Bugfixes

* libmu_cfg/init.c (mu_libcfg_parse_config): Do not produce error
if user configuration file is absent.
* libmu_sieve/sieve.l: Include config.h in %top section.
* mh/mh_alias.l: Likewise.
* mimeview/mimetypes.l: Likewise.
* mailbox/cfg_lexer.l: Likewise.
(mu_get_config): Call mu_cfg_tree_postprocess.

@@ -133,6 +133,8 @@ mu_libcfg_parse_config (mu_cfg_tree_t **ptree)
 	      mu_cfg_tree_postprocess (tmp, flags);
 	      mu_cfg_tree_union (&tree, &tmp);
 	    }
+	  else if (rc == ENOENT)
+	    rc = 0;
 	  free (file_name);
 	}
     }

-%{
+%top {
 /* GNU Mailutils -- a suite of utilities for electronic mail
    Copyright (C) 1999, 2000, 2001, 2002, 2004, 2005,
    2007, 2008, 2009 Free Software Foundation, Inc.
@@ -21,7 +21,9 @@
 #ifdef HAVE_CONFIG_H
 # include <config.h>
 #endif  
+}
 
+%{
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>  

-%{
+%top {
 /* cfg_lexer.l -- default lexer for Mailutils configuration files
    Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
 
@@ -18,6 +18,9 @@
 #ifdef HAVE_CONFIG_H
 # include <config.h>
 #endif
+}
+
+%{
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/types.h>
@@ -359,8 +362,12 @@ mu_get_config (const char *file, const char *progname,
   mu_cfg_tree_t *parse_tree;
   int rc = mu_cfg_parse_file (&parse_tree, file, flags);
   if (rc == 0)
-    rc = mu_cfg_tree_reduce (parse_tree, progname, progparam, flags,
-			     target_ptr);
+    {
+      rc = mu_cfg_tree_postprocess (&parse_tree, flags);
+      if (rc == 0)
+	rc = mu_cfg_tree_reduce (parse_tree, progname, progparam, flags,
+				 target_ptr);
+    }
 
   mu_cfg_destroy_tree (&parse_tree);
 

-%{
+%top {
 /* GNU Mailutils -- a suite of utilities for electronic mail
    Copyright (C) 2003, 2005, 2006, 2007, 2009 Free Software Foundation, Inc.
 
@@ -17,6 +17,12 @@
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
    MA 02110-1301 USA */
 
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+}
+
+%{
 #include <mh.h>
 #include <mh_alias.h>
 #include <sys/stat.h>

-%{
+%top {
 /* GNU Mailutils -- a suite of utilities for electronic mail
    Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc.
 
@@ -20,7 +20,9 @@
 #ifdef HAVE_CONFIG_H
 # include <config.h>
 #endif
+}
 
+%{
 #include <unistd.h>
 #include <stdio.h>
 #include <sys/stat.h>