libgfortran.h (GFC_ITOA_BUF_SIZE, [...]): Define.
* libgfortran.h (GFC_ITOA_BUF_SIZE, GFC_XTOA_BUF_SIZE,
GFC_OTOA_BUF_SIZE, GFC_BTOA_BUF_SIZE): Define.
(gfc_itoa, xtoa): Add 2 extra arguments.
* runtime/environ.c: Include stdio.h.
(check_buffered): Use sprintf.
* runtime/error.c: Include assert.h.
(gfc_itoa, xtoa): Add 2 extra arguments, avoid using static
buffers.
(st_printf, st_sprintf): Adjust callers.
* io/write.c (otoa, btoa): Add 2 extra arguments, avoid using
static buffers.
(write_int, write_decimal): Add 2 extra arguments to conv
function pointer, adjust caller.
(write_integer): Adjust gfc_itoa caller.
* io/unit.c (get_array_unit_len): Return 0 rather than NULL.
* io/read.c (read_f): Remove spurious pointer dereference.
From-SVN: r104855