diff -Nur busybox-1.12.3/findutils/Config.in busybox-1.12.3-find/findutils/Config.in
--- busybox-1.12.3/findutils/Config.in	2008-09-28 20:04:28.000000000 +0200
+++ busybox-1.12.3-find/findutils/Config.in	2009-01-06 22:24:46.086215240 +0100
@@ -81,6 +81,14 @@
 	help
 	  Support the 'find -inum' option for searching by inode number.
 
+config FEATURE_FIND_EMPTY
+	bool "Enable -empty option matching empty files and directories"
+	default y
+	depends on FIND
+	help
+	  Support the 'find -empty' option for searching empty files 
+	  and directories.
+
 config FEATURE_FIND_EXEC
 	bool "Enable -exec option allowing execution of commands"
 	default y
diff -Nur busybox-1.12.3/findutils/find.c busybox-1.12.3-find/findutils/find.c
--- busybox-1.12.3/findutils/find.c	2008-09-28 20:04:28.000000000 +0200
+++ busybox-1.12.3-find/findutils/find.c	2009-01-06 23:33:53.201386585 +0100
@@ -93,6 +93,7 @@
 USE_FEATURE_FIND_CONTEXT(ACTS(context, security_context_t context;))
 USE_FEATURE_FIND_PAREN(  ACTS(paren, action ***subexpr;))
 USE_FEATURE_FIND_PRUNE(  ACTS(prune))
+USE_FEATURE_FIND_EMPTY(  ACTS(empty))
 USE_FEATURE_FIND_DELETE( ACTS(delete))
 USE_FEATURE_FIND_EXEC(   ACTS(exec,  char **exec_argv; unsigned *subst_count; int exec_argc;))
 USE_FEATURE_FIND_GROUP(  ACTS(group, gid_t gid;))
@@ -318,6 +319,34 @@
 	return exec_actions(ap->subexpr, fileName, statbuf);
 }
 #endif
+#if ENABLE_FEATURE_FIND_EMPTY
+ACTF(empty)
+{
+	DIR *d;
+	struct dirent *dp;
+	bool empty = TRUE;
+
+	if (S_ISDIR(statbuf->st_mode)) {
+		d = opendir(fileName);
+		if (d == NULL)
+			bb_simple_perror_msg(fileName);
+		for (dp = readdir(d); dp; dp = readdir(d)) {
+			if (dp->d_name[0] != '.' ||
+				(dp->d_name[1] != '\0' &&
+				(dp->d_name[1] != '.' ||
+				dp->d_name[2] != '\0'))) {
+					empty = FALSE;
+					break;
+			}
+		}
+		closedir(d);
+		return(empty);
+	} else if (S_ISREG(statbuf->st_mode))
+		return (statbuf->st_size == 0);
+	else
+		return FALSE;
+}
+#endif
 #if ENABLE_FEATURE_FIND_SIZE
 ACTF(size)
 {
@@ -459,6 +488,7 @@
 	USE_FEATURE_FIND_PRINT0( PARM_print0    ,)
 	USE_FEATURE_FIND_DEPTH(  PARM_depth     ,)
 	USE_FEATURE_FIND_PRUNE(  PARM_prune     ,)
+	USE_FEATURE_FIND_EMPTY(  PARM_empty     ,)
 	USE_FEATURE_FIND_DELETE( PARM_delete    ,)
 	USE_FEATURE_FIND_EXEC(   PARM_exec      ,)
 	USE_FEATURE_FIND_PAREN(  PARM_char_brace,)
@@ -492,6 +522,7 @@
 	USE_FEATURE_FIND_PRINT0( "-print0\0" )
 	USE_FEATURE_FIND_DEPTH(  "-depth\0"  )
 	USE_FEATURE_FIND_PRUNE(  "-prune\0"  )
+	USE_FEATURE_FIND_EMPTY(  "-empty\0"  )
 	USE_FEATURE_FIND_DELETE( "-delete\0" )
 	USE_FEATURE_FIND_EXEC(   "-exec\0"   )
 	USE_FEATURE_FIND_PAREN(  "(\0"       )
@@ -610,6 +641,12 @@
 			(void) ALLOC_ACTION(prune);
 		}
 #endif
+#if ENABLE_FEATURE_FIND_EMPTY
+		else if (parm == PARM_empty) {
+			USE_FEATURE_FIND_NOT( invert_flag = 0; )
+			(void) ALLOC_ACTION(empty);
+		}
+#endif
 #if ENABLE_FEATURE_FIND_DELETE
 		else if (parm == PARM_delete) {
 			need_print = 0;
diff -Nur busybox-1.12.3/include/usage.h busybox-1.12.3-find/include/usage.h
--- busybox-1.12.3/include/usage.h	2008-09-28 20:04:26.000000000 +0200
+++ busybox-1.12.3-find/include/usage.h	2009-01-07 00:07:49.832669156 +0100
@@ -1140,6 +1140,8 @@
      "\n	-group NAME	File belongs to group NAME (numeric group ID allowed)") \
 	USE_FEATURE_FIND_DEPTH( \
      "\n	-depth		Process directory name after traversing it") \
+	USE_FEATURE_FIND_EMPTY( \
+     "\n	-empty		File or directory is empty") \
 	USE_FEATURE_FIND_SIZE( \
      "\n	-size N[bck]	File size is N (c:bytes,k:kbytes,b:512 bytes(def.))." \
      "\n			+/-N: file size is bigger/smaller than N") \