From 45858c0a7838ee1b620eb4fd9210e1e0b84b6b4d Mon Sep 17 00:00:00 2001
From: Lefteris Karapetsas <lefteris@refu.co>
Date: Mon, 15 Jun 2015 13:28:58 +0200
Subject: [PATCH] OpenCL in MacosX does not like static variables

Should fix #2172
---
 libethash-cl/ethash_cl_miner.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libethash-cl/ethash_cl_miner.cpp b/libethash-cl/ethash_cl_miner.cpp
index 6c2f8269a..b160cdd94 100644
--- a/libethash-cl/ethash_cl_miner.cpp
+++ b/libethash-cl/ethash_cl_miner.cpp
@@ -429,7 +429,8 @@ void ethash_cl_miner::search(uint8_t const* header, uint64_t target, search_hook
 		};
 		queue<pending_batch> pending;
 
-		static uint32_t const c_zero = 0;
+		// this can't be a static because in MacOSX OpenCL implementation a segfault occurs when a static is passed to OpenCL functions
+		uint32_t const c_zero = 0;
 
 		// update header constant buffer
 		m_queue.enqueueWriteBuffer(m_header, false, 0, 32, header);