gnulib/import/m4/openat.m4

   1 # serial 45
   2 # See if we need to use our replacement for Solaris' openat et al functions.
   3
   4 dnl Copyright (C) 2004-2016 Free Software Foundation, Inc.
   5 dnl This file is free software; the Free Software Foundation
   6 dnl gives unlimited permission to copy and/or distribute it,
   7 dnl with or without modifications, as long as this notice is preserved.
   8
   9 # Written by Jim Meyering.
  10
  11 AC_DEFUN([gl_FUNC_OPENAT],
  12 [
  13   AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
  14   AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
  15   AC_CHECK_FUNCS_ONCE([openat])
  16   AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK])
  17   case $ac_cv_func_openat+$gl_cv_func_lstat_dereferences_slashed_symlink in
  18   yes+*yes)
  19     ;;
  20   yes+*)
  21     # Solaris 9 has *at functions, but uniformly mishandles trailing
  22     # slash in all of them.
  23     REPLACE_OPENAT=1
  24     ;;
  25   *)
  26     HAVE_OPENAT=0
  27     ;;
  28   esac
  29 ])
  30
  31 # Prerequisites of lib/openat.c.
  32 AC_DEFUN([gl_PREREQ_OPENAT],
  33 [
  34   AC_REQUIRE([gl_PROMOTED_TYPE_MODE_T])
  35   :
  36 ])