cc43929cbc2e528cdd8260036235960ad96363b496aadd345d55fc100cdf02d680b2cca996 WHIRLPOOL 0859db2e0e51d56752f17d6021c2e5f6a6b820236aff731dd18335b3bde94899985c96bbe98f62c9144d8ff88fcc7e6f3091cf78618d7734345cfe71f0f6a026
diff --git a/sci-chemistry/gromacs/gromacs-2016.9999.ebuild b/sci-chemistry/gromacs/gromacs-2016.9999.ebuild
new file mode 100644
index 000000000000..1ca034301050
--- /dev/null
+++ b/sci-chemistry/gromacs/gromacs-2016.9999.ebuild
@@ -0,0 +1,266 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=6
+
+CMAKE_MAKEFILE_GENERATOR="ninja"
+
+inherit bash-completion-r1 cmake-utils cuda eutils multilib readme.gentoo-r1 toolchain-funcs
+
+if [[ $PV = *9999* ]]; then
+	EGIT_REPO_URI="git://git.gromacs.org/gromacs.git
+		https://gerrit.gromacs.org/gromacs.git
+		git://github.com/gromacs/gromacs.git
+		http://repo.or.cz/r/gromacs.git"
+	[[ $PV = 9999 ]] && EGIT_BRANCH="master" || EGIT_BRANCH="release-${PV:0:1}-${PV:2:1}"
+	inherit git-r3
+	KEYWORDS=""
+else
+	SRC_URI="ftp://ftp.gromacs.org/pub/${PN}/${PN}-${PV/_/-}.tar.gz
+		test? ( http://gerrit.gromacs.org/download/regressiontests-${PV/_/-}.tar.gz )"
+	KEYWORDS="~alpha ~amd64 ~arm ~ppc64 ~sparc ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x86-macos"
+fi
+
+ACCE_IUSE="cpu_flags_x86_sse2 cpu_flags_x86_sse4_1 cpu_flags_x86_fma4 cpu_flags_x86_avx cpu_flags_x86_avx2"
+
+DESCRIPTION="The ultimate molecular dynamics simulation package"
+HOMEPAGE="http://www.gromacs.org/"
+
+# see COPYING for details
+# http://repo.or.cz/w/gromacs.git/blob/HEAD:/COPYING
+#        base,    vmd plugins, fftpack from numpy,  blas/lapck from netlib,        memtestG80 library,  mpi_thread lib
+LICENSE="LGPL-2.1 UoI-NCSA !mkl? ( !fftw? ( BSD ) !blas? ( BSD ) !lapack? ( BSD ) ) cuda? ( LGPL-3 ) threads? ( BSD )"
+SLOT="0/${PV}"
+IUSE="X blas cuda +doc -double-precision +fftw +hwloc lapack mkl mpi +offensive openmp +single-precision test +threads +tng ${ACCE_IUSE}"
+
+CDEPEND="
+	X? (
+		x11-libs/libX11
+		x11-libs/libSM
+		x11-libs/libICE
+		)
+	blas? ( virtual/blas )
+	cuda? ( >=dev-util/nvidia-cuda-toolkit-4.2.9-r1 )
+	fftw? ( sci-libs/fftw:3.0 )
+	hwloc? ( sys-apps/hwloc )
+	lapack? ( virtual/lapack )
+	mkl? ( sci-libs/mkl )
+	mpi? ( virtual/mpi )
+	"
+DEPEND="${CDEPEND}
+	virtual/pkgconfig
+	doc? (
+		app-doc/doxygen
+		dev-texlive/texlive-latex
+		dev-texlive/texlive-latexextra
+		media-gfx/imagemagick
+	)"
+RDEPEND="${CDEPEND}"
+
+REQUIRED_USE="
+	|| ( single-precision double-precision )
+	cuda? ( single-precision )
+	mkl? ( !blas !fftw !lapack )"
+
+DOCS=( AUTHORS README )
+
+if [[ ${PV} != *9999 ]]; then
+	S="${WORKDIR}/${PN}-${PV/_/-}"
+fi
+
+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"
+}
+
+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
+
+	cmake-utils_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"
+}
+
+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"
+
+	#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
+
+	mycmakeargs_pre+=(
+		"${fft_opts[@]}"
+		-DGMX_X11=$(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_LIB_INSTALL_DIR="$(get_libdir)"
+		-DGMX_VMD_PLUGIN_PATH="${EPREFIX}/usr/$(get_libdir)/vmd/plugins/*/molfile/"
+		-DBUILD_TESTING=OFF
+		-DGMX_BUILD_UNITTESTS=OFF
+		${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 cuda=( "-DGMX_GPU=OFF" )
+		[[ ${x} = "float" ]] && use cuda && \
+			cuda=( -DGMX_GPU=ON )
+		mycmakeargs=(
+			${mycmakeargs_pre[@]} ${p}
+			-DGMX_MPI=OFF
+			-DGMX_THREAD_MPI=$(usex threads)
+			"${cuda[@]}"
+			"$(use test && echo -DREGRESSIONTEST_PATH="${WORKDIR}/${P}_${x}/tests")"
+			-DGMX_BINARY_SUFFIX="${suffix}"
+			-DGMX_LIBS_SUFFIX="${suffix}"
+			)
+		BUILD_DIR="${WORKDIR}/${P}_${x}" cmake-utils_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 ${cuda}
+			-DGMX_OPENMM=OFF
+			-DGMX_BUILD_MDRUN_ONLY=ON
+			-DBUILD_SHARED_LIBS=OFF
+			-DGMX_BUILD_MANUAL=OFF
+			-DGMX_BINARY_SUFFIX="_mpi${suffix}"
+			-DGMX_LIBS_SUFFIX="_mpi${suffix}"
+			)
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi" CC="mpicc" cmake-utils_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-utils_src_compile
+		# not 100% necessary for rel ebuilds as available from website
