Support for Microsoft Visual C++ Compiler for Python 2.7

[petrushy]

Microsoft has a package of compilers for python for windows:
http://www.microsoft.com/en-us/download/details.aspx?id=44266

The installer seems to install by default to current user\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python\9.0\vcvarsall.bat

if installed by command line for all users it installs to:
C:\Program Files (x86)\Common Files\Microsoft\Visual C++ for Python\9.0\vcvarsall.bat

conda-build/windows.py assumes it's located under a specific place at C:\Program Files(x86)\Micros... (line 67-69).
Are there some setting to override this, otherwise I would propose to have such?

[asmeurer]

I don't know if a way of overriding is necessary. We just need to update the code to look in the other location in addition to the current one.

[tpn]

What would be even more awesome is wrapping the entire thing as a conda package, then we could simply specify it as a dep in recipes (or maybe implicitly have it as a dep if platform is windows && python == 2.7).

[asmeurer]

Can it be installed in a relocatable way?

[tpn]

No idea.

[petrushy]

I have tried with the msiexec command and setting variables such as INSTALLDIR and TARGETDIR but it seems not to respond to that.

[msarahan]

Closed by #861

[github-actions]

Hi there, thank you for your contribution!

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Please open a new issue if needed.

Thanks!