--- /dev/null
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+PYTHON_COMPAT=( python2_7 )
+
+inherit toolchain-funcs cmake-utils python-single-r1 java-pkg-opt-2 java-ant-2
+
+DESCRIPTION="A collection of algorithms and sample code for various computer vision problems"
+HOMEPAGE="http://opencv.willowgarage.com"
+
+SRC_URI="https://github.com/Itseez/opencv/archive/${PV}.zip -> ${P}.zip"
+
+LICENSE="BSD"
+SLOT="0/2.4"
+KEYWORDS="~amd64 ~arm ~ppc ~ppc64 ~x86 ~amd64-linux"
+IUSE="cuda doc +eigen examples ffmpeg gstreamer gtk ieee1394 ipp jpeg jpeg2k libav opencl openexr opengl openmp pch png +python qt4 testprograms threads tiff v4l vtk xine"
+REQUIRED_USE="
+ python? ( ${PYTHON_REQUIRED_USE} )
+"
+
+# The following logic is intrinsic in the build system, but we do not enforce
+# it on the useflags since this just blocks emerging pointlessly:
+# gtk? ( !qt4 )
+# opengl? ( || ( gtk qt4 ) )
+# openmp? ( !threads )
+
+RDEPEND="
+ app-arch/bzip2
+ sys-libs/zlib
+ cuda? ( >=dev-util/nvidia-cuda-toolkit-5.5 )
+ ffmpeg? (
+ libav? ( media-video/libav:0= )
+ !libav? ( media-video/ffmpeg:0= )
+ )
+ gstreamer? (
+ media-libs/gstreamer:1.0
+ media-libs/gst-plugins-base:1.0
+ )
+ gtk? (
+ dev-libs/glib:2
+ x11-libs/gtk+:2
+ opengl? ( x11-libs/gtkglext )
+ )
+ java? ( >=virtual/jre-1.6:* )
+ jpeg? ( virtual/jpeg:0 )
+ jpeg2k? ( media-libs/jasper )
+ ieee1394? (
+ media-libs/libdc1394
+ sys-libs/libraw1394
+ )
+ ipp? ( sci-libs/ipp )
+ opencl? ( virtual/opencl )
+ openexr? ( media-libs/openexr )
+ opengl? ( virtual/opengl virtual/glu )
+ png? ( media-libs/libpng:0= )
+ python? ( ${PYTHON_DEPS} dev-python/numpy[${PYTHON_USEDEP}] )
+ qt4? (
+ dev-qt/qtgui:4
+ dev-qt/qttest:4
+ opengl? ( dev-qt/qtopengl:4 )
+ )
+ threads? ( dev-cpp/tbb )
+ tiff? ( media-libs/tiff:0 )
+ v4l? ( >=media-libs/libv4l-0.8.3 )
+ vtk? ( sci-libs/vtk[rendering] )
+ xine? ( media-libs/xine-lib )
+"
+DEPEND="${RDEPEND}
+ virtual/pkgconfig
+ eigen? ( dev-cpp/eigen:3 )
+ java? ( >=virtual/jdk-1.6 )
+"
+
+pkg_setup() {
+ use python && python-single-r1_pkg_setup
+ java-pkg-opt-2_pkg_setup
+}
+
+src_prepare() {
+ epatch "${FILESDIR}/${PN}-2.3.1a-libav-0.7.patch" \
+ "${FILESDIR}/${PN}-2.4.3-gcc47.patch" \
+ "${FILESDIR}/${PN}-2.4.2-cflags.patch" \
+ "${FILESDIR}/${PN}-2.4.8-javamagic.patch" \
+ "${FILESDIR}/${PN}-2.4.9-cuda-pkg-config.patch"
+
+ # remove bundled stuff
+ rm -rf 3rdparty
+ sed -i \
+ -e '/add_subdirectory(3rdparty)/ d' \
+ CMakeLists.txt || die
+
+ java-pkg-opt-2_src_prepare
+}
+
+src_configure() {
+ if use openmp; then
+ tc-has-openmp || die "Please switch to an openmp compatible compiler"
+ fi
+
+ JAVA_ANT_ENCODING="iso-8859-1"
+ # set encoding so even this cmake build will pick it up.
