Merge pull request #1756 from subtly/installethash

install ethash if ethash-cl not built

libethash/CMakeLists.txt

@@ -43,3 +43,7 @@ add_library(${LIBRARY} ${FILES})
 if (CRYPTOPP_FOUND)
 	TARGET_LINK_LIBRARIES(${LIBRARY} ${CRYPTOPP_LIBRARIES})
 endif()
+
+if (NOT ETHASHCL)
+	install( TARGETS ${LIBRARY} RUNTIME DESTINATION bin ARCHIVE DESTINATION lib LIBRARY DESTINATION lib )
+endif ()