> +#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;
1) In the comment you say 'if filename is NULL' but in the code you use
the (hacky) workaround code also if filename != NULL. Why?
2) When freopen returns NULL for success, does it set errno = 0, or does
it leave errno untouched? Can you find out, please, by using a test program
like
errno = 42;
FILE *result = freopen (NULL, mode, stream);
printf ("errno = %d\n", errno);
If it's the latter case (it leaves errno untouched), you need to add an
'errno = 0;' statement before the freopen call.
Bruno