+		if use doc; then
+			BUILD_DIR="${WORKDIR}/${P}_${x}"\
+				cmake-utils_src_compile manual
+		fi
+		use mpi || continue
+		einfo "Compiling for ${x} precision with mpi"
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi"\
+			cmake-utils_src_compile
+	done
+}
+
+src_test() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}"\
+			cmake-utils_src_make check
+	done
+}
+
+src_install() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}" \
+			cmake-utils_src_install
+		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-utils_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  "http://dx.doi.org/10.1021/ct700301q"
+	einfo
+	readme.gentoo_print_elog
+}
diff --git a/sci-chemistry/gromacs/gromacs-2016_rc1.ebuild b/sci-chemistry/gromacs/gromacs-2016_rc1.ebuild
new file mode 100644
index 000000000000..1ca034301050
--- /dev/null
+++ b/sci-chemistry/gromacs/gromacs-2016_rc1.ebuild
@@ -0,0 +1,266 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=6
+
+CMAKE_MAKEFILE_GENERATOR="ninja"
+
+inherit bash-completion-r1 cmake-utils cuda eutils multilib readme.gentoo-r1 toolchain-funcs
+
+if [[ $PV = *9999* ]]; then
+	EGIT_REPO_URI="git://git.gromacs.org/gromacs.git
+		https://gerrit.gromacs.org/gromacs.git
+		git://github.com/gromacs/gromacs.git
+		http://repo.or.cz/r/gromacs.git"
+	[[ $PV = 9999 ]] && EGIT_BRANCH="master" || EGIT_BRANCH="release-${PV:0:1}-${PV:2:1}"
+	inherit git-r3
+	KEYWORDS=""
+else
+	SRC_URI="ftp://ftp.gromacs.org/pub/${PN}/${PN}-${PV/_/-}.tar.gz
+		test? ( http://gerrit.gromacs.org/download/regressiontests-${PV/_/-}.tar.gz )"
+	KEYWORDS="~alpha ~amd64 ~arm ~ppc64 ~sparc ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x86-macos"
+fi
+
+ACCE_IUSE="cpu_flags_x86_sse2 cpu_flags_x86_sse4_1 cpu_flags_x86_fma4 cpu_flags_x86_avx cpu_flags_x86_avx2"
+
+DESCRIPTION="The ultimate molecular dynamics simulation package"
+HOMEPAGE="http://www.gromacs.org/"
+
+# see COPYING for details
+# http://repo.or.cz/w/gromacs.git/blob/HEAD:/COPYING
+#        base,    vmd plugins, fftpack from numpy,  blas/lapck from netlib,        memtestG80 library,  mpi_thread lib
+LICENSE="LGPL-2.1 UoI-NCSA !mkl? ( !fftw? ( BSD ) !blas? ( BSD ) !lapack? ( BSD ) ) cuda? ( LGPL-3 ) threads? ( BSD )"
+SLOT="0/${PV}"
+IUSE="X blas cuda +doc -double-precision +fftw +hwloc lapack mkl mpi +offensive openmp +single-precision test +threads +tng ${ACCE_IUSE}"
+
+CDEPEND="
+	X? (
+		x11-libs/libX11
+		x11-libs/libSM
+		x11-libs/libICE
+		)
+	blas? ( virtual/blas )
+	cuda? ( >=dev-util/nvidia-cuda-toolkit-4.2.9-r1 )
+	fftw? ( sci-libs/fftw:3.0 )
+	hwloc? ( sys-apps/hwloc )
+	lapack? ( virtual/lapack )
+	mkl? ( sci-libs/mkl )
+	mpi? ( virtual/mpi )
+	"
+DEPEND="${CDEPEND}
+	virtual/pkgconfig
+	doc? (
+		app-doc/doxygen
+		dev-texlive/texlive-latex
+		dev-texlive/texlive-latexextra
+		media-gfx/imagemagick
+	)"
+RDEPEND="${CDEPEND}"
+
+REQUIRED_USE="
+	|| ( single-precision double-precision )
+	cuda? ( single-precision )
+	mkl? ( !blas !fftw !lapack )"
+
+DOCS=( AUTHORS README )
+
+if [[ ${PV} != *9999 ]]; then
+	S="${WORKDIR}/${PN}-${PV/_/-}"
+fi
+
+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"
+}
+
+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
+
+	cmake-utils_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"
+}
+
+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"
+
+	#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
+
+	mycmakeargs_pre+=(
+		"${fft_opts[@]}"
+		-DGMX_X11=$(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_LIB_INSTALL_DIR="$(get_libdir)"
+		-DGMX_VMD_PLUGIN_PATH="${EPREFIX}/usr/$(get_libdir)/vmd/plugins/*/molfile/"
+		-DBUILD_TESTING=OFF
+		-DGMX_BUILD_UNITTESTS=OFF
+		${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 cuda=( "-DGMX_GPU=OFF" )
+		[[ ${x} = "float" ]] && use cuda && \
+			cuda=( -DGMX_GPU=ON )
+		mycmakeargs=(
+			${mycmakeargs_pre[@]} ${p}
+			-DGMX_MPI=OFF
+			-DGMX_THREAD_MPI=$(usex threads)
+			"${cuda[@]}"
+			"$(use test && echo -DREGRESSIONTEST_PATH="${WORKDIR}/${P}_${x}/tests")"
+			-DGMX_BINARY_SUFFIX="${suffix}"
+			-DGMX_LIBS_SUFFIX="${suffix}"
+			)
+		BUILD_DIR="${WORKDIR}/${P}_${x}" cmake-utils_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 ${cuda}
