bring back sse2 kernels

Package-Manager: portage-2.2.0_alpha81/cvs/Linux i686

5 files changed, 365 insertions, 10 deletions

diff --git a/sci-chemistry/gromacs/ChangeLog b/sci-chemistry/gromacs/ChangeLog
index e033b63f0754..9ea476e5da21 100644
--- a/sci-chemistry/gromacs/ChangeLog
+++ b/sci-chemistry/gromacs/ChangeLog
@@ -1,6 +1,13 @@
 # ChangeLog for sci-chemistry/gromacs
 # Copyright 1999-2011 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/sci-chemistry/gromacs/ChangeLog,v 1.98 2011/12/14 16:45:32 ago Exp $
+# $Header: /var/cvsroot/gentoo-x86/sci-chemistry/gromacs/ChangeLog,v 1.99 2011/12/19 20:56:27 ottxor Exp $
+
+*gromacs-4.5.5-r1 (19 Dec 2011)
+
+  19 Dec 2011; Christoph Junghans <ottxor@gentoo.org> +gromacs-4.5.5-r1.ebuild,
+  +files/gromacs-4.5.5-cmake-cpp-asm.patch,
+  +files/gromacs-4.5.5-enable-see.patch:
+  bring back sse2 kernels
 
   14 Dec 2011; Agostino Sarubbo <ago@gentoo.org> gromacs-4.5.5.ebuild:
   Stable for AMD64, wrt bug #391147
diff --git a/sci-chemistry/gromacs/Manifest b/sci-chemistry/gromacs/Manifest
index b3468367d179..af29d6210767 100644
--- a/sci-chemistry/gromacs/Manifest
+++ b/sci-chemistry/gromacs/Manifest
@@ -1,6 +1,8 @@
 -----BEGIN PGP SIGNED MESSAGE-----
-Hash: SHA512
+Hash: SHA1
 
+AUX gromacs-4.5.5-cmake-cpp-asm.patch 2051 RMD160 dbb99d916aa7826de84e4621e7e6728759f0484f SHA1 55c0bf200891045680e5aed897386b18f37c0283 SHA256 b83f9252187caa3647a44166004191454257d8d187f2a3fb883824814b5379d4
+AUX gromacs-4.5.5-enable-see.patch 1916 RMD160 7867c9a9ea0720f0c0bb7f52021e0c417464044d SHA1 05fd406d35001d196edee3628397ffe4b0b32e9c SHA256 bd4cbe8b46de33c0a62cd7234265b3e27c6363959f4b97aad447ef18c4e16bb3
 DIST 0001-Make-stack-non-executable-for-GAS-assembly.patch.gz 3569527 RMD160 862efb96bee960f4bab4ce726d2524529bddde81 SHA1 a1d01348b421a1209d25d558ba6e0d8762c595f0 SHA256 17a948d221b67faeaf635a0b5ee9564067bc261e9279294c0c7c58ae9580ae5f
 DIST 0002-Make-stack-non-executable-for-ATT-assembly.patch.gz 3868244 RMD160 1b98ad7a1216b78aaa04f6f83a04d8be94cf234c SHA1 bc2a2ab012e42189710d6a38798add01e7813003 SHA256 af12b3632aaf4e3d0c49ce99e0a4ed5de61c40d293bc592b70f89e08738f2581
 DIST gmxtest-4.0.4.tgz 14845017 RMD160 c7c583415438bdef4c9996da9064254e9460cf16 SHA1 998179aa2bfbc4f80514f10ed774762f85c854c3 SHA256 6a7f787f4bb7cbecb688115ff0854a5ffd2ef33487d7bce4b031e63848b6f361
@@ -9,17 +11,18 @@ DIST gromacs-4.5.5.tar.gz 10398178 RMD160 a3d40c3ac6ec9ee3e4607bd35afca1dd471515
 DIST gromacs-manual-4.5.4.pdf 2463242 RMD160 309a1d9bc5f4821076d53f668c36f1c6bfc1714f SHA1 58c0261308212af29fa0c4f4a6d1b81da6d84766 SHA256 dc14504a7072b61e7aa576c48f04df03356824f3a9d9e744dfaf51529ab46252
