Fix FTBFS due to the move of /usr/bin/python into a separate package

See https://fedoraproject.org/wiki/Changes/Move_usr_bin_python_into_separate_package

Add BR for gcc and gcc-c++

lilv.spec

@@ -3,7 +3,7 @@
 
 Name:       lilv
 Version:    0.24.2
-Release:    8%{?dist}
+Release:    9%{?dist}
 Summary:    An LV2 Resource Description Framework Library
 
 License:    MIT
@@ -18,6 +18,8 @@ BuildRequires:  python2-devel
 BuildRequires:  swig
 BuildRequires:  numpy
 BuildRequires:  serd-devel >= 0.14.0
+BuildRequires:  gcc
+BuildRequires:  gcc-c++
 
 %description
 %{name} is a library to make the use of LV2 plugins as simple as possible 
@@ -56,14 +58,14 @@ sed -i -e "s|'-ftest-coverage'\]|\
 %build
 export CFLAGS="%{optflags}" CXXFLAGS="%{optflags}"
 export LINKFLAGS="%{__global_ldflags}"
-./waf configure -v --prefix=%{_prefix}\
+%{__python2} waf configure -v --prefix=%{_prefix}\
  --libdir=%{_libdir} --configdir=%{_sysconfdir} --mandir=%{_mandir}\
  --docdir=%{_pkgdocdir}\
  --docs --test --dyn-manifest --bindings
-./waf -v build %{?_smp_mflags}
+%{__python2} waf -v build %{?_smp_mflags}
 
 %install
-./waf -v install --destdir=%{buildroot} 
+%{__python2} waf -v install --destdir=%{buildroot}
 chmod +x %{buildroot}%{_libdir}/lib%{name}-0.so.*
 
 %post -p /sbin/ldconfig
@@ -96,6 +98,10 @@ chmod +x %{buildroot}%{_libdir}/lib%{name}-0.so.*
 %{python2_sitelib}/%{name}.*
 
 %changelog
+* Sun Jul 15 2018 Guido Aulisi <guido.aulisi@gmail.com> - 0.24.2-9
+- Fix FTBFS due to the move of /usr/bin/python into a separate package
+- Add BR for gcc and gcc-c++
+
 * Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.24.2-8
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild