diff --git a/cmirror.c b/cmirror.c
index 1e1f5d5..987d3e4 100644
--- a/cmirror.c
+++ b/cmirror.c
@@ -36,7 +36,7 @@
 static const char *log_prefix;
 static int noisy_abort;
 
-static void warn(const char *restrict fmt, ...) {
+static G_GNUC_PRINTF(1, 2) void warn(const char *restrict fmt, ...) {
     if (log_prefix)
         fprintf(stderr, "%s: ", log_prefix);
     va_list ap;
@@ -45,7 +45,7 @@ static void warn(const char *restrict fmt, ...) {
     va_end(ap);
 }
 
-static G_NORETURN void die(const char *restrict fmt, ...) {
+static G_NORETURN G_GNUC_PRINTF(1, 2) void die(const char *restrict fmt, ...) {
     if (fmt) {
         if (log_prefix)
             fprintf(stderr, "%s: ", log_prefix);
@@ -181,7 +181,7 @@ static struct FileInfo *fileinfo_lstat(char *path) {
         fi->target = g_malloc(sb.st_size + 1);
         int res = readlink(path, fi->target, sb.st_size+1);
         if (res == -1)
-            die("readlink %s: %M\n", path);
+            die("readlink %s: %m\n", path);
         if (res > sb.st_size)
             die("readlink %s: target string to long\n", path);
         fi->target[res] = '\0';
@@ -302,7 +302,7 @@ static char data_buffer[10240+2];
 
 static void fileop_mknod(char *path, char type, dev_t rdev) {
     if (fileop_debug)
-        warn("fileop: mknod %s %c %d\n", path, type, rdev);
+        warn("fileop: mknod %s %c %lu\n", path, type, rdev);
     if (fileop_noop)
         return;
     mode_t mode;
@@ -410,7 +410,7 @@ static void fileop_lchown(uid_t uid, gid_t gid, char *path) {
 
 static void fileop_lmtime(time_t mtime, char *path) {
     if (fileop_debug)
-        warn("fileop: lmtime %d %s\n", mtime, path);
+        warn("fileop: lmtime %ld %s\n", mtime, path);
     if (fileop_noop)
         return;
     struct timespec timespec[2] = { { 0, UTIME_OMIT } , { mtime, 0 } };
@@ -501,7 +501,7 @@ static void add_clean_dir(char *dir) {
     GError *error;
     GDir *d = g_dir_open(dir, 0, &error);
     if  (!d)
-        die("%s %s\n", error->message);
+        die("%s: %s\n", dir, error->message);
     const char *entry;
     while ( (entry = g_dir_read_name(d)) ) {
         char *path = g_strdup_printf("%s/%s", dir, entry);
@@ -515,7 +515,7 @@ static void add_clean_dir(char *dir) {
 }
 
 static void out_of_the_way(FileInfo *fi) {
-    if (fi->type == 'D') {
+    if (fi->type == 'D' && !fileop_noop) {
         char *deleteme = g_strdup_printf("%s.deleteme", fi->name);
         fileop_mv(fi->name, deleteme);
         CLEAN_DIRS = g_slist_prepend(CLEAN_DIRS, deleteme);
@@ -544,10 +544,10 @@ static ssize_t receive_record(FILE *in, char *buffer, size_t buflen) {
         return 0;
     unsigned int len = ntohs(*(uint16_t *)b);
     if (len > buflen)
-        die("data overrun %d > %d\n", len, buflen);
+        die("data overrun %u > %lu\n", len, buflen);
     size_t l2 = fread(buffer, 1, len, in);
     if (l2 != len)
-        die("data underrun %d != %d\n", l1, l2);
+        die("data underrun %lu != %lu\n", l1, l2);
     return len;
 }
 
@@ -565,7 +565,7 @@ static void receive_file(FILE *in, char *filename, off_t expected_size, mode_t p
         if(l2 == -1)
             die("%s: %m\n", filename);
         if (l2 != l1)
-            die("%s: short write\n");
+            die("%s: short write\n", filename);
         expected_size -= l2;
     }
     fdatasync(fd);
@@ -913,16 +913,19 @@ static void slave(char *slave_path) {
                 fileop_rm(path);
             }
         }
-        GSList *d = CLEAN_DIRS;
-        while (d) {
-            if (!quiet)
-                warn("rm -r %s\n", d->data);
-            d = d->next;
-        }
     }
     if (reduce)
         return;
 
+    GSList *d = CLEAN_DIRS;
+    while (d) {
+        char *path = (char *)d->data;
+        if (!quiet)
+            warn("rm -r %s\n", path);
+        fileop_rmdir_recurse(path);
+        d = d->next;
+    }
+
     DIR_MTIME_QUEUE = g_list_reverse(DIR_MTIME_QUEUE);
     for (GList *e = DIR_MTIME_QUEUE ; e != NULL ; e = e->next )  {
         DirMtime *mt = e->data;
@@ -937,7 +940,7 @@ static void slave(char *slave_path) {
         if (statbuf.st_mtime == mt->mtime)
             continue;
         if (!quiet)
-            warn("fix directory mtime of %s -> %d\n", mt->path, mt->mtime);
+            warn("fix directory mtime of %s -> %ld\n", mt->path, mt->mtime);
         if (!fileop_noop) {
             struct timespec timespec[2] = { { 0, UTIME_OMIT } , { mt->mtime, 0 } };
             if (utimensat(AT_FDCWD, mt->path, timespec, AT_SYMLINK_NOFOLLOW) == -1)
@@ -1257,7 +1260,7 @@ static void master(char *master_path, char *target) {
         unsetenv("SSH_ORIGINAL_COMMAND");
 
         execvp(args->pdata[0], (char **)args->pdata);
-        die("exec %s: %m\n", args->pdata[0]);
+        die("exec %s: %m\n", (char *)args->pdata[0]);
     }
     else if (pid == -1)
         die("fork: %m");