--- /dev/null
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+WX_GTK_VER="3.0"
+
+inherit cmake-utils eutils wxwidgets
+
+DESCRIPTION="Interconverts file formats used in molecular modeling"
+HOMEPAGE="http://openbabel.sourceforge.net/"
+SRC_URI="mirror://sourceforge/openbabel/${P}.tar.gz"
+
+# See src/CMakeLists.txt for LIBRARY_VERSION
+SLOT="0/5.0.0"
+LICENSE="GPL-2"
+KEYWORDS="~amd64 ~arm ~ppc ~x86 ~amd64-linux ~x86-linux ~ppc-macos"
+IUSE="doc openmp test wxwidgets"
+
+RDEPEND="
+ dev-cpp/eigen:3
+ dev-libs/libxml2:2
+ sci-libs/inchi
+ sys-libs/zlib
+ wxwidgets? ( x11-libs/wxGTK:${WX_GTK_VER}[X] )"
+DEPEND="${RDEPEND}
+ >=dev-util/cmake-2.4.8
+ doc? ( app-doc/doxygen )"
+
+DOCS=( AUTHORS NEWS.md README.md THANKS doc/dioxin.{inc,mol2} doc/README.{dioxin.pov,povray} )
+
+PATCHES=(
+ "${FILESDIR}"/${PN}-2.3.2-gcc-6_and_7-backport.patch
+ )
+
+pkg_setup() {
+ if use openmp; then
+ if [[ $(tc-getCC) == *gcc ]] && ! tc-has-openmp; then
+ ewarn "OpenMP is not available in your current selected gcc"
+ die "need openmp capable gcc"
+ fi
+ FORTRAN_NEED_OPENMP=1
+ fi
+}
+
+src_prepare() {
+ sed \
+ -e '/__GNUC__/s:== 4:>= 4:g' \
+ -i include/openbabel/shared_ptr.h || die
+ cmake-utils_src_prepare
+}
+
+src_configure() {
+ use wxwidgets && need-wxwidgets unicode
+ local mycmakeargs=(
+ -DOPENBABEL_USE_SYSTEM_INCHI=ON
+ -DOPENMP=$(usex openmp)
+ -DBUILD_GUI=$(usex wxwidgets)
+ )
+
+ cmake-utils_src_configure
+}
+
+src_install() {
+ docinto html
+ dodoc doc/{*.html,*.png}
+ if use doc ; then
+ docinto html/API
+ dodoc doc/API/html/*
+ fi
+
+ cmake-utils_src_install
+}
+
+src_test() {
+ local mycmakeargs=(
+ -DOPENBABEL_USE_SYSTEM_INCHI=ON
+ -DPYTHON_EXECUTABLE=false
+ -DOPENMP=$(usex openmp)
+ -DBUILD_GUI=$(usex wxwidgets)
+ -DTESTS=$(usex test)
+ )
+
+ cmake-utils_src_configure
+ cmake-utils_src_compile
+ cmake-utils_src_test -E py
+}
+
+pkg_postinst() {
+ optfeature "perl support" sci-chemistry/openbabel-perl
+ optfeature "python support" sci-chemistry/openbabel-python
+}