extern const char *os_strsignal(int); /* char to match strsignal in some OS */
#endif
#ifndef os_unsetenv
-extern int os_unsetenv(const char *);
+extern int os_unsetenv(const uschar *);
#endif
#ifndef os_getcwd
-extern char* os_getcwd(char *, size_t);
+extern uschar *os_getcwd(uschar *, size_t);
#endif
/* End of osfunctions.h */