--- a/os/client.c	2023-01-27 01:56:50.000000000 +0800
+++ b/os/client.c	2025-07-08 11:02:23.000000000 +0800
@@ -74,9 +74,17 @@
 #endif
 
 #ifdef __APPLE__
+#include <AvailabilityMacros.h>
+#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
 #include <dispatch/dispatch.h>
 #include <errno.h>
 #include <sys/sysctl.h>
+#define USE_DISPATCH 1
+#else
+#define USE_DISPATCH 0
+#endif
+#else
+#define USE_DISPATCH 0
 #endif
 
 /**
@@ -136,7 +144,7 @@
 void
 DetermineClientCmd(pid_t pid, const char **cmdname, const char **cmdargs)
 {
-#if !defined(__APPLE__)
+#if !USE_DISPATCH
     char path[PATH_MAX + 1];
     int totsize = 0;
     int fd = 0;
@@ -150,7 +158,7 @@
     if (pid == -1)
         return;
 
-#if defined (__APPLE__)
+#if USE_DISPATCH
     {
         static dispatch_once_t once;
         static int argmax;