The modification is add additional checking for whether need renew the immediate file workspace database, the renew reason maybe:
The renew reason maybe:
1) If user force to renew;
2) If user do not force renew, and
a) If the time of last modified python source is newer than database file;
b) If the time of last modified frozen executable file is newer than database file, the executable file is build.exe in window and build in Linux/Unix/OSX
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8615
6f19259b-4bc3-4df7-8a09-
765794883524