further pop_mx_ng work

[apps/madmutt.git] / sort.h

diff --git a/sort.h b/sort.h
index 50c017b..d4f9241 100644 (file)
--- a/sort.h
+++ b/sort.h
@@ -7,6 +7,9 @@
  * please see the file GPL in the top level source directory.
  */
 
+#ifndef MUTT_SORT_H
+#define MUTT_SORT_H
+
 #define SORT_DATE      1       /* the date the mail was sent. */
 #define SORT_SIZE      2
 #define SORT_SUBJECT   3
@@ -43,3 +46,5 @@ WHERE short SortAlias INITVAL (SORT_ALIAS);
 WHERE short PgpSortKeys INITVAL (SORT_ADDRESS);
 
 extern const struct mapping_t SortMethods[];
+
+#endif