 EBUILD gromacs-4.5.4-r1.ebuild 8120 RMD160 111791f7aff880a5622e622e41cd7a10efeb3a89 SHA1 84e6a5e0a57a8eabace6a35b7ce271f355721d37 SHA256 a26cacd6a0b51ea14ddfe10758afda7719f194c5562b05fa0f4ca18a445277c6
 EBUILD gromacs-4.5.4-r2.ebuild 7743 RMD160 611705b9c01b331991d60736cd8d53592bc94024 SHA1 f3f2d63cfe0178d2aee329429e65dcfa7c1c8683 SHA256 cd77028e836682a9f01319db5d4a57fc3b167295b1f45b4ce29f8f9355f403c8
+EBUILD gromacs-4.5.5-r1.ebuild 7945 RMD160 17189eb90e5e83f913a9e8b9a40be508036eef88 SHA1 7c0bcf827ea2e393cf24d06a46e8884f768b5577 SHA256 d5547fe53678f2d2c2b07b2bb5dfd1b3d165f8e50f736f9df2deea306395e622
 EBUILD gromacs-4.5.5.ebuild 7738 RMD160 69ff972202f5e921bdaa02375592f3ade9854d57 SHA1 be04c2efb384893a08c17bcd93ca19d489c1572a SHA256 c25c49db5d22cbb6be6a2719e71f4714b93318b17a1c150986cd39e2ebe46a25
-MISC ChangeLog 16997 RMD160 9a7e21253263e67f5c5a3222fe4729253aa94f57 SHA1 d2eebb9219b0ebefe7834c4c45e13d988974430d SHA256 f5f7f7c87ee8c1ae1140484d21d04d0a8c48102678983ce979f570fcca37a708
+MISC ChangeLog 17225 RMD160 5920ec20279c7673ad9e204b0fa5c7920498a9cc SHA1 569a0650bc60c22916ad684a01f56c01835fe577 SHA256 1e51a95ebfc21139f37326cee363cf8336421264cd501d95b61f75297fcd21c8
 MISC metadata.xml 516 RMD160 64f12e7dea05c39ad349ad44408cdaa787e9129f SHA1 9eeff9fd2cdc813796f2b5f605fd3ed9e559e3a6 SHA256 25d77da0c4b789ade2778652a4fbea6aff17ce177664ce1750684b636eebbc61
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.17 (GNU/Linux)
 
-iQEcBAEBCgAGBQJO6NLLAAoJEOTDgjZ80txdQU0H/1KJErc4NcFydQhrEi56Tmnf
-kIwCRHwnmtgm7DFQctbmhRlZFAVz030/jHjX+Q93OIVDCtOSr0JqqBROFl6eXOUI
-SI8Lq1aX3cAfKmmFgeiy6Mc9nr9YkcLq2RAKqwEJ0cgoz92YDKPnmxMBIz6fQ1Ug
-S6mAlo04UIfdwU1NErm9hN+t+2EIOyoicVTA36+5DxP7Q/fWtqWdbePdwYl2zSuN
-6RVB/S7nXFsjaeiB2LevYZHChkr12ds4QmKWO7fHTPuTNUavG9OxlTIgAW4UWHQv
-0ptG0GFfZrDgaAp7DkeIe2hqImxKDta5eNd8md8oFaBtiHSF9R605stIeM5v8k8=
-=vTSE
+iQEcBAEBAgAGBQJO76UBAAoJEOeBhlrCAAWGbf4H/RaU8fQ2tU/+Ey/VUpHwy0eF
+27zYXRPbr/vHQtPKKegdUwNJqzagqVi+AHYq4PmamvW9IYUKY7UsTtLGzIPqVUVE
+e5trCMrciL/6ho/M+DhMSt9dF/DM9pfKykWY6tl5xGM4aNJlpk2N69GvhE2ZvZcz
+2dE+pUMguSoCFfoJTVa4cvElwRUsmmQ5hG+0fjAlj0XFyXqwL7+fY8BMS4v9nM8i
+YCClQuV2fvvhDU89M76ckjipsp+1PSfSgmFkkv0WfCLBKPVyxdxZYw2E+b1m8kY9
+Coj2B285AAsQWD+ePgQjfvF0IonF3lzA1bvFsyHROi4evvDIAbeqz6PizOgvwu4=
+=UaqJ
 -----END PGP SIGNATURE-----
diff --git a/sci-chemistry/gromacs/files/gromacs-4.5.5-cmake-cpp-asm.patch b/sci-chemistry/gromacs/files/gromacs-4.5.5-cmake-cpp-asm.patch
new file mode 100644
index 000000000000..71b7a2ff7b4a
--- /dev/null
+++ b/sci-chemistry/gromacs/files/gromacs-4.5.5-cmake-cpp-asm.patch
@@ -0,0 +1,46 @@
+diff --git a/cmake/CMakeASM-ATTInformation.cmake b/cmake/CMakeASM-ATTInformation.cmake
+new file mode 100644
