I don't see why the workaround must be in freopen-safer.c. freopen-safer has
freopen as a prerequisite, so it can assume that freopen doesn't have the bug in
question.
+#ifdef __KLIBC__
+ FILE *result = freopen (filename, mode, stream);
+
+ /* On OS/2 kLIBC, freopen() returns NULL even if it is successful
+ if filename is NULL. */
+ if (!result && !errno)
+ result = stream;
+
+ return result;
+#else
return freopen (filename, mode, stream);
+#endif
This should be refactored so that there's only one call to freopen, to avoid
duplicating the code.
