--- a/squashfs-tools/mksquashfs.c
+++ b/squashfs-tools/mksquashfs.c
@@ -735,13 +735,13 @@ void cache_block_put(struct file_buffer
 			+ (((char *)A) - data_cache)))
 
 
-inline void inc_progress_bar()
+static inline void inc_progress_bar()
 {
 	cur_uncompressed ++;
 }
 
 
-inline void update_progress_bar()
+static inline void update_progress_bar()
 {
 	pthread_mutex_lock(&progress_mutex);
 	pthread_cond_signal(&progress_wait);
@@ -749,7 +749,7 @@ inline void update_progress_bar()
 }
 
 
-inline void waitforthread(int i)
+static inline void waitforthread(int i)
 {
 	TRACE("Waiting for thread %d\n", i);
 	while(thread[i] != 0)
@@ -3358,7 +3358,7 @@ struct inode_info *lookup_inode(struct s
 }
 
 
-inline void add_dir_entry(char *name, char *pathname, struct dir_info *sub_dir,
+static inline void add_dir_entry(char *name, char *pathname, struct dir_info *sub_dir,
 	struct inode_info *inode_info, struct dir_info *dir)
 {
 	if((dir->count % DIR_ENTRIES) == 0) {