+index 0000000..05e9457
+--- /dev/null
++++ b/cmake/CMakeASM-ATTInformation.cmake
+@@ -0,0 +1,13 @@
++
++# This a modified version of CMakeASMInformation.cmake coming with cmake 2.8.6, which
++# supports .S files
++
++# support for AT&T syntax assemblers, e.g. GNU as
++
++SET(ASM_DIALECT "-ATT")
++SET(CMAKE_ASM${ASM_DIALECT}_SOURCE_FILE_EXTENSIONS S;s;asm)
++
++SET(CMAKE_ASM${ASM_DIALECT}_COMPILE_OBJECT "<CMAKE_ASM${ASM_DIALECT}_COMPILER> <FLAGS> -o <OBJECT> <SOURCE>")
++
++INCLUDE(CMakeASMInformation)
++SET(ASM_DIALECT)
+diff --git a/src/gmxlib/CMakeLists.txt b/src/gmxlib/CMakeLists.txt
+index 021ed19..c3e7b79 100644
+--- a/src/gmxlib/CMakeLists.txt
++++ b/src/gmxlib/CMakeLists.txt
+@@ -47,18 +47,18 @@ endif()
+ if(GMX_IA32_ASM)
+   file(GLOB GMX_SSEKERNEL_C_SRC   nonbonded/nb_kernel_ia32_${SSETYPE}/*.c)
+   if(GMX_ASM_USEASM-NASM)
+-    file(GLOB GMX_SSEKERNEL_ASM_SRC nonbonded/nb_kernel_ia32_${SSETYPE}/*intel_syntax*.s)    
++    file(GLOB GMX_SSEKERNEL_ASM_SRC nonbonded/nb_kernel_ia32_${SSETYPE}/*intel_syntax*.S)    
+   else()
+-    file(GLOB GMX_SSEKERNEL_ASM_SRC nonbonded/nb_kernel_ia32_${SSETYPE}/*${SSETYPE}.s nonbonded/nb_kernel_ia32_${SSETYPE}/*asm.s)
++    file(GLOB GMX_SSEKERNEL_ASM_SRC nonbonded/nb_kernel_ia32_${SSETYPE}/*${SSETYPE}.S nonbonded/nb_kernel_ia32_${SSETYPE}/*asm.S)
+   endif()
+ endif(GMX_IA32_ASM)
+ 
+ if(GMX_X86_64_ASM)
+   file(GLOB GMX_SSEKERNEL_C_SRC   nonbonded/nb_kernel_x86_64_${SSETYPE}/*.c)
+   if(GMX_ASM_USEASM-NASM)
+-    file(GLOB GMX_SSEKERNEL_ASM_SRC nonbonded/nb_kernel_x86_64_${SSETYPE}/*intel_syntax*.s)
++    file(GLOB GMX_SSEKERNEL_ASM_SRC nonbonded/nb_kernel_x86_64_${SSETYPE}/*intel_syntax*.S)
+   else()
+-    file(GLOB GMX_SSEKERNEL_ASM_SRC nonbonded/nb_kernel_x86_64_${SSETYPE}/*${SSETYPE}.s nonbonded/nb_kernel_x86_64_${SSETYPE}/*asm.s)
++    file(GLOB GMX_SSEKERNEL_ASM_SRC nonbonded/nb_kernel_x86_64_${SSETYPE}/*${SSETYPE}.S nonbonded/nb_kernel_x86_64_${SSETYPE}/*asm.S)
+   endif()
+ endif(GMX_X86_64_ASM)
+ 
diff --git a/sci-chemistry/gromacs/files/gromacs-4.5.5-enable-see.patch b/sci-chemistry/gromacs/files/gromacs-4.5.5-enable-see.patch
new file mode 100644
index 000000000000..e00bb8f91447
--- /dev/null
+++ b/sci-chemistry/gromacs/files/gromacs-4.5.5-enable-see.patch
@@ -0,0 +1,48 @@
+See https://gerrit.gromacs.org/376
+
+From 3d2c02960f9f791fc7d95549b686c8b23651613b Mon Sep 17 00:00:00 2001
+From: Christoph Junghans <junghans@votca.org>
+Date: Mon, 19 Dec 2011 11:23:25 -0700
+Subject: [PATCH] Set GMX_*_ASM true if GMX_ACCELERATION != auto
+
+In case GMX_ACCELERATION was set to SSE manually (like in Gentoo Linux)
+GMX_*_ASM would never be set (false), so sse kernel will not be build.
