%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  RcppBlaze
%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:          'Rcpp' Integration for the 'Blaze' High-Performance 'C++' Math Library

License:          BSD_3_clause + file LICENSE
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel >= 4.2.0
Requires:         R-core >= 4.2.0
BuildRequires:    R-CRAN-Matrix >= 1.5.0
BuildRequires:    R-CRAN-Rcpp >= 1.0.0
Requires:         R-CRAN-Matrix >= 1.5.0
Requires:         R-CRAN-Rcpp >= 1.0.0

%description
Blaze is an open-source, high-performance 'C++' math library for dense and
sparse arithmetic. With its state-of-the-art Smart Expression Template
implementation Blaze combines the elegance and ease of use of a
domain-specific language with HPC-grade performance, making it one of the
most intuitive and fastest 'C++' math libraries available. The 'RcppBlaze'
package includes the header files from the 'Blaze' library with disabling
some functionalities related to link to the thread and system libraries
which make 'RcppBlaze' be a header-only library. Therefore, users do not
need to install 'Blaze'.

%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}