diff --git a/src/compat/convert.c b/src/compat/convert.c
index 0ed1ba2..e70d2f8 100644
--- a/src/compat/convert.c
+++ b/src/compat/convert.c
@@ -73,7 +73,7 @@ convert( config_t *box )
 	FILE *fp;
 	msg_t *msgs;
 	DB *db;
-	int i, ret, fd, uidval, maxuid, bl, uid, rmsgs, nmsgs, uv[2];
+	int i, ret, fd, uidval, maxuid, uid, rmsgs, nmsgs, uv[2];
 	unsigned u;
 	struct stat sb;
 	char buf[_POSIX_PATH_MAX], diumname[_POSIX_PATH_MAX],
@@ -160,7 +160,7 @@ convert( config_t *box )
 	rmsgs = 0;
 	nmsgs = 0;
 	for (i = 0; i < 2; i++) {
-		bl = nfsnprintf( buf, sizeof(buf), "%s/%s/", mboxdir, subdirs[i] );
+		nfsnprintf( buf, sizeof(buf), "%s/%s/", mboxdir, subdirs[i] );
 		if (!(d = opendir( buf ))) {
 			perror( "opendir" );
 		  err4:
diff --git a/src/drv_imap.c b/src/drv_imap.c
index 573f601..4c27bcf 100644
--- a/src/drv_imap.c
+++ b/src/drv_imap.c
@@ -303,7 +303,7 @@ init_ssl_ctx( imap_store_t *ctx )
 	imap_t *imap = ctx->imap;
 	imap_store_conf_t *conf = (imap_store_conf_t *)ctx->gen.conf;
 	imap_server_conf_t *srvc = conf->server;
-	SSL_METHOD *method;
+	const SSL_METHOD *method;
 	int options = 0;
 
 	if (srvc->use_tlsv1 && !srvc->use_sslv2 && !srvc->use_sslv3)
diff --git a/src/drv_maildir.c b/src/drv_maildir.c
index e6cf08d..4383ec2 100644
--- a/src/drv_maildir.c
+++ b/src/drv_maildir.c
@@ -641,7 +641,7 @@ maildir_scan( maildir_store_t *ctx, msglist_t *msglist )
 				else
 					u = ru = strchr( entry->base, ':' );
 				fnl = (u ?
-					nfsnprintf( buf + bl, sizeof(buf) - bl, "%s/%.*s,U=%d%s", subdirs[entry->recent], u - entry->base, entry->base, uid, ru ) :
+					nfsnprintf( buf + bl, sizeof(buf) - bl, "%s/%.*s,U=%d%s", subdirs[entry->recent], (int)(u - entry->base), entry->base, uid, ru ) :
 					nfsnprintf( buf + bl, sizeof(buf) - bl, "%s/%s,U=%d", subdirs[entry->recent], entry->base, uid ))
 					+ 1 - 4;
 				memcpy( nbuf, buf, bl + 4 );
diff --git a/src/sync.c b/src/sync.c
index 5a5d247..a2fe95e 100644
--- a/src/sync.c
+++ b/src/sync.c
@@ -119,7 +119,7 @@ dump_box( store_t *ctx )
 	if (Debug)
 		for (msg = ctx->msgs; msg; msg = msg->next) {
 			make_flags( msg->flags, fbuf );
-			printf( "  message %d, %s, %d\n", msg->uid, fbuf, msg->size );
+			printf( "  message %d, %s, %lu\n", msg->uid, fbuf, msg->size );
 		}
 }