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# Copyright 1999-2017 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI=5
inherit cmake-utils cuda eutils multilib toolchain-funcs
DESCRIPTION="Fast approximate nearest neighbor searches in high dimensional spaces"
HOMEPAGE="http://www.cs.ubc.ca/research/flann/"
SRC_URI="
http://people.cs.ubc.ca/~mariusm/uploads/FLANN/${P}-src.zip
test? ( https://dev.gentoo.org/~bicatali/distfiles/${P}-testdata.tar.xz )"
LICENSE="BSD"
SLOT="0"
KEYWORDS="~amd64 ~arm ~ppc ~x86 ~amd64-linux ~x86-linux"
IUSE="cuda doc examples mpi openmp octave static-libs test"
RDEPEND="
cuda? ( >=dev-util/nvidia-cuda-toolkit-5.5 )
mpi? (
sci-libs/hdf5[mpi]
dev-libs/boost[mpi]
)
!mpi? ( !sci-libs/hdf5[mpi] )
octave? ( >=sci-mathematics/octave-3.6.4-r1 )"
DEPEND="${RDEPEND}
app-arch/unzip
doc? ( dev-tex/latex2html )
test? (
dev-cpp/gtest
cuda? ( sci-libs/hdf5 )
)
"
PATCHES=(
"${FILESDIR}"/${P}-examples.patch
"${FILESDIR}"/${P}-options.patch
"${FILESDIR}"/${P}-CUDA_NVCC_FLAGS.patch
"${FILESDIR}"/${P}-cuda5.5.patch
"${FILESDIR}"/${P}-multilib.patch
"${FILESDIR}"/${P}-docdir.patch
)
S="${WORKDIR}"/${P}-src
pkg_setup() {
if use openmp; then
if [[ $(tc-getCC) == *gcc ]] && ! tc-has-openmp ; then
ewarn "OpenMP is not available in your current selected gcc"
die "need openmp capable gcc"
fi
fi
}
src_prepare() {
# bug #302621
use mpi && export CXX=mpicxx
# produce pure octave files
# octave gentoo installation for .m files respected
sed -i \
-e 's/--mex//' \
-e 's/\.mex/\.oct/' \
-e '/FILES/s/${MEX_FILE}//' \
-e 's:share/flann/octave:share/octave/site/m:' \
-e "/CUSTOM_TARGET/a\INSTALL(FILES \${MEX_FILE} DESTINATION libexec/octave/site/oct/${CHOST})" \
src/matlab/CMakeLists.txt || die
use cuda && cuda_src_prepare
cmake-utils_src_prepare
}
src_configure() {
# python bindings are split
local mycmakeargs=(
-DBUILD_C_BINDINGS=ON
-DBUILD_PYTHON_BINDINGS=OFF
-DPYTHON_EXECUTABLE=
-DDOCDIR=share/doc/${PF}
$(cmake-utils_use_build cuda CUDA_LIB)
$(cmake-utils_use_build examples)
$(cmake-utils_use_build doc)
$(cmake-utils_use_build test TESTS)
$(cmake-utils_use_build octave MATLAB_BINDINGS)
$(cmake-utils_use_use mpi)
$(cmake-utils_use_use openmp)
)
use cuda && \
mycmakeargs+=(
-DCUDA_NVCC_FLAGS="${NVCCFLAGS},-arsch"
)
cmake-utils_src_configure
}
src_test() {
ln -s "${WORKDIR}"/testdata/* test/ || die
# -j1 to avoid obversubscribing jobs
LD_LIBRARY_PATH="${BUILD_DIR}/lib" \
cmake-utils_src_compile -j1 test
}
src_install() {
cmake-utils_src_install
dodoc README.md
if ! use static-libs; then
find "${ED}" -name 'lib*.a' -exec rm -rf '{}' '+' || die
fi
}
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