* libc/posix/opendir.c (opendir): Change code to check
for HAVE_FCNTL before calling fcntl.
* libc/search/hash.c (hash_open): Ditto.
* libc/search/hash_page.c (open_tmp): Ditto.
* libc/reent/Makefile.am: Add fcntlr.c.
* libc/reent/Makefile.in: Regenerated.
* libc/reent/fcntlr.c: New file.
* libc/stdio/fdopen.c (_fdopen_r): Change to call _fcntl_r
instead of _fcntl when HAVE_FCNTL flag is set.
* libc/syscalls/sysfcntl.c (fcntl): Check for HAVE_FCNTL flag
to see if _fcntl or _fcntl_r should be called. If flag is not
set, default to ENOSYS stub.