+
+Change-Id: Icf04707c6174a0182fe4472536b568e1d2d91166
+---
+ CMakeLists.txt |   12 ++++++------
+ 1 files changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 25f22b7..b56aad1 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -542,12 +542,6 @@ if (${GMX_ACCELERATION} STREQUAL "auto" AND NOT GMX_OPENMM)
+ 
+     set(GMX_ACCELERATION "SSE" CACHE STRING "Accelerated kernels. Pick one of: auto, none, SSE, BlueGene, Power6, ia64, altivec, fortran" FORCE)
+     
+-    if (GMX_64_BIT)
+-      set(GMX_X86_64_ASM ON CACHE BOOL "Add SSE assembly files for x86_64" FORCE)
+-    else (GMX_64_BIT)
+-      set(GMX_IA32_ASM ON CACHE BOOL "Add SSE assembly files for i386" FORCE)
+-    endif (GMX_64_BIT)
+-
+     # Determine the assembler/compiler to use
+   else()
+     set(GMX_ACCELERATION "none" CACHE STRING "Accelerated kernels. Pick one of: auto, none, SSE, BlueGene, Power6, ia64, altivec, fortran" FORCE)
+@@ -566,6 +560,12 @@ string(TOUPPER ${GMX_ACCELERATION} ${GMX_ACCELERATION})
+ if(${GMX_ACCELERATION} STREQUAL "NONE")
+   # nothing to do
+ elseif(${GMX_ACCELERATION} STREQUAL "SSE")
++    
++    if (GMX_64_BIT)
++      set(GMX_X86_64_ASM ON CACHE BOOL "Add SSE assembly files for x86_64" FORCE)
++    else (GMX_64_BIT)
++      set(GMX_IA32_ASM ON CACHE BOOL "Add SSE assembly files for i386" FORCE)
++    endif (GMX_64_BIT)
+ 
+     if(CMAKE_GENERATOR MATCHES "Visual Studio")
+       option(GMX_ASM_USEASM-NASM "Use Nasm for assembly instead of compiler (necessary on windows)" ON)
+-- 
+1.7.8
+
diff --git a/sci-chemistry/gromacs/gromacs-4.5.5-r1.ebuild b/sci-chemistry/gromacs/gromacs-4.5.5-r1.ebuild
new file mode 100644
index 000000000000..3613677093d5
--- /dev/null
+++ b/sci-chemistry/gromacs/gromacs-4.5.5-r1.ebuild
@@ -0,0 +1,251 @@
+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sci-chemistry/gromacs/gromacs-4.5.5-r1.ebuild,v 1.1 2011/12/19 20:56:27 ottxor Exp $
+
+EAPI="4"
+
+TEST_PV="4.0.4"
+MANUAL_PV="4.5.4"
+
+#to find external blas/lapack
+CMAKE_MIN_VERSION="2.8.5-r2"
+
+inherit bash-completion-r1 cmake-utils eutils fortran-2 multilib toolchain-funcs
+
+if [ "${PV%9999}" != "${PV}" ]; then
+	EGIT_REPO_URI="git://git.gromacs.org/gromacs"
+	EGIT_BRANCH="release-4-5-patches"
+	inherit git-2
+else
+	SRC_URI="${SRC_URI} ftp://ftp.gromacs.org/pub/${PN}/${P}.tar.gz"
+fi
+
+DESCRIPTION="The ultimate molecular dynamics simulation package"
+HOMEPAGE="http://www.gromacs.org/"
+SRC_URI="${SRC_URI}
+		sse2? ( http://dev.gentoo.org/~alexxy/gromacs/0001-Make-stack-non-executable-for-GAS-assembly.patch.gz )
+		sse2? ( http://dev.gentoo.org/~alexxy/gromacs/0002-Make-stack-non-executable-for-ATT-assembly.patch.gz )
+		doc? ( ftp://ftp.gromacs.org/pub/manual/manual-${MANUAL_PV}.pdf -> gromacs-manual-${MANUAL_PV}.pdf )
+		test? ( ftp://ftp.gromacs.org/pub/tests/gmxtest-${TEST_PV}.tgz )"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~ppc64 ~sparc ~x86 ~amd64-linux ~x86-linux"
+IUSE="X altivec blas doc -double-precision +fftw fkernels gsl lapack
+mpi +single-precision sse2 test +threads xml zsh-completion"
+REQUIRED_USE="fkernels? ( !threads )"
+
+CDEPEND="
+	X? (
+		x11-libs/libX11
+		x11-libs/libSM
+		x11-libs/libICE
+		)
