Merge euidaccess etc. from coreutils.

[gnulib.git] / m4 / readdir.m4

diff --git a/m4/readdir.m4 b/m4/readdir.m4
index d851b0f..2c4bbab 100644 (file)
--- a/m4/readdir.m4
+++ b/m4/readdir.m4
@@ -1,4 +1,4 @@
-#serial 3
+#serial 5
 
 dnl SunOS's readdir is broken in such a way that rm.c has to add extra code
 dnl to test whether a NULL return value really means there are no more files
@@ -12,10 +12,10 @@ dnl Define HAVE_WORKING_READDIR if readdir does *not* have this problem.
 
 dnl Written by Jim Meyering.
 
-AC_DEFUN(jm_FUNC_READDIR,
+AC_DEFUN([jm_FUNC_READDIR],
 [dnl
 AC_REQUIRE([AC_HEADER_DIRENT])
-AC_CHECK_HEADERS(string.h)
+AC_CHECK_HEADERS_ONCE(string.h)
 AC_CACHE_CHECK([for working readdir], jm_cv_func_working_readdir,
   [dnl
   # Arrange for deletion of the temporary directory this test creates, in
@@ -50,6 +50,9 @@ AC_CACHE_CHECK([for working readdir], jm_cv_func_working_readdir,
      (Basename[0] == '.' && (Basename[1] == '\0' \
                             || (Basename[1] == '.' && Basename[2] == '\0')))
 
+/* Don't try to use replacement mkdir; it wouldn't resolve at link time.  */
+#   undef mkdir
+
     static void
     create_300_file_dir (const char *dir)
     {
@@ -123,7 +126,7 @@ AC_CACHE_CHECK([for working readdir], jm_cv_func_working_readdir,
   jm_cv_func_working_readdir=no)])
 
   if test $jm_cv_func_working_readdir = yes; then
-    AC_DEFINE_UNQUOTED(HAVE_WORKING_READDIR, 1,
-[Define if readdir is found to work properly in some unusual cases. ])
+    AC_DEFINE(HAVE_WORKING_READDIR, 1,
+      [Define if readdir is found to work properly in some unusual cases. ])
   fi
 ])