--- SConscript.orig	2019-02-17 19:08:04 UTC
+++ SConscript
@@ -364,11 +364,7 @@ def findLibs(env, conf):
 				FatalError("OpenGL framework not found or not installed")
 
 	if platform == "Linux" or platform == "FreeBSD":
-		if not conf.CheckLib('X11'):
-			FatalError("X11 development library not found or not installed")
-
-		if not conf.CheckLib('rt'):
-			FatalError("librt not found or not installed")
+		pass
 	elif platform == "Windows":
 		#These need to go last
 		if not conf.CheckLib('gdi32') or not conf.CheckLib('winmm') or (not msvc and not conf.CheckLib('dxguid')):