diff --git a/audio/sfizz/files/patch-external_abseil-cpp_absl_base_internal_unscaledcycleclock.cc b/audio/sfizz/files/patch-external_abseil-cpp_absl_base_internal_unscaledcycleclock.cc
new file mode 100644
index 000000000000..7b0b8cd82099
--- /dev/null
+++ b/audio/sfizz/files/patch-external_abseil-cpp_absl_base_internal_unscaledcycleclock.cc
@@ -0,0 +1,14 @@
+--- external/abseil-cpp/absl/base/internal/unscaledcycleclock.cc.orig	2021-06-16 13:17:13 UTC
++++ external/abseil-cpp/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
+ 
diff --git a/audio/sfizz/files/patch-src_external_atomic__queue_defs.h b/audio/sfizz/files/patch-src_external_atomic__queue_defs.h
index 7060dfbfb388..f0bb602e4b16 100644
--- a/audio/sfizz/files/patch-src_external_atomic__queue_defs.h
+++ b/audio/sfizz/files/patch-src_external_atomic__queue_defs.h
@@ -1,28 +1,39 @@
---- src/external/atomic_queue/defs.h.orig	2020-04-20 01:14:22 UTC
+--- src/external/atomic_queue/defs.h.orig	2020-07-23 22:01:34 UTC
 +++ src/external/atomic_queue/defs.h
 @@ -6,11 +6,15 @@
  
  #include <atomic>
  
 +#if defined(__FreeBSD__) || defined(__DragonFly__)
 +#include <machine/param.h> // for CACHE_LINE_SIZE
 +#endif
 +
  #if defined(__x86_64__) || defined(_M_X64) || \
      defined(__i386__) || defined(_M_IX86)
  #include <emmintrin.h>
  namespace atomic_queue {
 -constexpr int CACHE_LINE_SIZE = 64;
 +//constexpr int CACHE_LINE_SIZE = 64;
  static inline void spin_loop_pause() noexcept {
      _mm_pause();
  }
 @@ -18,7 +22,7 @@ static inline void spin_loop_pause() noexcept {
  #elif defined(__arm__) || defined(__aarch64__)
  // TODO: These need to be verified as I do not have access to ARM platform.
  namespace atomic_queue {
 -constexpr int CACHE_LINE_SIZE = 64;
 +//constexpr int CACHE_LINE_SIZE = 64;
  static inline void spin_loop_pause() noexcept {
  #if (defined(__ARM_ARCH_6K__) || \
       defined(__ARM_ARCH_6Z__) || \
+@@ -37,6 +41,10 @@ static inline void spin_loop_pause() noexcept {
+ #endif
+ }
+ } // namespace atomic_queue
++#elif defined(__powerpc__)
++static inline void spin_loop_pause() noexcept {
++    asm volatile("ori 0,0,0" ::: "memory");
++}
+ #else
+ #error "Unknown CPU architecture."
+ #endif