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--- arg/arg.orig 2013-10-02 13:57:01 UTC +++ arg/arg @@ -5,6 +5,9 @@ Singleton Class built around getopt() and getopt_long() (3) */ +#if defined(__FreeBSD__) || defined(__DragonFly__) +#include <cerrno> +#endif #include <string> #include <vector>