Add WITH_DEBUG_LOG CMake option.

CMakeLists.txt

@@ -1,11 +1,12 @@
 cmake_minimum_required(VERSION 2.8)
 project(xmrig)
 
-option(WITH_LIBCPUID "Use Libcpuid" ON)
-option(WITH_AEON     "CryptoNight-Lite support" ON)
-option(WITH_SUMO     "CryptoNight-Heavy support" ON)
-option(WITH_HTTPD    "HTTP REST API" ON)
-option(BUILD_STATIC  "Build static binary" OFF)
+option(WITH_LIBCPUID  "Use Libcpuid" ON)
+option(WITH_AEON      "CryptoNight-Lite support" ON)
+option(WITH_SUMO      "CryptoNight-Heavy support" ON)
+option(WITH_HTTPD     "HTTP REST API" ON)
+option(WITH_DEBUG_LOG "Enable debug log output" OFF)
+option(BUILD_STATIC   "Build static binary" OFF)
 
 include (CheckIncludeFile)
 include (cmake/cpu.cmake)
@@ -170,7 +171,6 @@ endif()
 
 add_definitions(/D__STDC_FORMAT_MACROS)
 add_definitions(/DUNICODE)
-#add_definitions(/DAPP_DEBUG)
 
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake")
 
@@ -246,5 +246,9 @@ if (BUILD_STATIC)
     set(CMAKE_EXE_LINKER_FLAGS " -static")
 endif()
 
+if (WITH_DEBUG_LOG)
+    add_definitions(/DAPP_DEBUG)
+endif()
+
 add_executable(${PROJECT_NAME} ${HEADERS} ${SOURCES} ${SOURCES_OS} ${SOURCES_CPUID} ${HEADERS_CRYPTO} ${SOURCES_CRYPTO} ${SOURCES_SYSLOG} ${HTTPD_SOURCES})
 target_link_libraries(${PROJECT_NAME} ${UV_LIBRARIES} ${MHD_LIBRARY} ${EXTRA_LIBS} ${CPUID_LIB})