Handle exename on macos (#4071)

Author: MartinDelille

cli/main.cpp

@@ -76,6 +76,12 @@
 static char exename[1024] = {0};
 #endif
 
+#if defined(__APPLE__)
+#include <mach-o/dyld.h>
+
+static char exename[1024] = {0};
+#endif
+
 /**
  * Main function of cppcheck
  *
@@ -95,6 +101,11 @@ int main(int argc, char* argv[])
     GetModuleFileNameA(nullptr, exename, sizeof(exename)/sizeof(exename[0])-1);
     argv[0] = exename;
 #endif
+#if defined(__APPLE__)
+    uint32_t size = sizeof(exename);
+    _NSGetExecutablePath(exename, &size);
+    argv[0] = exename;
+#endif
 // *INDENT-OFF*
 #ifdef NDEBUG
     try {