Merge pull request #2802 from arkpar/qt54-fix

Fixed mix build for qt 5.4

alethzero/CMakeLists.txt

@@ -22,7 +22,7 @@ include_directories(${Boost_INCLUDE_DIRS})
 
 find_package (Qt5WebEngine)
 find_package (Qt5WebEngineWidgets)
-if (APPLE)
+if (APPLE AND (NOT "${Qt5Core_VERSION_STRING}" VERSION_LESS "5.5"))
 # TODO: remove indirect dependencies once macdeployqt is fixed
 	find_package (Qt5WebEngineCore)
 	find_package (Qt5DBus)

mix/CMakeLists.txt

@@ -61,7 +61,7 @@ if (${ETH_HAVE_WEBENGINE})
 	add_definitions(-DETH_HAVE_WEBENGINE)
 	list(APPEND LIBRARIES "Qt5::WebEngine")
 endif()
-if (APPLE)
+if (APPLE AND (NOT "${Qt5Core_VERSION_STRING}" VERSION_LESS "5.5"))
 	list(APPEND LIBRARIES "Qt5::WebEngineCore")
 	list(APPEND LIBRARIES "Qt5::DBus")
 	list(APPEND LIBRARIES "Qt5::PrintSupport")