PR target/16135
* acinclude.m4 (LIBGFOR_TARGET_ILP32): New check.
* configure.ac: Include LIBGFOR_TARGET_ILP32.
* configure: Regenerate.
* config.h.in: Likewise.
* libgfortran.h: Provide default definitions for C99 types
on ILP32 targets that don't have them.
PR target/17999
* configure.ac: Check for snprintf.
* configure: Regenerate.
* config.h.in: Likewise.
* intrinsics/date_and_time.c (date_and_time): Do not
use snprinf if it is not available.
* io/write.c (output_float): Likewise.
From-SVN: r90964
