diff -Naur Chipmunk2D-Chipmunk-7.0.3.orig/src/cpHastySpace.c Chipmunk2D-Chipmunk-7.0.3/src/cpHastySpace.c
--- Chipmunk2D-Chipmunk-7.0.3.orig/src/cpHastySpace.c	2020-10-01 22:42:46.218323897 -0400
+++ Chipmunk2D-Chipmunk-7.0.3/src/cpHastySpace.c	2020-10-01 22:43:20.858552865 -0400
@@ -8,7 +8,6 @@
 
 //#include <sys/param.h >
 #ifndef _WIN32
-#include <sys/sysctl.h>
 #include <pthread.h>
 #else
 #ifndef WIN32_LEAN_AND_MEAN