m4/lstat.m4

   1 # serial 20
   2
   3 # Copyright (C) 1997-2001, 2003-2010 Free Software Foundation, Inc.
   4 #
   5 # This file is free software; the Free Software Foundation
   6 # gives unlimited permission to copy and/or distribute it,
   7 # with or without modifications, as long as this notice is preserved.
   8
   9 dnl From Jim Meyering.
  10
  11 AC_DEFUN([gl_FUNC_LSTAT],
  12 [
  13   AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
  14   dnl If lstat does not exist, the replacement <sys/stat.h> does
  15   dnl "#define lstat stat", and lstat.c is a no-op.
  16   AC_CHECK_FUNCS_ONCE([lstat])
  17   if test $ac_cv_func_lstat = yes; then
  18     AC_REQUIRE([AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK])
  19     if test $ac_cv_func_lstat_dereferences_slashed_symlink = no; then
  20       dnl Note: AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK does AC_LIBOBJ([lstat]).
  21       REPLACE_LSTAT=1
  22     fi
  23     # Prerequisites of lib/lstat.c.
  24     AC_REQUIRE([AC_C_INLINE])
  25   else
  26     HAVE_LSTAT=0
  27   fi
  28 ])