--- pgp/src/zdeflate.c	2018/04/24 16:39:33	1.1.1.3
+++ pgp/src/zdeflate.c	2018/04/24 16:40:25	1.1.1.4
@@ -141,6 +141,7 @@ typedef unsigned IPos;
 #else
   uch    far * near window = NULL;
   Pos    far * near prev   = NULL;
+  static void far *__window, *__prev;
   static Pos    far * near head;
 #endif
 
@@ -274,8 +275,8 @@ void lm_init (pack_level, flags)
 
     /* Use dynamic allocation if compiler does not like big static arrays: */
 #ifdef DYN_ALLOC
-	window = (uch far*) fcalloc(WSIZE,   2*sizeof(uch));
-	prev   = (Pos far*) fcalloc(WSIZE,     sizeof(Pos));
+	__window = window = (uch far*) fcalloc(WSIZE*2*sizeof(uch)+16, 1);
+	__prev = prev = (Pos far*) fcalloc(WSIZE*sizeof(Pos)+16, 1);
 	head   = (Pos far*) fcalloc(HASH_SIZE, sizeof(Pos));
 
 	if (window == NULL || prev == NULL || head == NULL) {
@@ -326,8 +327,8 @@ void lm_init (pack_level, flags)
 void lm_free()
 {
 #ifdef DYN_ALLOC
-	free(window);
-	free(prev);
+	free(__window);
+	free(__prev);
 	free(head);
 	window = NULL;
 	prev = head = NULL;