Fixed GBRom test

diff --git a/GBRom.cc b/GBRom.cc
index a0d7e9d5961ed4a539adb150ccedd44780393a57..4cccf7f2f1e6dfb8c3a3e2a1e6f6bd3275aa1bab 100644 (file)
--- a/GBRom.cc
+++ b/GBRom.cc
@@ -76,8 +76,15 @@ GBRom *read_gbrom(std::string filename)
 }
 
 #ifdef TEST_GBROM
+
+#include <cstdlib>
+
 int main(int argc, char *argv[])
 {
+       if (argc != 2) {
+               std::cout << "Usage: " << argv[0] << " romname" << std::endl;
+               std::exit(EXIT_FAILURE);
+       }
        GBRom *rom=read_gbrom(argv[1]);
 }
 #endif