3 # Copyright (C) 1998, 1999, 2001, 2003 Free Software Foundation, Inc.
4 # This file is free software; the Free Software Foundation
5 # gives unlimited permission to copy and/or distribute it,
6 # with or without modifications, as long as this notice is preserved.
10 # Define ST_MTIM_NSEC to be the nanoseconds member of struct stat's st_mtim,
13 AC_DEFUN([AC_STRUCT_ST_MTIM_NSEC],
14 [AC_CACHE_CHECK([for nanoseconds member of struct stat.st_mtim],
15 ac_cv_struct_st_mtim_nsec,
16 [ac_save_CPPFLAGS="$CPPFLAGS"
17 ac_cv_struct_st_mtim_nsec=no
18 # tv_nsec -- the usual case
19 # _tv_nsec -- Solaris 2.6, if
20 # (defined _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED == 1
21 # && !defined __EXTENSIONS__)
22 # st__tim.tv_nsec -- UnixWare 2.1.2
23 for ac_val in tv_nsec _tv_nsec st__tim.tv_nsec; do
24 CPPFLAGS="$ac_save_CPPFLAGS -DST_MTIM_NSEC=$ac_val"
25 AC_TRY_COMPILE([#include <sys/types.h>
26 #include <sys/stat.h>], [struct stat s; s.st_mtim.ST_MTIM_NSEC;],
27 [ac_cv_struct_st_mtim_nsec=$ac_val; break])
29 CPPFLAGS="$ac_save_CPPFLAGS"])
31 if test $ac_cv_struct_st_mtim_nsec != no; then
32 AC_DEFINE_UNQUOTED(ST_MTIM_NSEC, $ac_cv_struct_st_mtim_nsec,
33 [Define to be the nanoseconds member of struct stat's st_mtim,