#ifdef __CYGWIN__
static string
-dos_to_posix (string file_name)
+dos_to_posix (const string &file_name)
{
char buf[PATH_MAX] = "";
char s[PATH_MAX] = {0};
}
string
-dir_name (string const file_name)
+dir_name (const string &file_name)
{
string s = file_name;
s = slashify (s);