PR libfortran/21185
* runtime/compile_options.c (set_options): Fix typo.
* runtime/main.c (store_exe_path): If getcwd is not available,
don't use it.
* intrinsics/getcwd.c: Same thing here.
* io/unix.c (fallback_access): New fallback function for access.
(fix_fd): Don't use dup if it's not available.
* configure.ac: Check for dup and getcwd.
* configure: Regenerate.
* config.h.in: Regenerate.
From-SVN: r128512
2515e5a7a0