+			-DGMX_OPENMM=OFF
+			-DGMX_BUILD_MDRUN_ONLY=ON
+			-DBUILD_SHARED_LIBS=OFF
+			-DGMX_BUILD_MANUAL=OFF
+			-DGMX_BINARY_SUFFIX="_mpi${suffix}"
+			-DGMX_LIBS_SUFFIX="_mpi${suffix}"
+			)
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi" CC="mpicc" cmake-utils_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-utils_src_compile
+		# not 100% necessary for rel ebuilds as available from website
+		if use doc; then
+			BUILD_DIR="${WORKDIR}/${P}_${x}"\
+				cmake-utils_src_compile manual
+		fi
+		use mpi || continue
+		einfo "Compiling for ${x} precision with mpi"
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi"\
+			cmake-utils_src_compile
+	done
+}
+
+src_test() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}"\
+			cmake-utils_src_make check
+	done
+}
+
+src_install() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}" \
+			cmake-utils_src_install
+		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-utils_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  "http://dx.doi.org/10.1021/ct700301q"
+	einfo
+	readme.gentoo_print_elog
+}
diff --git a/sci-chemistry/gromacs/gromacs-4.6.9999.ebuild b/sci-chemistry/gromacs/gromacs-4.6.9999.ebuild
new file mode 100644
index 000000000000..e00c4f963859
--- /dev/null
+++ b/sci-chemistry/gromacs/gromacs-4.6.9999.ebuild
@@ -0,0 +1,263 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=6
+
+TEST_PV="4.6.6"
+MANUAL_PV="4.6.6"
+
+CMAKE_MAKEFILE_GENERATOR="ninja"
+
+inherit bash-completion-r1 cmake-utils cuda eutils multilib readme.gentoo-r1 toolchain-funcs
+
+if [[ $PV = *9999* ]]; then
+	EGIT_REPO_URI="git://git.gromacs.org/gromacs.git
+		https://gerrit.gromacs.org/gromacs.git
+		git://github.com/gromacs/gromacs.git
+		http://repo.or.cz/r/gromacs.git"
+	EGIT_BRANCH="release-4-6"
+	inherit git-r3
+	LIVE_DEPEND="doc? (
+		app-doc/doxygen
+		dev-texlive/texlive-latex
+		dev-texlive/texlive-latexextra
+		media-gfx/imagemagick
+		sys-apps/coreutils
+	)"
+	KEYWORDS=""
+else
+	SRC_URI="ftp://ftp.gromacs.org/pub/${PN}/${P}.tar.gz
+		doc? ( ftp://ftp.gromacs.org/pub/manual/manual-${MANUAL_PV}.pdf -> ${PN}-manual-${MANUAL_PV}.pdf )
+		test? ( http://gerrit.gromacs.org/download/regressiontests-${TEST_PV}.tar.gz )"
+	LIVE_DEPEND=""
+	KEYWORDS="~alpha ~amd64 ~arm ~ppc64 ~sparc ~x86 ~amd64-linux ~x86-linux ~x86-macos"
+fi
+
+ACCE_IUSE="cpu_flags_x86_sse2 cpu_flags_x86_sse4_1 cpu_flags_x86_fma4 cpu_flags_x86_avx"
+
+DESCRIPTION="The ultimate molecular dynamics simulation package"
+HOMEPAGE="http://www.gromacs.org/"
+
+# see COPYING for details
+# http://repo.or.cz/w/gromacs.git/blob/HEAD:/COPYING
+#        base,    vmd plugins, fftpack from numpy,  blas/lapck from netlib,        memtestG80 library,  mpi_thread lib
+LICENSE="LGPL-2.1 UoI-NCSA !mkl? ( !fftw? ( BSD ) !blas? ( BSD ) !lapack? ( BSD ) ) cuda? ( LGPL-3 ) threads? ( BSD )"
+SLOT="0/${PV}"
+IUSE="X blas cuda doc -double-precision +fftw gsl lapack mkl mpi +offensive openmp +single-precision test +threads zsh-completion ${ACCE_IUSE}"
+
+CDEPEND="
+	X? (
+		x11-libs/libX11
+		x11-libs/libSM
+		x11-libs/libICE
+		)
+	blas? ( virtual/blas )
+	cuda? ( >=dev-util/nvidia-cuda-toolkit-4.2.9-r1 )
+	fftw? ( sci-libs/fftw:3.0 )
+	gsl? ( sci-libs/gsl )
+	lapack? ( virtual/lapack )
+	mkl? ( sci-libs/mkl )
+	mpi? ( virtual/mpi )"
+DEPEND="${CDEPEND}
+	virtual/pkgconfig
+	${LIVE_DEPEND}
+	doc? ( app-doc/doxygen )"
+RDEPEND="${CDEPEND}"
+
+REQUIRED_USE="
+	|| ( single-precision double-precision )
+	cuda? ( single-precision )
+	mkl? ( !blas !fftw !lapack )"
+
+DOCS=( AUTHORS README )
+HTML_DOCS=( "${ED}"/usr/share/gromacs/html/ )
+
+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"
+}
+
+src_unpack() {
+	if [[ ${PV} != *9999 ]]; then
+		default
+	else
+		git-r3_src_unpack
+		if use doc; then
+			EGIT_REPO_URI="git://git.gromacs.org/manual.git" \
+			EGIT_BRANCH="release-4-6" EGIT_COMMIT="release-4-6" \
+			EGIT_CHECKOUT_DIR="${WORKDIR}/manual"\
+				git-r3_src_unpack
+		fi
+		if use test; then
+			EGIT_REPO_URI="git://git.gromacs.org/regressiontests.git" \
+			EGIT_BRANCH="release-4-6" EGIT_COMMIT="release-4-6" \
