[Scons-users] Checking for specific versions of visual studio

[Bill Deegan]

Can you run with:

set SCONS_MSCOMMON_DEBUG=c:\somefile.log
scons <whatever>
and pastbin the log file?

-Bill

On Tue, Sep 15, 2015 at 9:01 AM, Brian Cody <brian.j.cody at gmail.com> wrote:

> Hey guys, a while ago I asked about how exists() is used for tools and I
> was told it pretty much isn't. We have an scons.workarounds we use to get..
> around things like this. Today it looks like this:
>
> _already_warned_about_tool = set()
>
> def does_tool_exist(env, tool):
>     return SCons.Tool.Tool(tool, [str(SCons.Script.Dir(path)) for path in
> env['toolpath']]).exists(env)
>
> def verify_tool_exists(env, tool):
>     exists = does_tool_exist(env, tool)
>     if not exists:
>         if tool not in _already_warned_about_tool:
>             _already_warned_about_tool.add(tool)
>             sys.stderr.write('*** Tool "' + tool + '" does not exist;
> targets skipped.\n')
>             if env['fail_if_tools_are_unavailable']:
>                 raise
> SCons.Errors.BuildError(errstr='fail_if_tools_are_unavailable is enabled.')
>     return exists
>
> This is used because we have some developers who don't have all tools who
> still want to be able to "build all that I can". Now the issue we're seeing
> is that we create an environment specifically for visual studio 9.0. i.e.
> Environment(tools = ['msvc', 'mslink', 'masm' , 'mslib'],
> MSVC_VERSION='9.0', ......)
>
> With this environment, the above function will successfully tell you if
> visual studio is installed or not, however it will return True even if the
> version is 12.0. At the moment I'm not sure that we can go to 12 with our
> version of the compact framework. Our easier solution would be that this
> function should just return false. Deep in the bowels of the visual studio
> support I see that the "msvc_exists" takes a version number, but the
> exists() in the tool does not attempt to use it. In "msvs_exists" it does
> not allow the same version check.
>
>
> So my leading question: How am I supposed to offer this functionality? If
> this is a half-implemented in SCons, any suggestion on how to solve this
> generically from our standpoint without injecting changes into the SCons
> package?
>
> Thanks
>
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>
>
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