%global __brp_check_rpaths %{nil}
%global __requires_exclude ^libmpi
%global packname  fpCompare
%global packver   0.2.4
%global rlibdir   /usr/local/lib/R/library

Name:             R-CRAN-%{packname}
Version:          0.2.4
Release:          1%{?dist}%{?buildtag}
Summary:          Reliable Comparison of Floating Point Numbers

License:          GPL-3
URL:              https://cran.r-project.org/package=%{packname}
Source0:          %{url}&version=%{packver}#/%{packname}_%{packver}.tar.gz


BuildRequires:    R-devel >= 3.4
Requires:         R-core >= 3.4
BuildArch:        noarch

%description
Comparisons of floating point numbers are problematic due to errors
associated with the binary representation of decimal numbers. Despite
being aware of these problems, people still use numerical methods that
fail to account for these and other rounding errors (this pitfall is the
first to be highlighted in Circle 1 of Burns (2012) 'The R Inferno'
<https://www.burns-stat.com/pages/Tutor/R_inferno.pdf>). This package
provides new relational operators useful for performing floating point
number comparisons with a set tolerance.

%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}