fix compilation issues on macOS

README.md

@@ -41,23 +41,14 @@ docker run --rm -v $PWD:/workspace liberize/ssc:latest -s test.sh test
 </details>
 
 <details>
-<summary>For macOS without Homebrew</summary>
+<summary>For macOS</summary>
 <p>
 
 * Xcode command line tools
 
 </p>
 </details>
 
-<details>
-<summary>For macOS with Homebrew</summary>
-<p>
-
-* gcc, perl, binutils
-
-</p>
-</details>
-
 <details>
 <summary>For Android Termux</summary>
 <p>

src/untraceable.h

@@ -12,7 +12,22 @@ FORCE_INLINE void check_debugger() {
     }
 }
 
-#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)
+#elif defined(__APPLE__)
+#include <sys/sysctl.h>
+
+FORCE_INLINE void check_debugger() {
+    struct kinfo_proc info;
+    info.kp_proc.p_flag = 0;
+    size_t size = sizeof(info);
+    int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, getpid() };
+    if (sysctl(mib, 4, &info, &size, nullptr, 0) == 0 &&
+        (info.kp_proc.p_flag & P_TRACED) != 0) {
+        //perror(OBF("debugger present!"));
+        exit(1);
+    }
+}
+
+#elif defined(__linux__) || defined(__FreeBSD__)
 #include <sys/wait.h>
 #include <sys/ptrace.h>
 #include <unistd.h>

ssc

@@ -81,7 +81,7 @@ if [ "$PTHREAD" = 1 -a "$STATIC" = 1 ]; then
 fi
 
 if [ -n "$EMBED_FILE" -o -n "$USE_RC4" ]; then
-  if [ "$SYSTEM" != Cygwin ]; then
+  if [ "$SYSTEM" != Cygwin -a "$SYSTEM" != Mac ]; then
     LDFLAGS="$LDFLAGS -Wl,-z,noexecstack"
   fi
 fi