%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  RcppEigen
%global packver   0.3.4.0.0
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.3.4.0.0
Release:          1%{?dist}%{?buildtag}
Summary:          'Rcpp' Integration for the 'Eigen' Templated Linear Algebra Library

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


BuildRequires:    R-devel >= 3.6.0
Requires:         R-core >= 3.6.0
BuildRequires:    R-CRAN-Rcpp >= 0.11.0
BuildRequires:    R-stats 
BuildRequires:    R-utils 
Requires:         R-CRAN-Rcpp >= 0.11.0
Requires:         R-stats 
Requires:         R-utils 

%description
R and 'Eigen' integration using 'Rcpp'. 'Eigen' is a C++ template library
for linear algebra: matrices, vectors, numerical solvers and related
algorithms.  It supports dense and sparse matrices on integer, floating
point and complex numbers, decompositions of such matrices, and solutions
of linear systems. Its performance on many algorithms is comparable with
some of the best implementations based on 'Lapack' and level-3 'BLAS'. The
'RcppEigen' package includes the header files from the 'Eigen' C++
template library. Thus users do not need to install 'Eigen' itself in
order to use 'RcppEigen'. Since version 3.1.1, 'Eigen' is licensed under
the Mozilla Public License (version 2); earlier version were licensed
under the GNU LGPL version 3 or later. 'RcppEigen' (the 'Rcpp'
bindings/bridge to 'Eigen') is licensed under the GNU GPL version 2 or
later, as is the rest of 'Rcpp'.

%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}