%global __brp_check_rpaths %{nil}
%global packname  cubicBsplines
%global packver   1.0.0
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          1.0.0
Release:          1%{?dist}%{?buildtag}
Summary:          Computation of a Cubic B-Spline Basis and Its Derivatives

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
Computation of a cubic B-spline basis for arbitrary knots. It also
provides the 1st and 2nd derivatives, as well as the integral of the basis
elements. It is used by the author to fit penalized B-spline models, see
e.g. Jullion, A. and Lambert, P. (2006) <doi:10.1016/j.csda.2006.09.027>,
Lambert, P. and Eilers, P.H.C. (2009) <doi:10.1016/j.csda.2008.11.022>
and, more recently, Lambert, P. (2021) <doi:10.1016/j.csda.2021.107250>.
It is inspired by the algorithm developed by de Boor, C. (1977)
<doi:10.1137/0714026>.

%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}