$NetBSD: patch-libs_pbd_cpus.cc,v 1.1 2024/03/18 15:36:15 ryoon Exp $

--- libs/pbd/cpus.cc.orig	2024-02-04 02:25:51.019870123 +0000
+++ libs/pbd/cpus.cc
@@ -25,7 +25,7 @@
 
 #ifdef __linux__
 #include <unistd.h>
-#elif defined(__APPLE__) || defined(__FreeBSD__)
+#elif defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
 #include <stddef.h>
 #include <sys/types.h>
 #include <sys/sysctl.h>