mandoc_os
arch_valid(const char *arch, enum mandoc_os os)
woptions(char *arg, enum mandoc_os *os_e, int *wstop)
static int woptions(char *, enum mandoc_os *, int *);
enum mandoc_os os_e; /* Check base system conventions. */
struct mparse *mparse_alloc(int, enum mandoc_os, const char *);
mparse_alloc(int options, enum mandoc_os os_e, const char *os_s)
enum mandoc_os os_e; /* Operating system. */
int arch_valid(const char *, enum mandoc_os);