%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  onion
%global packver   1.5-3
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          1.5.3
Release:          1%{?dist}%{?buildtag}
Summary:          Octonions and Quaternions

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


BuildRequires:    R-devel >= 3.5.0
Requires:         R-core >= 3.5.0
BuildRequires:    R-CRAN-freealg >= 1.0.4
BuildRequires:    R-methods 
BuildRequires:    R-CRAN-emulator 
BuildRequires:    R-CRAN-Matrix 
BuildRequires:    R-CRAN-mathjaxr 
Requires:         R-CRAN-freealg >= 1.0.4
Requires:         R-methods 
Requires:         R-CRAN-emulator 
Requires:         R-CRAN-Matrix 
Requires:         R-CRAN-mathjaxr 

%description
Quaternions and Octonions are four- and eight- dimensional extensions of
the complex numbers.  They are normed division algebras over the real
numbers and find applications in spatial rotations (quaternions), and
string theory and relativity (octonions).  The quaternions are
noncommutative and the octonions nonassociative.  See the package vignette
for more details.

%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}