diff --git devel/ChipmunkPhysics/files/patch-include_chipmunk_chipmunk.h devel/ChipmunkPhysics/files/patch-include_chipmunk_chipmunk.h
index 0d984ae..35758c9 100644
--- devel/ChipmunkPhysics/files/patch-include_chipmunk_chipmunk.h
+++ devel/ChipmunkPhysics/files/patch-include_chipmunk_chipmunk.h
@@ -1,10 +1,11 @@
 --- include/chipmunk/chipmunk.h.orig	2015-01-13 01:54:11 UTC
 +++ include/chipmunk/chipmunk.h
-@@ -32,6 +32,8 @@
+@@ -32,6 +32,9 @@
  #ifdef WIN32
  	// For alloca().
  	#include <malloc.h>
-+#elif defined(__FreeBSD__)
++#elif defined(__DragonFly__) || defined(__FreeBSD__) \
++   || defined(__NetBSD__) || defined(__OpenBSD__) \
 +	/* already included in <stdlib.h> */
  #else
  	#include <alloca.h>
diff --git devel/ChipmunkPhysics/files/patch-src_cpHastySpace.c devel/ChipmunkPhysics/files/patch-src_cpHastySpace.c
new file mode 100644
index 0000000..7ab878f
--- /dev/null
+++ devel/ChipmunkPhysics/files/patch-src_cpHastySpace.c
@@ -0,0 +1,41 @@
+--- src/cpHastySpace.c.orig	2015-01-13 01:54:11 UTC
++++ src/cpHastySpace.c
+@@ -5,8 +5,11 @@
+ #include <stdio.h>
+ 
+ #include <pthread.h>
+-//#include <sys/param.h >
+-#include <sys/sysctl.h>
++#ifdef _WIN32
++#include <windows.h>
++#else
++#include <unistd.h>
++#endif
+ 
+ #include "chipmunk/chipmunk_private.h"
+ #include "chipmunk/cpHastySpace.h"
+@@ -313,15 +316,18 @@ cpHastySpaceSetThreads(cpSpace *space, u
+ 	
+ 	cpHastySpace *hasty = (cpHastySpace *)space;
+ 	HaltThreads(hasty);
+-	
+-#ifdef __APPLE__
++
+ 	if(threads == 0){
+-		size_t size = sizeof(threads);
+-		sysctlbyname("hw.ncpu", &threads, &size, NULL, 0);
+-	}
++#if defined(_SC_NPROCESSORS_CONF)
++		threads = sysconf(_SC_NPROCESSORS_CONF);
++#elif defined(_WIN32)
++		SYSTEM_INFO siSysInfo;
++		GetSystemInfo(&siSysInfo);
++		threads = siSysInfo.dwNumberOfProcessors;
+ #else
+-	if(threads == 0) threads = 1;
++		threads = 1;
+ #endif
++	}
+ 	
+ 	hasty->num_threads = (threads < MAX_THREADS ? threads : MAX_THREADS);
+ 	hasty->num_working = hasty->num_threads - 1;