feat: macOS feasibility incorporation

Justfile

@@ -21,7 +21,7 @@ compile-lib:
     make --directory=probe_src/libprobe all
 
 compile-cli:
-    env --chdir=probe_src/frontend cargo build --release
+    cd probe_src/frontend && cargo build --release
 
 compile-tests:
     make --directory=probe_src/tests/c all

benchmark/unprivileged_bpftrace.c

@@ -57,8 +57,16 @@ sudo chmod 0644 prov.bt
 ./unprivileged_bpftrace.exe log python -c 'print(34)'
  */
 
+#ifdef __linux__
 #define _GNU_SOURCE
 #include <linux/limits.h>
+
+#elif defined(__APPLE__)
+#include <limits.h>
+#else
+#error "Unsupported platform"
+#endif
+
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>