Arch Linux User Repository

Development is on Github: https://github.com/acxz/pkgbuilds Please open issues and PRs there instead of commenting.

Please update. Thanks @hanno : Working PKGBUILD below

# Maintainer: Sven-Hendrik Haase <sh@lutzhaase.com>
# Maintainer: Javier Fuentes <0xffaa.rm@gmail.com>
# Contributor: Figo.zhang <figo1802@gmail.com>
# Contributor: hauptmech

pkgname=flann
pkgver=1.8.4
pkgrel=2
pkgdesc="FLANN is a library for performing fast approximate nearest neighbor searches in high dimensional spaces"
arch=('i686' 'x86_64')
url='http://www.cs.ubc.ca/~mariusm/index.php/FLANN/FLANN'
license=('BSD')
depends=('hdf5')
makedepends=('cmake' 'python2')
optdepends=('python2: python bindings'
'cuda: cuda support')
source=("http://people.cs.ubc.ca/~mariusm/uploads/FLANN/flann-${pkgver}-src.zip" "http://pkgs.fedoraproject.org/cgit/rpms/flann.git/plain/flann-1.8.4-gcc6.patch")
md5sums=('a0ecd46be2ee11a68d2a7d9c6b4ce701'
'21ec2d7009fb09307ab74909f3b1d04e')

build() {
cd $srcdir/flann-${pkgver}-src
patch -p0 < ../flann-1.8.4-gcc6.patch

sed -i 's/lib64/lib/g' cmake/flann_utils.cmake

sed -i '1 i #undef _GLIBCXX_ATOMIC_BUILTINS' src/cpp/flann/algorithms/kdtree_cuda_3d_index.cu
sed -i '1 i #undef _GLIBCXX_USE_INT128' src/cpp/flann/algorithms/kdtree_cuda_3d_index.cu

sed -i 's|#!/usr/bin/env python|#!/usr/bin/python2|' \
bin/download_checkmd5.py \
bin/run_test.py \
src/python/setup.py.tpl \
test/test_clustering.py \
test/test_index_save.py \
test/test_nn_autotune.py \
test/test_nn_index.py \
test/test_nn.py

sed -i 's|#!/usr/bin/python|#!/usr/bin/python2|' \
test/memusage_clustering.py \
test/memusage_nn.py

sed -i "s|setup\.py install|setup.py install --root=$pkgdir --optimize=1|" src/python/CMakeLists.txt

[[ -d build ]] && rm -r build
mkdir build && cd build
cmake .. \
-DCMAKE_BUILD_TYPE=Release \
-DCMAKE_INSTALL_PREFIX=/usr \
-DBUILD_MATLAB_BINDINGS=OFF \
-DBUILD_PYTHON_BINDINGS=ON \
-DPYTHON_EXECUTABLE=/usr/bin/python2 \
-DNVCC_COMPILER_BINDIR=/usr/bin
make
}

package() {
cd $srcdir/flann-${pkgver}-src

cd build
make DESTDIR=$pkgdir install

#install license file
install -D -m644 ../COPYING "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE"

# FIXME: awful hack, but I got this error without the fix:
# running install_lib
# copying build/lib/pyflann/exceptions.py -> /usr/lib/python2.7/site-packages/pyflann
# error: /usr/lib/python2.7/site-packages/pyflann/exceptions.py: Permission denied
_python2libpath="`python2 -c "from distutils.sysconfig import get_python_lib; print get_python_lib()" | tr -d '\n'`"
mkdir -p "${pkgdir}${_python2libpath}"
cp -pr "${pkgdir}/usr/share/flann/python/pyflann" "${pkgdir}${_python2libpath}/pyflann"

}

Not working anymore with gcc6 - this patch helps: http://pkgs.fedoraproject.org/cgit/rpms/flann.git/plain/flann-1.8.4-gcc6.patch

Should update to handle new C++ ABI default. https://www.archlinux.org/news/c-abi-change/

cuda opt-depend only

+1 for CUDA as an opt-depend only

Indeed, cuda should be an optional dependency. If users install AUR packages recursively (e.g. PCL), they will end up installing CUDA automatically even if they cannot use it. And that is quite a lot of wasted storage space...

+1 for CUDA as an opt-depend only

Feel free to take over maintainership. I disowned the package.

+1 for CUDA as an opt-depend

CUDA should be listed as an opt-depend instead of a makedepend.
Users without nvidia graphics cards can install flann without CUDA and nvidia drivers.