%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  lacunr
%global packver   1.0.1
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          1.0.1
Release:          1%{?dist}%{?buildtag}
Summary:          Fast 3D Lacunarity for Voxel Data

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


BuildRequires:    R-devel >= 2.10
Requires:         R-core >= 2.10
BuildRequires:    R-CRAN-Rcpp >= 1.0.10
BuildRequires:    R-CRAN-data.table 
BuildRequires:    R-CRAN-abind 
BuildRequires:    R-CRAN-ggplot2 
BuildRequires:    R-CRAN-rlang 
BuildRequires:    R-CRAN-RcppArmadillo 
BuildRequires:    R-CRAN-RcppThread 
Requires:         R-CRAN-Rcpp >= 1.0.10
Requires:         R-CRAN-data.table 
Requires:         R-CRAN-abind 
Requires:         R-CRAN-ggplot2 
Requires:         R-CRAN-rlang 

%description
Calculates 3D lacunarity from voxel data. It is designed for use with
point clouds generated from Light Detection And Ranging (LiDAR) scans in
order to measure the spatial heterogeneity of 3-dimensional structures
such as forest stands. It provides fast 'C++' functions to efficiently bin
point cloud data into voxels and calculate lacunarity using different
variants of the gliding-box algorithm originated by Allain & Cloitre
(1991) <doi:10.1103/PhysRevA.44.3552>.

%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}