修正未指定安装路径时的默认安装位置的实现

CMakeLists.txt

@@ -13,10 +13,8 @@ if(NOT CMAKE_BUILD_TYPE)
 	set(CMAKE_BUILD_TYPE RelWithDebInfo)
 endif()
 
-# It is not a legal location.
-# Consider to the convention, we install the binary tree in /home
-if(NOT CMAKE_INSTALL_PREFIX)
-	set(CMAKE_INSTALL_PREFIX /home/mesasoft/tfe)
+if (CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+	set (CMAKE_INSTALL_PREFIX "/home/mesasoft/tfe" CACHE PATH "default install path" FORCE )
 endif()
 
 # Global compile options