4 dnl Determine whether lstat has the bug that it succeeds when given the
5 dnl zero-length file name argument. The lstat from SunOS4.1.4 and the Hurd
6 dnl (as of 1998-11-01) do this.
8 dnl If it does, then define HAVE_LSTAT_EMPTY_STRING_BUG and arrange to
9 dnl compile the wrapper function.
12 AC_DEFUN(jm_FUNC_LSTAT,
14 AC_REQUIRE([AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK])
15 AC_CACHE_CHECK([whether lstat accepts an empty string],
16 jm_cv_func_lstat_empty_string_bug,
18 # include <sys/types.h>
19 # include <sys/stat.h>
25 exit (lstat ("", &sbuf) ? 1 : 0);
28 jm_cv_func_lstat_empty_string_bug=yes,
29 jm_cv_func_lstat_empty_string_bug=no,
30 dnl When crosscompiling, assume lstat is broken.
31 jm_cv_func_lstat_empty_string_bug=yes)
33 if test $jm_cv_func_lstat_empty_string_bug = yes; then
35 AC_DEFINE_UNQUOTED(HAVE_LSTAT_EMPTY_STRING_BUG, 1,
36 [Define if lstat has the bug that it succeeds when given the zero-length
37 file name argument. The lstat from SunOS4.1.4 and the Hurd as of 1998-11-01)