+			EGIT_CHECKOUT_DIR="${WORKDIR}/regressiontests"\
+				git-r3_src_unpack
+		fi
+	fi
+}
+
+src_prepare() {
+	#notes/todos
+	# -on apple: there is framework support
+
+	cmake-utils_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"
+}
+
+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"
+
+	#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
+
+	mycmakeargs_pre+=(
+		"${fft_opts[@]}"
+		-DGMX_X11=$(usex X)
+		-DGMX_EXTERNAL_BLAS=$(usex blas)
+		-DGMX_GSL=$(usex gsl)
+		-DGMX_EXTERNAL_LAPACK=$(usex lapack)
+		-DGMX_OPENMP=$(usex openmp)
+		-DGMX_COOL_QUOTES=$(usex offensive)
+		-DGMX_DEFAULT_SUFFIX=off
+		-DGMX_ACCELERATION="$acce"
+		-DGMXLIB="$(get_libdir)"
+		-DGMX_VMD_PLUGIN_PATH="${EPREFIX}/usr/$(get_libdir)/vmd/plugins/*/molfile/"
+		-DGMX_PREFIX_LIBMD=ON
+		-DGMX_X86_AVX_GCC_MASKLOAD_BUG=OFF
+		-DGMX_USE_GCC44_BUG_WORKAROUND=OFF
+		${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 cuda=( "-DGMX_GPU=OFF" )
+		[[ ${x} = "float" ]] && use cuda && \
+			cuda=( -DGMX_GPU=ON )
+		mycmakeargs=( ${mycmakeargs_pre[@]} ${p} -DGMX_MPI=OFF
+			-DGMX_THREAD_MPI=$(usex threads) "${cuda[@]}" -DGMX_OPENMM=OFF
+			"$(use test && echo -DREGRESSIONTEST_PATH="${WORKDIR}/${P}_${x}/tests")"
+			-DGMX_BINARY_SUFFIX="${suffix}" -DGMX_LIBS_SUFFIX="${suffix}" )
+		BUILD_DIR="${WORKDIR}/${P}_${x}" cmake-utils_src_configure
+		use mpi || continue
+		einfo "Configuring for ${x} precision with mpi"
+		mycmakeargs=( ${mycmakeargs_pre[@]} ${p} -DGMX_THREAD_MPI=OFF
+			-DGMX_MPI=ON ${cuda} -DGMX_OPENMM=OFF
+			-DGMX_BINARY_SUFFIX="_mpi${suffix}" -DGMX_LIBS_SUFFIX="_mpi${suffix}" )
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi" CC="mpicc" cmake-utils_src_configure
+	done
+}
+
+src_compile() {
+	for x in ${GMX_DIRS}; do
+		einfo "Compiling for ${x} precision"
+		BUILD_DIR="${WORKDIR}/${P}_${x}"\
+			cmake-utils_src_compile
+		use mpi || continue
+		einfo "Compiling for ${x} precision with mpi"
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi"\
+			cmake-utils_src_compile mdrun
+	done
+}
+
+src_test() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}"\
+			cmake-utils_src_make check
+	done
+}
+
+src_install() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}" \
+			cmake-utils_src_install
+		#manual can only be build after gromacs was installed once in image
+		if use doc && [[ $PV = *9999*  && ! -d ${WORKDIR}/manual_build ]]; then
+			mycmakeargs=( -DGMXBIN="${ED}"/usr/bin -DGMXSRC="${WORKDIR}/${P}" )
+			BUILD_DIR="${WORKDIR}"/manual_build \
+				CMAKE_USE_DIR="${WORKDIR}/manual" cmake-utils_src_configure
+			[[ ${CHOST} = *-darwin* ]] && \
+				export DYLD_LIBRARY_PATH="${DYLD_LIBRARY_PATH}${DYLD_LIBRARY_PATH:+:}${ED}/usr/$(get_libdir)"
+			BUILD_DIR="${WORKDIR}"/manual_build cmake-utils_src_make
+			[[ ${CHOST} = *-darwin* ]] && DYLD_LIBRARY_PATH="${ED}/usr/$(get_libdir)"
+			newdoc "${WORKDIR}"/manual_build/gromacs.pdf "${PN}-manual-${PV}.pdf"
+		fi
+		use mpi || continue
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi" \
+			DESTDIR="${D}" cmake-utils_src_make install-mdrun
+	done
+
+	use doc && [[ $PV != *9999* ]] && dodoc "${DISTDIR}/${PN}-manual-${MANUAL_PV}.pdf"
+	newbashcomp "${ED}"/usr/bin/completion.bash ${PN}
+	if use zsh-completion ; then
+		insinto /usr/share/zsh/site-functions
+		newins "${ED}"/usr/bin/completion.zsh _${PN}
+	fi
+	rm -f "${ED}"usr/bin/completion.*
+	rm -rf "${ED}"usr/share/gromacs/html
+	rm -f "${ED}"usr/bin/g_options*
+	rm -f "${ED}"usr/bin/GMXRC*
+
+	readme.gentoo_create_doc
+}
+
+pkg_postinst() {
+	einfo
+	einfo  "Please read and cite:"
+	einfo  "Gromacs 4, J. Chem. Theory Comput. 4, 435 (2008). "
+	einfo  "http://dx.doi.org/10.1021/ct700301q"
+	if use offensive; then
+		einfo
+		einfo  $(g_luck)
+		einfo  "For more Gromacs cool quotes (gcq) add g_luck to your .bashrc"
+	fi
+	einfo
+	readme.gentoo_print_elog
+}
diff --git a/sci-chemistry/gromacs/gromacs-5.0.9999.ebuild b/sci-chemistry/gromacs/gromacs-5.0.9999.ebuild
new file mode 100644
index 000000000000..5d1717e097c5
--- /dev/null
+++ b/sci-chemistry/gromacs/gromacs-5.0.9999.ebuild
@@ -0,0 +1,284 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=6
+
+CMAKE_MAKEFILE_GENERATOR="ninja"
