--- Configure
+++ Configure
@@ -10860,7 +10860,7 @@
     va_start(args, n);
     exit((unsigned long)vsprintf(buf,"%s",args) > 10L);
 }
-int main() { xxx(1, "foo"); }
+int main() { xxx(1, "foo"); return 0; }
 
 #else /* I_VARARGS */
 
@@ -10872,7 +10872,7 @@
     va_start(args);
     exit((unsigned long)vsprintf(buf,"%s",args) > 10L);
 }
-int main() { xxx("foo"); }
+int main() { xxx("foo"); return 0; }
 
 #endif