An independent .m4 file for each module.

[gnulib.git] / m4 / readdir.m4

diff --git a/m4/readdir.m4 b/m4/readdir.m4
index 03ac331..2c4bbab 100644 (file)
--- a/m4/readdir.m4
+++ b/m4/readdir.m4
@@ -1,4 +1,4 @@
-#serial 4
+#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
@@ -15,7 +15,7 @@ dnl Written by Jim Meyering.
 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
@@ -127,6 +127,6 @@ AC_CACHE_CHECK([for working readdir], jm_cv_func_working_readdir,
 
   if test $jm_cv_func_working_readdir = yes; then
     AC_DEFINE(HAVE_WORKING_READDIR, 1,
-[Define if readdir is found to work properly in some unusual cases. ])
+      [Define if readdir is found to work properly in some unusual cases. ])
   fi
 ])