Adding Google Flags-like command-line option parsing, though implemented in C, to the main executable. The code is ported from Granary2.

examples/Fixture.cpp

@@ -36,7 +36,8 @@ TEST_F(MyTest, Something) {
   ASSUME_NE(x, 0);
 }
 
-int main(void) {
+int main(int argc, char *argv[]) {
+  DeepState_InitOptions(argc, argv);
   return DeepState_Run();
 }