+ export ANT_OPTS+=" -Dfile.encoding=iso-8859-1"
+ java-ant-2_src_configure
+
+ # please dont sort here, order is the same as in CMakeLists.txt
+ local mycmakeargs=(
+ # the optinal dependency libraries
+ $(cmake-utils_use_with ieee1394 1394)
+ -DWITH_AVFOUNDATION=OFF
+ -DWITH_CARBON=OFF
+ $(cmake-utils_use_with eigen)
+ $(cmake-utils_use_with ffmpeg)
+ $(cmake-utils_use_with gstreamer)
+ $(cmake-utils_use_with gtk)
+ $(cmake-utils_use_with ipp)
+ $(cmake-utils_use_with java)
+ $(cmake-utils_use_with jpeg2k JASPER)
+ $(cmake-utils_use_with jpeg)
+ $(cmake-utils_use_with opencl)
+ # $(cmake-utils_use_with opencl OPENCLAMDFFT)
+ # $(cmake-utils_use_with opencl OPENCLAMDBLAS)
+ $(cmake-utils_use_with openexr)
+ $(cmake-utils_use_with opengl)
+ $(cmake-utils_use_with openmp)
+ -DWITH_OPENNI=OFF # not packaged
+ $(cmake-utils_use_with png)
+ $(cmake-utils_use_build python opencv_python)
+ -DWITH_PVAPI=OFF # not packaged
+ -DWITH_QUICKTIME=OFF
+ $(cmake-utils_use_with threads TBB)
+ $(cmake-utils_use_with tiff)
+ -DWITH_UNICAP=OFF # not packaged
+ $(cmake-utils_use_with v4l V4L)
+ $(cmake-utils_use_with vtk VTK)
+ -DWITH_LIBV4L=ON
+ -DWITH_VIDEOINPUT=OFF # windows only
+ -DWITH_XIMEA=OFF # windows only
+ $(cmake-utils_use_with xine)
+ # the build components
+ -DBUILD_SHARED_LIBS=ON
+ -DBUILD_ANDROID_EXAMPLES=OFF
+ $(cmake-utils_use_build doc DOCS)
+ $(cmake-utils_use_build examples)
+ -DBUILD_PERF_TESTS=OFF
+ $(cmake-utils_use_build testprograms TESTS)
+ # install examples, tests etc
+ $(cmake-utils_use examples INSTALL_C_EXAMPLES)
+ $(cmake-utils_use testprograms INSTALL_TESTS)
+ # build options
+ $(cmake-utils_use_enable pch PRECOMPILED_HEADERS)
+ -DENABLE_OMIT_FRAME_POINTER=OFF #
+ -DENABLE_FAST_MATH=OFF #
+ -DENABLE_SSE=OFF # these options do nothing but
+ -DENABLE_SSE2=OFF # add params to CFLAGS
+ -DENABLE_SSE3=OFF
+ -DENABLE_SSSE3=OFF
+ -DENABLE_SSE41=OFF
+ -DENABLE_SSE42=OFF
+ -DOPENCV_EXTRA_FLAGS_RELEASE="" # black magic
+ )
+
+ if use qt4; then
+ mycmakeargs+=( "-DWITH_QT=4" )
+ else
+ mycmakeargs+=( "-DWITH_QT=OFF" )
+ fi
+
+ if use cuda; then
+ if [[ "$(gcc-version)" > "4.7" ]]; then
+ ewarn "CUDA and >=sys-devel/gcc-4.8 do not play well together. Disabling CUDA support."
+ mycmakeargs+=( "-DWITH_CUDA=OFF" )
+ mycmakeargs+=( "-DWITH_CUBLAS=OFF" )
+ mycmakeargs+=( "-DWITH_CUFFT=OFF" )
+ else
+ mycmakeargs+=( "-DWITH_CUDA=ON" )
+ mycmakeargs+=( "-DWITH_CUBLAS=ON" )
+ mycmakeargs+=( "-DWITH_CUFFT=ON" )
+ fi
+ else
+ mycmakeargs+=( "-DWITH_CUDA=OFF" )
+ mycmakeargs+=( "-DWITH_CUBLAS=OFF" )
+ mycmakeargs+=( "-DWITH_CUFFT=OFF" )
+ fi
+
+ if use examples && use python; then
+ mycmakeargs+=( "-DINSTALL_PYTHON_EXAMPLES=ON" )
+ else
+ mycmakeargs+=( "-DINSTALL_PYTHON_EXAMPLES=OFF" )
+ fi
+
+ # things we want to be hard off or not yet figured out
+ mycmakeargs+=(
+ "-DOPENCV_BUILD_3RDPARTY_LIBS=OFF"
+ "-DBUILD_LATEX_DOCS=OFF"
+ "-DBUILD_PACKAGE=OFF"
+ "-DENABLE_PROFILING=OFF"
+ )
+
+ # things we want to be hard enabled not worth useflag
+ mycmakeargs+=(
+ "-DCMAKE_SKIP_RPATH=ON"
+ "-DOPENCV_DOC_INSTALL_PATH=${EPREFIX}/usr/share/doc/${PF}"
+ )
+
+ # hardcode cuda paths
+ mycmakeargs+=(
+ "-DCUDA_NPP_LIBRARY_ROOT_DIR=/opt/cuda"
+ )
+
+ # workaround for bug 413429
+ tc-export CC CXX
+
+ cmake-utils_src_configure
+}
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