Include sdl.pc in the development RPM
diff --git a/SDL.spec.in b/SDL.spec.in
index cbc4fdb..329d599 100644
--- a/SDL.spec.in
+++ b/SDL.spec.in
@@ -77,6 +77,7 @@
 %{_libdir}/lib*.%{__soext}
 %dir %{_includedir}/SDL
 %{_includedir}/SDL/*.h
+%{_libdir}/pkgconfig/sdl.pc
 %{_datadir}/aclocal/*
 %{_mandir}/man3/*