+
+inherit bash-completion-r1 cmake-utils cuda eutils multilib readme.gentoo-r1 toolchain-funcs
+
+if [[ $PV = *9999* ]]; then
+	EGIT_REPO_URI="git://git.gromacs.org/gromacs.git
+		https://gerrit.gromacs.org/gromacs.git
+		git://github.com/gromacs/gromacs.git
+		http://repo.or.cz/r/gromacs.git"
+	EGIT_BRANCH="release-5-0"
+	inherit git-r3
+	KEYWORDS=""
+else
+	SRC_URI="ftp://ftp.gromacs.org/pub/${PN}/${PN}-${PV/_/-}.tar.gz
+		test? ( http://gerrit.gromacs.org/download/regressiontests-${PV}.tar.gz )"
+	KEYWORDS="~alpha ~amd64 ~arm ~ppc64 ~sparc ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x86-macos"
+fi
+
+ACCE_IUSE="cpu_flags_x86_sse2 cpu_flags_x86_sse4_1 cpu_flags_x86_fma4 cpu_flags_x86_avx cpu_flags_x86_avx2"
+
+DESCRIPTION="The ultimate molecular dynamics simulation package"
+HOMEPAGE="http://www.gromacs.org/"
+
+# see COPYING for details
+# http://repo.or.cz/w/gromacs.git/blob/HEAD:/COPYING
+#        base,    vmd plugins, fftpack from numpy,  blas/lapck from netlib,        memtestG80 library,  mpi_thread lib
+LICENSE="LGPL-2.1 UoI-NCSA !mkl? ( !fftw? ( BSD ) !blas? ( BSD ) !lapack? ( BSD ) ) cuda? ( LGPL-3 ) threads? ( BSD )"
+SLOT="0/${PV}"
+IUSE="X blas boost cuda +doc -double-precision +fftw lapack +make-symlinks mkl mpi +offensive openmp +single-precision test +threads +tng ${ACCE_IUSE}"
+
+CDEPEND="
+	X? (
+		x11-libs/libX11
+		x11-libs/libSM
+		x11-libs/libICE
+		)
+	blas? ( virtual/blas )
+	boost? ( >=dev-libs/boost-1.55 )
+	cuda? ( >=dev-util/nvidia-cuda-toolkit-4.2.9-r1 )
+	fftw? ( sci-libs/fftw:3.0 )
+	lapack? ( virtual/lapack )
+	mkl? ( sci-libs/mkl )
+	mpi? ( virtual/mpi )
+	"
+DEPEND="${CDEPEND}
+	virtual/pkgconfig
+	doc? (
+		app-doc/doxygen
+		dev-texlive/texlive-latex
+		dev-texlive/texlive-latexextra
+		media-gfx/imagemagick
+	)"
+RDEPEND="${CDEPEND}"
+
+REQUIRED_USE="
+	|| ( single-precision double-precision )
+	cuda? ( single-precision )
+	mkl? ( !blas !fftw !lapack )"
+
+DOCS=( AUTHORS README )
+
+if [[ ${PV} != *9999 ]]; then
+	S="${WORKDIR}/${PN}-${PV/_/-}"
+fi
+
+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"
+}
+
+src_unpack() {
+	if [[ ${PV} != *9999 ]]; then
+		default
+	else
+		git-r3_src_unpack
+		if use test; then
+			EGIT_REPO_URI="git://git.gromacs.org/regressiontests.git" \
+			EGIT_BRANCH="master" EGIT_COMMIT="master" \
+			EGIT_CHECKOUT_DIR="${WORKDIR}/regressiontests"\
+				git-r3_src_unpack
+		fi
+	fi
+}
+
+src_prepare() {
+	#notes/todos
+	# -on apple: there is framework support
+
+	cmake-utils_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"
+}
+
+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"
+
+	#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
+
+	mycmakeargs_pre+=(
+		"${fft_opts[@]}"
+		-DGMX_X11=$(usex X)
+		-DGMX_EXTERNAL_BLAS=$(usex blas)
+		-DGMX_EXTERNAL_LAPACK=$(usex lapack)
+		-DGMX_OPENMP=$(usex openmp)
+		-DGMX_COOL_QUOTES=$(usex offensive)
+		-DGMX_EXTERNAL_BOOST=$(usex boost)
+		-DGMX_USE_TNG=$(usex tng)
+		-DGMX_BUILD_MANUAL=$(usex doc)
+		-DGMX_SYMLINK_OLD_BINARY_NAMES=$(usex make-symlinks)
+		-DGMX_DEFAULT_SUFFIX=off
+		-DGMX_SIMD="$acce"
+		-DGMX_LIB_INSTALL_DIR="$(get_libdir)"
+		-DGMX_VMD_PLUGIN_PATH="${EPREFIX}/usr/$(get_libdir)/vmd/plugins/*/molfile/"
+		-DGMX_X86_AVX_GCC_MASKLOAD_BUG=OFF
+		-DGMX_USE_GCC44_BUG_WORKAROUND=OFF
+		-DBUILD_TESTING=OFF
+		-DGMX_BUILD_UNITTESTS=OFF
+		${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 cuda=( "-DGMX_GPU=OFF" )
+		[[ ${x} = "float" ]] && use cuda && \
+			cuda=( -DGMX_GPU=ON )
+		mycmakeargs=(
+			${mycmakeargs_pre[@]} ${p}
+			-DGMX_MPI=OFF
+			-DGMX_THREAD_MPI=$(usex threads)
+			"${cuda[@]}"
+			-DGMX_OPENMM=OFF
+			"$(use test && echo -DREGRESSIONTEST_PATH="${WORKDIR}/${P}_${x}/tests")"
+			-DGMX_BINARY_SUFFIX="${suffix}"
+			-DGMX_LIBS_SUFFIX="${suffix}"
+			)
+		BUILD_DIR="${WORKDIR}/${P}_${x}" cmake-utils_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 ${cuda}
+			-DGMX_OPENMM=OFF
+			-DGMX_BUILD_MDRUN_ONLY=ON
+			-DBUILD_SHARED_LIBS=OFF
+			-DGMX_BUILD_MANUAL=OFF
+			-DGMX_BINARY_SUFFIX="_mpi${suffix}"
+			-DGMX_LIBS_SUFFIX="_mpi${suffix}"
+			)
