-Source0: ftp://ftp.freedesktop.org/pub/mesa/glu/glu-%{version}.tar.bz2
-# Source0-md5: be9249132ff49275461cf92039083030
-URL: http://www.mesa3d.org/
-BuildRequires: OpenGL-devel >= 1.2
-BuildRequires: autoconf >= 2.60
-BuildRequires: automake
+Source0: https://archive.mesa3d.org/glu/glu-%{version}.tar.xz
+# Source0-md5: 06a4fff9179a98ea32ef41b6d83f6b19
+URL: https://www.mesa3d.org/
+%{?with_osmesa:BuildRequires: Mesa-libOSMesa-devel}
+%{?with_generic_opengl:BuildRequires: OpenGL-devel >= 1.2}
+%{?with_glvnd:BuildRequires: libglvnd-libGL-devel}