From 6c18bfe10fe7406f473411bcac069f30d9a10c62 Mon Sep 17 00:00:00 2001
From: dmiller <dmiller@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Mon, 11 Nov 2019 14:41:36 +0000
Subject: [PATCH] Guard some symbols for ancient (pre-2004) versions of zlib

---
 nse_zlib.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/nse_zlib.cc b/nse_zlib.cc
index 5a422ed7d..20cd6e0c6 100644
--- a/nse_zlib.cc
+++ b/nse_zlib.cc
@@ -961,8 +961,12 @@ LUALIB_API int luaopen_zlib(lua_State *L)
 
     PUSH_LITERAL(FILTERED)
     PUSH_LITERAL(HUFFMAN_ONLY)
+#ifdef Z_RLE
     PUSH_LITERAL(RLE)
+#endif
+#ifdef Z_FIXED
     PUSH_LITERAL(FIXED)
+#endif
     PUSH_LITERAL(DEFAULT_STRATEGY)
 
     PUSH_NUMBER(MINIMUM_MEMLEVEL, 1)