Fix build with OpenGL ES 1

source/Irrlicht/CMakeLists.txt

@@ -321,7 +321,7 @@ set(link_libs
 	"$<$<BOOL:${USE_SDL2}>:${SDL2_LIBRARIES}>"
 
 	"$<$<BOOL:${OPENGL_DIRECT_LINK}>:${OPENGL_LIBRARIES}>"
-	"$<$<BOOL:${OPENGLES_DIRECT_LINK}>:${OPENGLES_LIBRARIES}>"
+	"$<$<BOOL:${OPENGLES_DIRECT_LINK}>:${OPENGLES_LIBRARY}>"
 	"$<$<BOOL:${OPENGLES2_DIRECT_LINK}>:${OPENGLES2_LIBRARIES}>"
 	${EGL_LIBRARY}