+	blas? ( virtual/blas )
+	fftw? ( sci-libs/fftw:3.0 )
+	fkernels? ( virtual/fortran )
+	gsl? ( sci-libs/gsl )
+	lapack? ( virtual/lapack )
+	mpi? ( virtual/mpi )
+	xml? ( dev-libs/libxml2:2 )"
+DEPEND="${CDEPEND}
+	dev-util/pkgconfig"
+RDEPEND="${CDEPEND}
+	app-shells/tcsh"
+
+RESTRICT="test"
+
+pkg_setup() {
+	use fkernels && fortran-2_pkg_setup
+}
+
+src_prepare() {
+	#add user patches from /etc/portage/patches/sci-chemistry/gromacs
+	epatch_user
+
+	if use mpi && use threads; then
+		elog "mdrun uses only threads OR mpi, and gromacs favours the"
+		elog "use of mpi over threads, so a mpi-version of mdrun will"
+		elog "be compiled. If you want to run mdrun on shared memory"
+		elog "machines only, you can safely disable mpi"
+	fi
+
+	if use sse2; then
+		# Add patches for non-exec stack - qa issue
+		epatch "${WORKDIR}/0001-Make-stack-non-executable-for-GAS-assembly.patch"
+		epatch "${WORKDIR}/0002-Make-stack-non-executable-for-ATT-assembly.patch"
+		#alexxy patches, renamve kernel from .s to .S
+		epatch "${FILESDIR}/${P}-cmake-cpp-asm.patch"
+
+		epatch "${FILESDIR}/${P}-enable-see.patch"
+	fi
+
+	GMX_DIRS=""
+	use single-precision && GMX_DIRS+=" float"
+	use double-precision && GMX_DIRS+=" double"
+	#if neither single-precision nor double-precision is enabled
+	#build at least default (single)
+	[ -z "$GMX_DIRS" ] && GMX_DIRS+=" float"
+
+	for x in ${GMX_DIRS}; do
+		mkdir -p "${WORKDIR}/${P}_${x}" || die
+		use test && cp -r "${WORKDIR}"/gmxtest "${WORKDIR}/${P}_${x}"
+	done
+}
+
+src_configure() {
+	local mycmakeargs_pre=( )
+	#from gromacs configure
+	if use fftw; then
+		mycmakeargs_pre+=("-DGMX_FFT_LIBRARY=fftw3")
+	else
+		mycmakeargs_pre+=("-DGMX_FFT_LIBRARY=fftpack")
+		ewarn "WARNING: The built-in FFTPACK routines are slow."
+		ewarn "Are you sure you don\'t want to use FFTW?"
+		ewarn "It is free and much faster..."
+	fi
+
+	if [[ $(gcc-version) == "4.1" ]]; then
+		eerror "gcc 4.1 is not supported by gromacs"
+		eerror "please run test suite"
+		die
+	fi
+
+	#note for gentoo-PREFIX on apple: use --enable-apple-64bit
+
+	#note for gentoo-PREFIX on aix, fortran (xlf) is still much faster
+	if use fkernels; then
+		ewarn "Fortran kernels are usually not faster than C kernels and assembly"
+		ewarn "I hope, you know what are you doing..."
+	fi
+
+	if use double-precision ; then
+		#from gromacs manual
+		elog
+		elog "For most simulations single precision is accurate enough. In some"
+		elog "cases double precision is required to get reasonable results:"
+		elog
+		elog "-normal mode analysis, for the conjugate gradient or l-bfgs minimization"
+		elog " and the calculation and diagonalization of the Hessian "
+		elog "-calculation of the constraint force between two large groups of	atoms"
+		elog "-energy conservation: this can only be done without temperature coupling and"
+		elog " without cutoffs"
+		elog
+	fi
+
+	if use mpi ; then
+		elog "You have enabled mpi, only mdrun will make use of mpi, that is why"
+		elog "we configure/compile gromacs twice (with and without mpi) and only"
+		elog "install mdrun with mpi support. In addtion you will get libgmx and"
+		elog "libmd with and without mpi support."
