From 2439ba5b9c7ec12e4b9ff968877136816c72aeb5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Janiszewski?= <janisozaur@gmail.com>
Date: Sun, 24 Jan 2016 21:01:31 +0100
Subject: [PATCH] Fallback to non-compressed sv6 on broken builders

---
 src/util/util.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/util/util.c b/src/util/util.c
index 14ba1c4b3e..d2f2b35d5a 100644
--- a/src/util/util.c
+++ b/src/util/util.c
@@ -375,6 +375,14 @@ unsigned char *util_zlib_deflate(unsigned char *data, size_t data_in_size, size_
 			buffer_size *= 2;
 			out_size = buffer_size;
 			buffer = realloc(buffer, buffer_size);
+		} else if (ret == Z_STREAM_ERROR) {
+			log_error("Your build is shipped with broken zlib. Please use the official build.");
+			log_error("Falling back to non-compressed sv6.");
+			buffer = realloc(buffer, data_in_size);
+			memcpy(buffer, data, data_in_size);
+			out_size = data_in_size;
+			ret = Z_OK;
+			break;
 		}
 		ret = compress(buffer, &out_size, data, data_in_size);
 	} while (ret != Z_OK);