build binary eggs for Windows x86 (64-bit)

[daira]

This is one of a collection of tickets about binary eggs that need to be built for specific platforms.

See src/allmydata/_auto_deps.py for Tahoe-LAFS trunk's current dependencies, and ​https://tahoe-lafs.org/source/tahoe-lafs/deps/tahoe-dep-eggs/README.html for the eggs that have been built and uploaded.

[daira]

64-bit Windows is currently missing Twisted >= 11.0 and pycrypto >= 2.4.1 eggs for Python 2.6. On the other hand, we recommend using Python 2.7.x on Windows.

[daira]

A pyOpenSSL 0.13 egg is a particular priority because of #2005.

[daira]

We need a pyOpenSSL 0.13.1 egg for 64-bit Windows before the 1.11 release.

We also need a Twisted 12.2.0 egg, because the existing ​12.3.0 egg is incompatible with our current _auto_deps.py. (12.3.0 depends on pywin32; see #2028.)

[daira]

The "Microsoft Visual C++ 2008 Express with SP1" compiler needed to compile extension modules for Python 2.7, is available from ​https://go.microsoft.com/?linkid=7729279 (linked from ​this Stack Overflow answer). More recent versions are not compatible.

After installing this, run Microsoft Update.

[daira]

Current notes on how to build OpenSSL:

• Install 64-bit Windows 7. (I used Windows 7 Ultimate in a VirtualBox? under Linux.)

• Fix security settings, download Chrome, apply Windows updates.

• Install Microsoft Visual Studio Express 2008 SP1.

• Apply Microsoft updates. (Requires setting the update site to use compatibility mode in IE.)

• download ActivePerl? 5.20.1 for Windows (64-bit) from ​https://www.activestate.com/activeperl/downloads (​https://downloads.activestate.com/ActivePerl/releases/5.20.1.2000/ActivePerl-5.20.1.2000-MSWin32-x64-298557.msi)

• add C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64 to the PATH, *after* all entries starting C:\Program Files (x86)\Microsoft Visual Studio 9.0 (*yes I know*).

• run these commands:

  perl Configure VC-WIN64A --prefix=C:\Build-OpenSSL-VC-64
  ms\do_win64a
  
  edit ms\nt.mak and make this change:
  
  MKLIB=lib /machine:x64 /nologo
  
  nmake -f ms\nt.mak
  

[warner]

This is no longer part of the openitp grant, but we still need eggs to enable the 'quickstart' instructions to work on windows.

[daira]

For this platform, we still need:

• Twisted 12.1.0 (done)
• pyOpenSSL 0.13.1 with OpenSSL 1.0.1m (done)

[daira]

Works for me, in a clean checkout, with no compilation.

The instructions for building OpenSSL and pyOpenSSL are at docs/build/build-pyOpenSSL.rst​.

[daira]

I now need to build a Twisted >= 13.0.0 (probably 15.1.0) egg, in order for the #2416 branch to work on 64-bit Windows systems without a compiler.