+string os::internal_path(string const &p) {
+ return p;
+}
+
+bool os::is_absolute_path(string const & p)
+{
+ return (!p.empty() && p[0] == '/');
+}
+
+// returns a string suitable to be passed to fopen/popen when
+// reading a file
+char const * os::read_mode()
+{
+ return "r";
+}