--- cvs-1.12.13.orig/debian/patches/90zlib-read-compressed.diff
+++ cvs-1.12.13/debian/patches/90zlib-read-compressed.diff
@@ -0,0 +1,11 @@
+--- cvs-1.12.13/src/zlib.c~	3 Jun 2005 18:26:09 -0000	1.31
++++ cvs-1.12.13/src/zlib.c	27 Oct 2005 17:59:49 -0000
+@@ -229,7 +229,7 @@ compress_buffer_input (void *closure, ch
+ 	   would fetch all the available bytes, and at least one byte.  */
+ 
+ 	status = (*cb->buf->input) (cb->buf->closure, bd->text,
+-				    need, BUFFER_DATA_SIZE, &nread);
++				    need ? 1 : 0, BUFFER_DATA_SIZE, &nread);
+ 
+ 	if (status == -2)
+ 	    /* Don't try to recover from memory allcoation errors.  */