-PKG_CHECK_MODULES(GLIB, glib-2.0 >= 2.14 gobject-2.0 gthread-2.0 gmodule-export-2.0)
-PKG_CHECK_MODULES(GTK, gtk+-2.0 >= 2.16 gtkglext-1.0)
-PKG_CHECK_MODULES(SOUP, libsoup-2.4 >= 2.26)
-
-# Define odd RSL install location
-AC_CHECK_LIB(rsl, RSL_wsr88d_to_radar, RSL_LIBS="-lrsl")
-AM_CONDITIONAL(HAVE_RSL, test "$RSL_LIBS" != "")
-AC_SUBST(RSL_LIBS)
+PKG_CHECK_MODULES(GLIB, glib-2.0 >= 2.14 gobject-2.0 gthread-2.0)
+PKG_CHECK_MODULES(CAIRO, cairo)
+PKG_CHECK_MODULES(GTK, gtk+-2.0 >= 2.16 gtkglext-1.0)
+PKG_CHECK_MODULES(SOUP, libsoup-2.4 >= 2.26)