--- ode/demo/demo_piston.cpp.orig 2013-08-19 17:48:05 UTC +++ ode/demo/demo_piston.cpp @@ -659,7 +659,7 @@ int main (int argc, char **argv) { int j = i+1; if ( j+1 > argc || // Check if we have enough arguments - argv[j] == '\0' || // We should have a path here + argv[j][0] == '\0' || // We should have a path here argv[j][0] == '-' ) // We should have a path not a command line Help (argv); else