Merge pull request #40 from ethereum-mining/cleanups

Cleanups

cmake/gcc-4.8.cmake → cmake/gcc-5.cmake

@@ -1,5 +1,5 @@
-set(CMAKE_C_COMPILER gcc-4.8)
-set(CMAKE_CXX_COMPILER g++-4.8)
+set(CMAKE_C_COMPILER gcc-5)
+set(CMAKE_CXX_COMPILER g++-5)
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_STANDARD_REQUIRED True)
 set(CMAKE_CXX_EXTENSIONS Off)

libethcore/EthashCUDAMiner.cpp

@@ -196,7 +196,7 @@ void EthashCUDAMiner::workLoop()
 		}
 
 		uint64_t upper64OfBoundary = (uint64_t)(u64)((u256)w.boundary >> 192);
-		uint64_t startN;
+		uint64_t startN = w.startNonce;
 		if (w.exSizeBits >= 0)
 			startN = w.startNonce | ((uint64_t)index() << (64 - 4 - w.exSizeBits)); // this can support up to 16 devices
 		m_miner->search(w.headerHash.data(), upper64OfBoundary, *m_hook, (w.exSizeBits >= 0), startN);