%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  RANN
%global packver   2.6.2
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          2.6.2
Release:          1%{?dist}%{?buildtag}
Summary:          Fast Nearest Neighbour Search (Wraps ANN Library) Using L2 Metric

License:          GPL (>= 3)
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel
Requires:         R-core

%description
Finds the k nearest neighbours for every point in a given dataset in O(N
log N) time using Arya and Mount's ANN library (v1.1.3). There is support
for approximate as well as exact searches, fixed radius searches and 'bd'
as well as 'kd' trees. The distance is computed using the L2 (Euclidean)
metric. Please see package 'RANN.L1' for the same functionality using the
L1 (Manhattan, taxicab) metric.

%prep
%setup -q -c -n %{packname}

# fix end of executable files
find -type f -executable -exec grep -Iq . {} \; -exec sed -i -e '$a\' {} \;
# prevent binary stripping
[ -d %{packname}/src ] && find %{packname}/src -type f -exec \
  sed -i 's@/usr/bin/strip@/usr/bin/true@g' {} \; || true
[ -d %{packname}/src ] && find %{packname}/src/Make* -type f -exec \
  sed -i 's@-g0@@g' {} \; || true
# don't allow local prefix in executable scripts
find -type f -executable -exec sed -Ei 's@#!( )*/usr/local/bin@#!/usr/bin@g' {} \;

%build

%install

mkdir -p %{buildroot}%{rlibdir}
%{_bindir}/R CMD INSTALL -l %{buildroot}%{rlibdir} %{packname}
test -d %{packname}/src && (cd %{packname}/src; rm -f *.o *.so)
rm -f %{buildroot}%{rlibdir}/R.css
# remove buildroot from installed files
find %{buildroot}%{rlibdir} -type f -exec sed -i "s@%{buildroot}@@g" {} \;

%files
%{rlibdir}/%{packname}