opengl.pc is glvnd
--
diff --git a/nkk.pc b/nkk.pc
index dbe8e64..38837f1 100644
--- a/nkk.pc
+++ b/nkk.pc
@@ -5,6 +5,6 @@ includedir=${prefix}/include
 Name: nkk
 Description: Wayland client library
 Version: 0.1
-Requires: opengl pangocairo wayland-egl
+Requires: egl pangocairo wayland-egl
 Requires.private: wayland-client xkbcommon
 Libs: -L${libdir} -lnkk