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi" CC="mpicc" cmake-utils_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-utils_src_compile
+		# generate bash completion, not 100% necessary for
+		# rel ebuilds as bundled
+		BUILD_DIR="${WORKDIR}/${P}_${x}"\
+			cmake-utils_src_compile completion
+		# not 100% necessary for rel ebuilds as available from website
+		if use doc; then
+			BUILD_DIR="${WORKDIR}/${P}_${x}"\
+				cmake-utils_src_compile manual
+		fi
+		use mpi || continue
+		einfo "Compiling for ${x} precision with mpi"
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi"\
+			cmake-utils_src_compile
+	done
+}
+
+src_test() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}"\
+			cmake-utils_src_make check
+	done
+}
+
+src_install() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}" \
+			cmake-utils_src_install
+		if use doc; then
+			newdoc "${WORKDIR}/${P}_${x}"/docs/manual/gromacs.pdf "${PN}-manual-${PV}.pdf"
+		fi
+		#release ebuild does this automatically
+		if [[ $PV = *9999* ]]; then
+			cp "${WORKDIR}/${P}_${x}"/src/programs/completion/gmx-completion.bash "${ED}/usr/bin" || die
+			echo "complete -o nospace -F _gmx_compl gmx" > "${ED}/usr/bin/gmx-completion-gmx.bash" || die
+		fi
+		use mpi || continue
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi" \
+			cmake-utils_src_install
+	done
+
+	if use tng; then
+		insinto /usr/include/tng
+		doins src/external/tng_io/include/tng/*h
+	fi
+	# drop unneeded stuff
+	rm "${ED}"usr/bin/GMXRC* || die
+	#concatenate all gmx-completion*, starting with gmx-completion.bash (fct defs)
+	#little hacckery as some gmx-completion* newlines ,so cat won't work
+	for x in "${ED}"usr/bin/gmx-completion{,?*}.bash ; do
+		echo $(<${x})
+	done > "${T}"/gmx-bashcomp || die
+	newbashcomp "${T}"/gmx-bashcomp gmx
+	bashcomp_alias gmx mdrun
+	rm "${ED}"usr/bin/gmx-completion{,?*}.bash || die
+	if use double-precision && use single-precision; then
+		bashcomp_alias gmx gmx_d
+		bashcomp_alias gmx mdrun_d
+	fi
+	readme.gentoo_create_doc
+}
+
+pkg_postinst() {
+	einfo
+	einfo  "Please read and cite:"
+	einfo  "Gromacs 4, J. Chem. Theory Comput. 4, 435 (2008). "
+	einfo  "http://dx.doi.org/10.1021/ct700301q"
+	einfo
+	readme.gentoo_print_elog
+}
diff --git a/sci-chemistry/gromacs/gromacs-5.1.9999.ebuild b/sci-chemistry/gromacs/gromacs-5.1.9999.ebuild
new file mode 100644
index 000000000000..9711c228ecb5
--- /dev/null
+++ b/sci-chemistry/gromacs/gromacs-5.1.9999.ebuild
@@ -0,0 +1,269 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=6
+
+CMAKE_MAKEFILE_GENERATOR="ninja"
+
+inherit bash-completion-r1 cmake-utils cuda eutils multilib readme.gentoo-r1 toolchain-funcs
+
+if [[ $PV = *9999* ]]; then
+	EGIT_REPO_URI="git://git.gromacs.org/gromacs.git
+		https://gerrit.gromacs.org/gromacs.git
+		git://github.com/gromacs/gromacs.git
+		http://repo.or.cz/r/gromacs.git"
+	[[ $PV = 9999 ]] && EGIT_BRANCH="master" || EGIT_BRANCH="release-${PV:0:1}-${PV:2:1}"
+	inherit git-r3
+	KEYWORDS=""
+else
+	SRC_URI="ftp://ftp.gromacs.org/pub/${PN}/${PN}-${PV/_/-}.tar.gz
+		test? ( http://gerrit.gromacs.org/download/regressiontests-${PV}.tar.gz )"
+	KEYWORDS="~alpha ~amd64 ~arm ~ppc64 ~sparc ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x86-macos"
+fi
+
+ACCE_IUSE="cpu_flags_x86_sse2 cpu_flags_x86_sse4_1 cpu_flags_x86_fma4 cpu_flags_x86_avx cpu_flags_x86_avx2"
+
+DESCRIPTION="The ultimate molecular dynamics simulation package"
+HOMEPAGE="http://www.gromacs.org/"
+
+# see COPYING for details
+# http://repo.or.cz/w/gromacs.git/blob/HEAD:/COPYING
+#        base,    vmd plugins, fftpack from numpy,  blas/lapck from netlib,        memtestG80 library,  mpi_thread lib
+LICENSE="LGPL-2.1 UoI-NCSA !mkl? ( !fftw? ( BSD ) !blas? ( BSD ) !lapack? ( BSD ) ) cuda? ( LGPL-3 ) threads? ( BSD )"
+SLOT="0/${PV}"
+IUSE="X blas boost cuda +doc -double-precision +fftw lapack mkl mpi +offensive openmp +single-precision test +threads +tng ${ACCE_IUSE}"
+
+CDEPEND="
+	X? (
+		x11-libs/libX11
+		x11-libs/libSM
+		x11-libs/libICE
+		)
+	blas? ( virtual/blas )
+	boost? ( >=dev-libs/boost-1.55 )
+	cuda? ( >=dev-util/nvidia-cuda-toolkit-4.2.9-r1 )
+	fftw? ( sci-libs/fftw:3.0 )
+	lapack? ( virtual/lapack )
+	mkl? ( sci-libs/mkl )
