diff --git a/devel/libvirt/files/patch-src_util_virprocess.c b/devel/libvirt/files/patch-src_util_virprocess.c
new file mode 100644
index 000000000000..a3668f357617
--- /dev/null
+++ b/devel/libvirt/files/patch-src_util_virprocess.c
@@ -0,0 +1,11 @@
+--- src/util/virprocess.c.orig	2021-12-14 12:38:57 UTC
++++ src/util/virprocess.c
+@@ -480,7 +480,7 @@ int virProcessKillPainfully(pid_t pid, bool force)
+     return virProcessKillPainfullyDelay(pid, force, 0, false);
+ }
+ 
+-#if WITH_DECL_CPU_SET_T
++#if WITH_DECL_CPU_SET_T && defined(__linux__)
+ 
+ int virProcessSetAffinity(pid_t pid, virBitmap *map, bool quiet)
+ {