+	fi
+
+	#go from slowest to fasterest acceleration
+	local acce="none"
+	use fkernels && acce="fortran"
+	use altivec && acce="altivec"
+	use ia64 && acce="ia64"
+	use sse2 && acce="sse"
+
+	mycmakeargs_pre+=(
+		$(cmake-utils_use X GMX_X11)
+		$(cmake-utils_use blas GMX_EXTERNAL_BLAS)
+		$(cmake-utils_use gsl GMX_GSL)
+		$(cmake-utils_use lapack GMX_EXTERNAL_LAPACK)
+		$(cmake-utils_use threads GMX_THREADS)
+		$(cmake-utils_use xml GMX_XML)
+		-DGMX_DEFAULT_SUFFIX=off
+		-DGMX_ACCELERATION="$acce"
+		-DGMXLIB="$(get_libdir)"
+	)
+
+	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"
+		mycmakeargs=( ${mycmakeargs_pre[@]} ${p} -DGMX_MPI=OFF
+			-DGMX_BINARY_SUFFIX="${suffix}" -DGMX_LIBS_SUFFIX="${suffix}" )
+		CMAKE_BUILD_DIR="${WORKDIR}/${P}_${x}" cmake-utils_src_configure
+		use mpi || continue
+		einfo "Configuring for ${x} precision with mpi"
+		mycmakeargs=( ${mycmakeargs_pre[@]} ${p} -DGMX_MPI=ON
+			-DGMX_BINARY_SUFFIX="_mpi${suffix}" -DGMX_LIBS_SUFFIX="_mpi${suffix}" )
+		CMAKE_BUILD_DIR="${WORKDIR}/${P}_${x}_mpi" cmake-utils_src_configure
+	done
+}
+
+src_compile() {
+	for x in ${GMX_DIRS}; do
+		einfo "Compiling for ${x} precision"
+		CMAKE_BUILD_DIR="${WORKDIR}/${P}_${x}"\
+			cmake-utils_src_compile
+		use mpi || continue
+		einfo "Compiling for ${x} precision with mpi"
+		CMAKE_BUILD_DIR="${WORKDIR}/${P}_${x}_mpi"\
+			cmake-utils_src_compile mdrun
+	done
+}
+
+src_test() {
+	for x in ${GMX_DIRS}; do
+		local oldpath="${PATH}"
+		export PATH="${WORKDIR}/${P}_${x}/src/kernel:${S}-{x}/src/tools:${PATH}"
+		cd "${WORKDIR}/${P}_${x}"
+		emake -j1 tests || die "${x} Precision test failed"
+		export PATH="${oldpath}"
+	done
+}
+
+src_install() {
+	for x in ${GMX_DIRS}; do
+		CMAKE_BUILD_DIR="${WORKDIR}/${P}_${x}" \
+			cmake-utils_src_install
+		use mpi || continue
+		#cmake-utils_src_install does not support args
+		#using cmake-utils_src_compile instead
+		CMAKE_BUILD_DIR="${WORKDIR}/${P}_${x}_mpi" \
+			cmake-utils_src_make install-mdrun DESTDIR="${D}"
+	done
+
+	sed -n -e '/^GMXBIN/,/^GMXDATA/p' "${ED}"/usr/bin/GMXRC.bash > "${T}/80gromacs"
+	echo "VMD_PLUGIN_PATH=${EPREFIX}/usr/$(get_libdir)/vmd/plugins/*/molfile/" >> "${T}/80gromacs"
+
+	doenvd "${T}/80gromacs"
+	rm -f "${ED}"/usr/bin/GMXRC*
+
+	newbashcomp "${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.*
+
+	# Fix typos in a couple of files.
+	sed -e "s:+0f:-f:" -i "${ED}"usr/share/gromacs/tutor/gmxdemo/demo \
+		|| die "Failed to fixup demo script."
+
+	cd "${S}"
+	dodoc AUTHORS INSTALL* README*
+	if use doc; then
+		newdoc "${DISTDIR}/gromacs-manual-${MANUAL_PV}.pdf" "manual-${MANUAL_PV}.pdf"
+		dohtml -r "${ED}usr/share/gromacs/html/"
+	fi
+	rm -rf "${ED}usr/share/gromacs/html/"
+}
+
+pkg_postinst() {
+	env-update && source /etc/profile
+	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
+	einfo  $(g_luck)
+	einfo  "For more Gromacs cool quotes (gcq) add g_luck to your .bashrc"
+	einfo
+	elog  "Gromacs can use sci-chemistry/vmd to read additional file formats"
+}