deflate: avoid use of uninitialized variable

(Note emit_match() doesn't currently use the value at all.)

Fixes #4

diff --git a/deflate_medium.c b/deflate_medium.c
index ce6bd97d8f468bf31eb8a2468c50c40ea7571c0a..4beada8d85ae5c52fbbb6b03844e1d1f5a9d956e 100644 (file)
--- a/deflate_medium.c
+++ b/deflate_medium.c
@@ -174,7 +174,7 @@ block_state deflate_medium(deflate_state *s, int flush)
     memset(&next_match, 0, sizeof(struct match));
 
     for (;;) {
-        IPos hash_head;       /* head of the hash chain */
+        IPos hash_head = 0;   /* head of the hash chain */
         int bflush;           /* set if current block must be flushed */
         
         /* Make sure that we always have enough lookahead, except