diff --git a/graphics/R-cran-s2/files/patch-src_absl_base_internal_unscaledcycleclock.cc b/graphics/R-cran-s2/files/patch-src_absl_base_internal_unscaledcycleclock.cc
new file mode 100644
index 000000000000..5118d6f31cb9
--- /dev/null
+++ b/graphics/R-cran-s2/files/patch-src_absl_base_internal_unscaledcycleclock.cc
@@ -0,0 +1,14 @@
+--- src/absl/base/internal/unscaledcycleclock.cc.orig	2021-10-02 21:54:01 UTC
++++ src/absl/base/internal/unscaledcycleclock.cc
+@@ -24,8 +24,10 @@
+ #ifdef __GLIBC__
+ #include <sys/platform/ppc.h>
+ #elif defined(__FreeBSD__)
+-#include <sys/sysctl.h>
++#include "absl/base/call_once.h"
+ #include <sys/types.h>
++#include <sys/sysctl.h>
++#include <threads.h>
+ #endif
+ #endif
+