+	mpi? ( virtual/mpi )
+	"
+DEPEND="${CDEPEND}
+	virtual/pkgconfig
+	doc? (
+		app-doc/doxygen
+		dev-texlive/texlive-latex
+		dev-texlive/texlive-latexextra
+		media-gfx/imagemagick
+	)"
+RDEPEND="${CDEPEND}"
+
+REQUIRED_USE="
+	|| ( single-precision double-precision )
+	cuda? ( single-precision )
+	mkl? ( !blas !fftw !lapack )"
+
+DOCS=( AUTHORS README )
+
+if [[ ${PV} != *9999 ]]; then
+	S="${WORKDIR}/${PN}-${PV/_/-}"
+fi
+
+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"
+}
+
+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
+
+	cmake-utils_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"
+}
+
+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"
+
+	#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
+
+	mycmakeargs_pre+=(
+		"${fft_opts[@]}"
+		-DGMX_X11=$(usex X)
+		-DGMX_EXTERNAL_BLAS=$(usex blas)
+		-DGMX_EXTERNAL_LAPACK=$(usex lapack)
+		-DGMX_OPENMP=$(usex openmp)
+		-DGMX_COOL_QUOTES=$(usex offensive)
+		-DGMX_EXTERNAL_BOOST=$(usex boost)
+		-DGMX_USE_TNG=$(usex tng)
+		-DGMX_BUILD_MANUAL=$(usex doc)
+		-DGMX_DEFAULT_SUFFIX=off
+		-DGMX_SIMD="$acce"
+		-DGMX_LIB_INSTALL_DIR="$(get_libdir)"
+		-DGMX_VMD_PLUGIN_PATH="${EPREFIX}/usr/$(get_libdir)/vmd/plugins/*/molfile/"
+		-DGMX_X86_AVX_GCC_MASKLOAD_BUG=OFF
+		-DGMX_USE_GCC44_BUG_WORKAROUND=OFF
+		-DBUILD_TESTING=OFF
+		-DGMX_BUILD_UNITTESTS=OFF
+		${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 cuda=( "-DGMX_GPU=OFF" )
+		[[ ${x} = "float" ]] && use cuda && \
+			cuda=( -DGMX_GPU=ON )
+		mycmakeargs=(
+			${mycmakeargs_pre[@]} ${p}
+			-DGMX_MPI=OFF
+			-DGMX_THREAD_MPI=$(usex threads)
+			"${cuda[@]}"
+			-DGMX_OPENMM=OFF
+			"$(use test && echo -DREGRESSIONTEST_PATH="${WORKDIR}/${P}_${x}/tests")"
+			-DGMX_BINARY_SUFFIX="${suffix}"
+			-DGMX_LIBS_SUFFIX="${suffix}"
+			)
+		BUILD_DIR="${WORKDIR}/${P}_${x}" cmake-utils_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 ${cuda}
+			-DGMX_OPENMM=OFF
+			-DGMX_BUILD_MDRUN_ONLY=ON
+			-DBUILD_SHARED_LIBS=OFF
+			-DGMX_BUILD_MANUAL=OFF
+			-DGMX_BINARY_SUFFIX="_mpi${suffix}"
+			-DGMX_LIBS_SUFFIX="_mpi${suffix}"
+			)
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi" CC="mpicc" cmake-utils_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-utils_src_compile
+		# not 100% necessary for rel ebuilds as available from website
+		if use doc; then
+			BUILD_DIR="${WORKDIR}/${P}_${x}"\
+				cmake-utils_src_compile manual
+		fi
+		use mpi || continue
+		einfo "Compiling for ${x} precision with mpi"
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi"\
+			cmake-utils_src_compile
+	done
+}
+
+src_test() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}"\
+			cmake-utils_src_make check
+	done
+}
+
+src_install() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}" \
+			cmake-utils_src_install
+		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-utils_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  "http://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
new file mode 100644
index 000000000000..1ca034301050
--- /dev/null
+++ b/sci-chemistry/gromacs/gromacs-9999.ebuild
@@ -0,0 +1,266 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=6
+
+CMAKE_MAKEFILE_GENERATOR="ninja"
+
+inherit bash-completion-r1 cmake-utils cuda eutils multilib readme.gentoo-r1 toolchain-funcs
+
+if [[ $PV = *9999* ]]; then
+	EGIT_REPO_URI="git://git.gromacs.org/gromacs.git
+		https://gerrit.gromacs.org/gromacs.git
+		git://github.com/gromacs/gromacs.git
+		http://repo.or.cz/r/gromacs.git"
+	[[ $PV = 9999 ]] && EGIT_BRANCH="master" || EGIT_BRANCH="release-${PV:0:1}-${PV:2:1}"
+	inherit git-r3
+	KEYWORDS=""
+else
+	SRC_URI="ftp://ftp.gromacs.org/pub/${PN}/${PN}-${PV/_/-}.tar.gz
+		test? ( http://gerrit.gromacs.org/download/regressiontests-${PV/_/-}.tar.gz )"
+	KEYWORDS="~alpha ~amd64 ~arm ~ppc64 ~sparc ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x86-macos"
+fi
+
+ACCE_IUSE="cpu_flags_x86_sse2 cpu_flags_x86_sse4_1 cpu_flags_x86_fma4 cpu_flags_x86_avx cpu_flags_x86_avx2"
+
+DESCRIPTION="The ultimate molecular dynamics simulation package"
+HOMEPAGE="http://www.gromacs.org/"
+
+# see COPYING for details
