Handle lua and perl not being in buildroots

Use %license
Cleanup spec

lua-posix.spec

@@ -1,4 +1,4 @@
-%{!?luaver: %global luaver %(lua -e "print(string.sub(_VERSION, 5))")}
+%{!?luaver: %global luaver %(lua -e "print(string.sub(_VERSION, 5))" || echo 0)}
 %global lualibdir %{_libdir}/lua/%{luaver}
 %global luapkgdir %{_datadir}/lua/%{luaver}
 %global commit 58016bbba40b063e8a98a7e9f14acfcd46f103d4
@@ -6,16 +6,16 @@
 
 Name:           lua-posix
 Version:        33.3.1
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        A POSIX library for Lua
 Group:          Development/Libraries
 License:        Public Domain
 URL:            http://luaforge.net/projects/luaposix/
 Source0:        https://github.com/luaposix/luaposix/archive/release-v%{version}.tar.gz
-BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildRequires:  lua-devel
 BuildRequires:  ncurses-devel
 BuildRequires:	lua-lunit
+BuildRequires:  perl
 %if 0%{?fedora} || 0%{?rhel} >= 7
 Requires:       lua(abi) = %{luaver}
 %else
@@ -36,7 +36,6 @@ make V=1 %{?_smp_mflags}
 
 
 %install
-rm -rf $RPM_BUILD_ROOT
 make install DESTDIR=$RPM_BUILD_ROOT
 
 
@@ -44,12 +43,9 @@ make install DESTDIR=$RPM_BUILD_ROOT
 make V=1 check
 
 
-%clean
-rm -rf $RPM_BUILD_ROOT
-
-
 %files
-%doc AUTHORS ChangeLog COPYING NEWS README
+%license COPYING
+%doc AUTHORS ChangeLog NEWS README
 %{_defaultdocdir}/luaposix/
 %{lualibdir}/*
 %{luapkgdir}/*.lua
@@ -57,6 +53,11 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Mon Dec 12 2016 Orion Poplawski <orion@cora.nwra.com> - 33.3.1-3
+- Handle lua and perl not being in buildroots
+- Use %%license
+- Cleanup spec
+
 * Thu Feb 04 2016 Fedora Release Engineering <releng@fedoraproject.org> - 33.3.1-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild