--- dovecot-2.3.2.1/src/auth/mycrypt.c~	2018-04-30 15:52:04.000000000 +0200
+++ dovecot-2.3.2.1/src/auth/mycrypt.c	2018-08-10 12:30:04.828556600 +0200
@@ -14,6 +14,7 @@
 #  define _XPG6 /* Some Solaris versions require this, some break with this */
 #endif
 #include <unistd.h>
+#include <crypt.h>
 
 #include "mycrypt.h"