%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  poLCAParallel
%global packver   1.2.7
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          1.2.7
Release:          1%{?dist}%{?buildtag}
Summary:          Polytomous Variable Latent Class Analysis Parallel

License:          GPL-2
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel >= 4.1.2
Requires:         R-core >= 4.1.2
BuildRequires:    R-CRAN-Rcpp >= 1.0.7
BuildRequires:    R-CRAN-RcppArmadillo >= 0.12.4.1.0
BuildRequires:    R-CRAN-scatterplot3d 
BuildRequires:    R-CRAN-MASS 
BuildRequires:    R-parallel 
BuildRequires:    R-CRAN-poLCA 
Requires:         R-CRAN-Rcpp >= 1.0.7
Requires:         R-CRAN-scatterplot3d 
Requires:         R-CRAN-MASS 
Requires:         R-parallel 
Requires:         R-CRAN-poLCA 

%description
A 'C++' reimplementation of 'poLCA' - latent class analysis and latent
class regression models for polytomous outcome variables, also known as
latent structure analysis. It attempts to reproduce results and be as
similar as possible to the original code, while running faster, especially
with multiple repetitions, by utilising multiple threads. Further reading
is available on the Queen Mary, University of London, IT Services Research
blog <https://blog.hpc.qmul.ac.uk/speeding_up_r_packages/>.

%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}