* src/insets/ExternalSupport.C
(updateExternal): Avoid computing crc of a directory as this leads
to a crash on Cygwin.
* lib/configure.py:
Use a python script to get the current date in order to avoid
a stalling condition with the date command on Win32.
* lib/scripts/date.py:
New python script.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_1_4_X@17177 a592a061-630c-0410-9148-cb99ea01b6c8