+# http://repo.or.cz/w/gromacs.git/blob/HEAD:/COPYING
+#        base,    vmd plugins, fftpack from numpy,  blas/lapck from netlib,        memtestG80 library,  mpi_thread lib
+LICENSE="LGPL-2.1 UoI-NCSA !mkl? ( !fftw? ( BSD ) !blas? ( BSD ) !lapack? ( BSD ) ) cuda? ( LGPL-3 ) threads? ( BSD )"
+SLOT="0/${PV}"
+IUSE="X blas cuda +doc -double-precision +fftw +hwloc lapack mkl mpi +offensive openmp +single-precision test +threads +tng ${ACCE_IUSE}"
+
+CDEPEND="
+	X? (
+		x11-libs/libX11
+		x11-libs/libSM
+		x11-libs/libICE
+		)
+	blas? ( virtual/blas )
+	cuda? ( >=dev-util/nvidia-cuda-toolkit-4.2.9-r1 )
+	fftw? ( sci-libs/fftw:3.0 )
+	hwloc? ( sys-apps/hwloc )
+	lapack? ( virtual/lapack )
+	mkl? ( sci-libs/mkl )
+	mpi? ( virtual/mpi )
+	"
+DEPEND="${CDEPEND}
+	virtual/pkgconfig
+	doc? (
+		app-doc/doxygen
+		dev-texlive/texlive-latex
+		dev-texlive/texlive-latexextra
+		media-gfx/imagemagick
+	)"
+RDEPEND="${CDEPEND}"
+
+REQUIRED_USE="
+	|| ( single-precision double-precision )
+	cuda? ( single-precision )
+	mkl? ( !blas !fftw !lapack )"
+
+DOCS=( AUTHORS README )
+
+if [[ ${PV} != *9999 ]]; then
+	S="${WORKDIR}/${PN}-${PV/_/-}"
+fi
+
+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"
+}
+
+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
+
+	cmake-utils_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"
+}
+
+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"
+
+	#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
+
+	mycmakeargs_pre+=(
+		"${fft_opts[@]}"
+		-DGMX_X11=$(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_LIB_INSTALL_DIR="$(get_libdir)"
+		-DGMX_VMD_PLUGIN_PATH="${EPREFIX}/usr/$(get_libdir)/vmd/plugins/*/molfile/"
+		-DBUILD_TESTING=OFF
+		-DGMX_BUILD_UNITTESTS=OFF
+		${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 cuda=( "-DGMX_GPU=OFF" )
+		[[ ${x} = "float" ]] && use cuda && \
+			cuda=( -DGMX_GPU=ON )
+		mycmakeargs=(
+			${mycmakeargs_pre[@]} ${p}
+			-DGMX_MPI=OFF
+			-DGMX_THREAD_MPI=$(usex threads)
+			"${cuda[@]}"
+			"$(use test && echo -DREGRESSIONTEST_PATH="${WORKDIR}/${P}_${x}/tests")"
+			-DGMX_BINARY_SUFFIX="${suffix}"
+			-DGMX_LIBS_SUFFIX="${suffix}"
+			)
+		BUILD_DIR="${WORKDIR}/${P}_${x}" cmake-utils_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 ${cuda}
+			-DGMX_OPENMM=OFF
+			-DGMX_BUILD_MDRUN_ONLY=ON
+			-DBUILD_SHARED_LIBS=OFF
+			-DGMX_BUILD_MANUAL=OFF
+			-DGMX_BINARY_SUFFIX="_mpi${suffix}"
+			-DGMX_LIBS_SUFFIX="_mpi${suffix}"
+			)
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi" CC="mpicc" cmake-utils_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-utils_src_compile
+		# not 100% necessary for rel ebuilds as available from website
+		if use doc; then
+			BUILD_DIR="${WORKDIR}/${P}_${x}"\
+				cmake-utils_src_compile manual
+		fi
+		use mpi || continue
+		einfo "Compiling for ${x} precision with mpi"
+		BUILD_DIR="${WORKDIR}/${P}_${x}_mpi"\
+			cmake-utils_src_compile
+	done
+}
+
+src_test() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}"\
+			cmake-utils_src_make check
+	done
+}
+
+src_install() {
+	for x in ${GMX_DIRS}; do
+		BUILD_DIR="${WORKDIR}/${P}_${x}" \
+			cmake-utils_src_install
+		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-utils_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  "http://dx.doi.org/10.1021/ct700301q"
+	einfo
+	readme.gentoo_print_elog
+}
diff --git a/sci-chemistry/gromacs/metadata.xml b/sci-chemistry/gromacs/metadata.xml
index 0c7b1076f207..e98cd51fc52a 100644
--- a/sci-chemistry/gromacs/metadata.xml
+++ b/sci-chemistry/gromacs/metadata.xml
@@ -17,7 +17,8 @@
     <flag name="cuda">Enable cuda non-bonded kernels</flag>
     <flag name="double-precision">More precise calculations at the expense of speed</flag>
     <flag name="single-precision">Single precision version of gromacs (default)</flag>
-    <flag name="boost">Enable external boost library</flag>
+	<flag name="boost">Enable external boost library</flag>
+	<flag name="hwloc">Enable HWLoc lib support</flag>
     <flag name="tng">Enable new trajectory format - tng</flag>
     <flag name="make-symlinks">Create symbolic links for pre-5.0 binary names</flag>
     <!-- acceleration optimization flags -->