--- /dev/null
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit toolchain-funcs cmake-utils
+
+DESCRIPTION="Common bricks library for building distributed machine learning."
+HOMEPAGE="https://github.com/dmlc/dmlc-core"
+
+if [[ ${PV} == *9999* ]] ; then
+ EGIT_REPO_URI="git://github.com/dmlc/dmlc-core.git"
+ inherit git-r3
+ KEYWORDS=""
+else
+ EGIT_COMMIT="54db57d5d1b2a7b93319053011802888b827a539"
+ inherit vcs-snapshot
+ KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
+ SRC_URI="${HOMEPAGE}/archive/${EGIT_COMMIT}.tar.gz -> ${P}.tar.gz"
+fi
+
+LICENSE="Apache-2.0"
+SLOT="0"
+
+# hdfs needs big java hdfs not yet in portage
+# azure not yet in portage
+IUSE="doc openmp s3 test"
+
+RDEPEND="net-misc/curl[ssl]"
+DEPEND="${RDEPEND}
+ doc? ( app-doc/doxygen )
+ test? ( dev-cpp/gtest )
+"
+
+PATCHES=( "${FILESDIR}"/${PN}-install-dirs.patch )
+
+pkg_pretend() {
+ [[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+pkg_setup() {
+ [[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+src_prepare() {
+ cmake-utils_src_prepare
+ # respect user flags (SSE2 does nothing more than adding -msse2)
+ # also doc install everything so remove
+ sed -e '/-O3/d' \
+ -e '/check_cxx.*SSE2/d' \
+ -i CMakeLists.txt || die
+ # all these hacks below to allow testing
+ sed -e 's|-O3||' -e 's|-lm|-lm -L$(LD_LIBRARY_PATH) -ldmlc|g' -i Makefile || die
+ sed -e "s|libdmlc.a||g" \
+ -i test/dmlc_test.mk test/unittest/dmlc_unittest.mk || die
+ cat <<-EOF > config.mk
+ USE_SSE=0
+ WITH_FPIC=1
+ USE_OPENMP=$(use openmp && echo 1 || echo 0)
+ USE_S3=$(use s3 && echo 1 || echo 0)
+ BUILD_TEST=$(use test && echo 1 || echo 0)
+ DMLC_CFLAGS=${CXXFLAGS}
+ DMLC_LDFLAGS=${LDFLAGS}
+ EOF
+}
+
+src_configure() {
+ local mycmakeargs=(
+ -DBUILD_SHARED_LIBS=ON
+ -DUSE_S3="$(usex s3)"
+ -DUSE_OPENMP="$(usex openmp)"
+ )
+ cmake-utils_src_configure
+}
+
+src_compile() {
+ cmake-utils_src_compile
+ if use doc; then
+ doxygen doc/Doxyfile || die
+ fi
+}
+
+src_test() {
+ tc-export CXX
+ export LD_LIBRARY_PATH="${BUILD_DIR}"
+ emake test
+ test/unittest/dmlc_unittest || die
+}
+
+src_install() {
+ cmake-utils_src_install
+ if use doc; then
+ insinto /usr/share/doc/${PF}
+ doins -r doc/doxygen/html
+ docompress -x /usr/share/doc/${PF}/html
+ fi
+}
--- /dev/null
+From 536ba11dfdaa7feacc7fe5726a3a50e4d663da13 Mon Sep 17 00:00:00 2001
+From: Maarten de Vries <maarten@de-vri.es>
+Date: Fri, 26 May 2017 15:29:29 +0200
+Subject: [PATCH] Use GNUInstallDirs for standard conforming install target.
+
+---
+ CMakeLists.txt | 18 +++++++-----------
+ 1 file changed, 7 insertions(+), 11 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 0b3b3ec..316e2f5 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -121,18 +121,13 @@ endif()
+ add_library(dmlc ${SOURCE})
+ target_link_libraries(dmlc ${dmlccore_LINKER_LIBS})
+
+-# ---[ Install Includes
+-if(INSTALL_INCLUDE_DIR)
+- add_custom_command(TARGET dmlc POST_BUILD
+- COMMAND ${CMAKE_COMMAND} -E copy_directory
+- ${PROJECT_SOURCE_DIR}/include ${INSTALL_INCLUDE_DIR}/
+- )
+-endif()
+-
+ # ---[ Install the archive static lib and header files
+-install(TARGETS dmlc ARCHIVE DESTINATION lib)
+-install(DIRECTORY include DESTINATION .)
+-install(DIRECTORY doc DESTINATION .)
++include(GNUInstallDirs)
++install(TARGETS dmlc
++ ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
++ LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
++)
++install(DIRECTORY include/ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+
+ # ---[ Linter target
+ if(MSVC)
--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+ <maintainer type="project">
+ <email>sci-mathematics@gentoo.org</email>
+ <name>Gentoo Science Project</name>
+ </maintainer>
+ <longdescription lang="en">
+ Distributed Machine Learning Common Codebase Core is the backbone
+ library to support all DMLC projects, offers the bricks to build
+ efficient and scalable distributed machine learning libraries.
+ </longdescription>
+ <upstream>
+ <remote-id type="github">dmlc/dmlc-core</remote-id>
+ </upstream>
+ <use>
+ <flag name="s3">Support for the Amazon Simple Storage Service</flag>
+ </use>
+</pkgmetadata>