--- libswirl/build.h.orig	2020-10-18 11:22:48 UTC
+++ libswirl/build.h
@@ -139,6 +139,7 @@
 #define OS_DARWIN    0x10000003
 #define OS_IOS       0x10000004
 #define OS_ANDROID   0x10000005
+#define OS_FREEBSD   0x10000006
 
 #define OS_UWP       0x10000011
 #define OS_NSW_HOS   0x80000001
