X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=m4%2Frmdir-errno.m4;h=7693bc70b46b066b69c373d4e3294cfc201bba1f;hb=e52fa80b73cf84d7e5472aeb43ead4e25dbd5989;hp=2907e7b34afd943a3f4cd732d772c69396aeae53;hpb=865e7d6ee26f7b04d116928ca758f9b1342fe07e;p=gnulib.git

diff --git a/m4/rmdir-errno.m4 b/m4/rmdir-errno.m4
index 2907e7b34..7693bc70b 100644
--- a/m4/rmdir-errno.m4
+++ b/m4/rmdir-errno.m4
@@ -1,4 +1,4 @@
-#serial 7
+#serial 8
 
 # Copyright (C) 2000, 2001, 2005, 2006 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
@@ -12,6 +12,7 @@
 # test runs a test to determine the actual numeric value.
 AC_DEFUN([gl_FUNC_RMDIR_NOTEMPTY],
 [dnl
+  AC_CHECK_HEADERS_ONCE(unistd.h)
   AC_CACHE_CHECK([for rmdir-not-empty errno value],
     gl_cv_func_rmdir_errno_not_empty,
     [
@@ -21,6 +22,9 @@ AC_DEFUN([gl_FUNC_RMDIR_NOTEMPTY],
       AC_TRY_RUN([
 #include <stdio.h>
 #include <errno.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
 	int main ()
 	{
 	  FILE *s;