Fixed: Link to freetype when using Qt

--HG--
branch : develop

code/CMakeLists.txt

@@ -324,13 +324,19 @@ IF(WITH_QT5)
       ENDIF()
 
       # freetype is needed since Qt 5.5
-      IF(UNIX)
-        SET(FREETYPE_LIB "${QT_LIBRARY_DIR}/libqtfreetype.a")
-      ELSEIF(WIN32)
-        SET(FREETYPE_LIB "${QT_LIBRARY_DIR}/qtfreetype.lib")
-      ENDIF()
-      IF(EXISTS ${FREETYPE_LIB})
-        SET(QT_LIBRARIES ${QT_LIBRARIES} ${FREETYPE_LIB})
+      FIND_PACKAGE(FreeType)
+
+      IF(FREETYPE_FOUND)
+        SET(QT_LIBRARIES ${QT_LIBRARIES} ${FREETYPE_LIBRARIES})
+      ELSE()
+        IF(UNIX)
+          SET(FREETYPE_LIB "${QT_LIBRARY_DIR}/libqtfreetype.a")
+        ELSEIF(WIN32)
+          SET(FREETYPE_LIB "${QT_LIBRARY_DIR}/qtfreetype.lib")
+        ENDIF()
+        IF(EXISTS ${FREETYPE_LIB})
+          SET(QT_LIBRARIES ${QT_LIBRARIES} ${FREETYPE_LIB})
+        ENDIF()
       ENDIF()
 
       ADD_QT_PLUGIN(accessible qtaccessiblewidgets)