Added missing includes and prototypes.

@@ -18,6 +18,8 @@
 #if defined(HAVE_CONFIG_H)
 # include <config.h>
 #endif
+#include <sys/types.h>
+#include <sys/stat.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <unistd.h>
@@ -48,3 +50,7 @@ void collect_open_mailbox_file __P ((void));
 int collect_append_file __P ((char *name));
 void collect_create_mailbox __P ((void));
 void collect_drop_mailbox __P ((void));
+int collect_output (void);
+
+void util_error (char *fmt, ...);
+int util_tempfile (char **namep);

@@ -63,10 +63,13 @@ typedef datum DBM_DATUM;
 #endif
 
 #ifdef USE_DBM
+struct stat;
+int mu_dbm_stat (char *name, struct stat *sb);
 int mu_dbm_open __P((char *name, DBM_FILE *db, int flags, int mode));
 int mu_dbm_close __P((DBM_FILE db));
 int mu_dbm_fetch __P((DBM_FILE db, DBM_DATUM key, DBM_DATUM *ret));
 int mu_dbm_insert __P((DBM_FILE db, DBM_DATUM key, DBM_DATUM contents, int replace));
+int mu_dbm_delete (DBM_FILE db, DBM_DATUM key);
 DBM_DATUM mu_dbm_firstkey __P((DBM_FILE db));
 DBM_DATUM mu_dbm_nextkey __P((DBM_FILE db, DBM_DATUM key));
 #endif

@@ -18,6 +18,8 @@
 #ifdef HAVE_CONFIG_H
 # include <config.h>
 #endif
+#include <stdlib.h>
+#include <unistd.h>
 #include <argp.h>
 #include <mh_getopt.h>
 

@@ -22,8 +22,9 @@
 # include <config.h>
 #endif
 
-#include <mh_getopt.h>
+#include <mh.h>
 #include <string.h>
+#include <argcv.h>
 
 struct mh_argp_data
 {