Attention Windows developers: do not upgrade Cygwin to version 3.5.0

[Ilmari Lauhakangas]

Unfortunately Cygwin 3.5.0 has a change that causes LibreOffice builds 
to fail with messages like this:

321 [main] sh 1280 dofork: child 1288 - died waiting for dll loading, 
errno 11

Please hold off on upgrading to Cygwin 3.5.0.

If you have already installed Cygwin 3.5.0, run the Cygwin installer 
again. In the screen "Select Packages", change the version of the cygwin 
package from 3.5.0 to 3.4.10 and finish the installation.

At this moment, the root cause of this problem is not known.

Another important note about 3.5.0 is found on Cygwin's home page: 
"Cygwin 3.4.10 was the last Cygwin version supporting Windows 7, Windows 
8, Windows Server 2008 R2 and Windows Server 2012."

Ilmari