[Python-Dev] Build Notes for building trunk with Visual Studio 2008 Express Edition (original) (raw)

M.-A. Lemburg mal at egenix.com
Fri Nov 23 17:49:27 CET 2007

On 2007-11-23 16:59, Christian Heimes wrote:

Paul Moore wrote:

ssl ----

Christian has been making changes to allow this to build without Perl, so I gave it a try. I used openssl 0.9.8g, which I extracted to the build directory (I noticed afterwards that this is the same version as in Python svn, so I could have used the svn external!) I needed to download nasm (nasm.sf.net) version 2.00rc1, and rename nasm.exe to nasmw.exe and put it on my PATH. Build succeeded, no issues. You still need Perl if you are using an official download of openssl. I've added the pre-build assembly and makefiles in the svn external at svn.python.org

Why not include the prebuilt libraries of all external libs in SVN as well ?

BTW: Are you including the patented algorithms in the standard OpenSSL build or excluding them ?

The patented ones are RC5, IDEA and MDC2:

http://svn.python.org/view/external/openssl-0.9.8g/README

Here's a previous discussion:

http://mail.python.org/pipermail/python-dev/2006-August/068055.html

Here's what MediaCrypt has to say about requiring a license for IDEA:

http://www.mediacrypt.com/_contents/20_support/204010_faq_bus.asp

Note that in the case of IDEA, any commercial use will require getting a license to the patented algorithm first (costs start at EUR 15 for a single use license).

I'd opt for not including these algorithms, as it's just too easy for the user to overlook this license requirement.

-- Marc-Andre Lemburg eGenix.com

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