%{!?luaver: %global luaver %(lua -e "print(string.sub(_VERSION, 5))" || echo 0)}
%global lualibdir %{_libdir}/lua/%{luaver}

%global luacompatver 5.1
%global luacompatlibdir %{_libdir}/lua/%{luacompatver}

%if 0%{fedora}
# NOTE: for some reason, debugsourcefiles.list is empty when building on Fedora,
#       even though -g is present in CFLAGS
%global debug_package %{nil}
%endif

Name:           lua-bitop
Version:        1.0.2
Release:        4%{?dist}
Summary:        C extension module for Lua which adds bitwise operations on numbers

License:        MIT
URL:            http://bitop.luajit.org/
Source0:        http://bitop.luajit.org/download/LuaBitOp-%{version}.tar.gz

BuildRequires:  pkgconfig
BuildRequires:  gcc
%if 0%{?fedora} || 0%{?rhel} > 7
BuildRequires:  compat-lua
BuildRequires:  compat-lua-devel
%else
BuildRequires:  lua-devel >= %{luaver}
%endif

Requires:       lua >= %{luaver}

%description
Lua BitOp is a C extension module for Lua 5.1/5.2 which adds bitwise
operations on numbers.

%if 0%{?fedora} || 0%{?rhel} > 7
%package -n compat-%{name}
Summary:        C extension module for Lua %{luacompatver} which adds bitwise operations on numbers
Requires:       lua(abi) = %{luacompatver}

%description -n compat-%{name}
Lua BitOp is a C extension module for Lua 5.1/5.2 which adds bitwise
operations on numbers.
%endif

%prep
%setup -q  -n LuaBitOp-%{version}

%build
%if 0%{?fedora} || 0%{?rhel} > 7
LUALIB=lua-%{luacompatver}
%else
LUALIB=lua
%endif

CFLAGS="%{optflags} -fPIC $(pkg-config --cflags $LUALIB)"
LDFLAGS="$(pkg-config --libs $LUALIB)"

gcc $CFLAGS -c bit.c -o bit.o
gcc -shared $LDFLAGS -o bit.so bit.o

%install
%if 0%{?fedora} || 0%{?rhel} > 7
install -Dm644 bit.so %{buildroot}%{luacompatlibdir}/bit.so
%else
install -Dm644 bit.so %{buildroot}%{lualibdir}/bit.so
%endif

%if 0%{?rhel} && 0%{?rhel} <= 7
%files
%doc README
%{lualibdir}/*
%endif

%if 0%{?fedora} || 0%{?rhel} > 7
%files -n compat-%{name}
%doc README
%{luacompatlibdir}/*
%endif

%changelog
* Fri Apr 05 2019 Tomas Krizek <tomas.krizek@nic.cz> - 1.0.2-4
- Bring the package to F28+ for compat-lua
- Unify spec for Fedora and EPEL
- Remove obsolete Group tag

* Mon Aug 4 2014 - Orion Poplawski <orion@cora.nwra.com> - 1.0.2-3
- Fix install location

* Tue Jul 29 2014 - Orion Poplawski <orion@cora.nwra.com> - 1.0.2-2
- Drop BuildRoot
- Wrap description

* Thu Jun 26 2014 - Orion Poplawski <orion@cora.nwra.com> - 1.0.2-1
- Initial package