[Scons-users] Fwd: Re: has overriding C++ compiler paths and names changed with Python 3.x?

Bill Deegan bill at baddogconsulting.com
Fri Jan 18 12:28:56 EST 2019


Damien,

O.k. Look out for 3.0.4 coming in the next week..

On Thu, Jan 17, 2019 at 9:23 PM Damien <damien at khubla.com> wrote:

> I meant to send this to the list earlier instead of just Mats.
>
> -------- Forwarded Message --------
> Subject: Re: [Scons-users] has overriding C++ compiler paths and names
> changed with Python 3.x?
> Date: Thu, 17 Jan 2019 19:35:53 -0700
> From: Damien <damien at khubla.com> <damien at khubla.com>
> To: Mats Wichmann <mats at wichmann.us> <mats at wichmann.us>
>
> OK, the 3.0.1 release works and the tip of Master also works.  3.0.3
> doesn't work.
>
> Damien
>
> On 1/17/2019 5:16 PM, Mats Wichmann wrote:
>
> On 1/17/19 4:36 PM, Damien wrote:
>
> Hi all,
>
> For probably ten years we've run a custom build setup, overriding SCons
> default behaviour for compiler selection, library flags etc depending on
> what OS we're on and what compiler versions we need to use.  We've been
> on 3.0.1 with Python 2.7 for a year now.  We're just setting up a CI/QC
> server with 3.0.3 and Python 3.7.2.  SCons is now complaining that there
> are no C++ compilers installed, even though we have set the path
> explicitly.  This is with Visual Studio 2017, v15.9.5, it just came out
> a few days ago.
>
> We now get the missing compiler message:  scons: warning: No version of
> Visual Studio compiler found - C/C++ compilers most likely not set
> correctly
>
> In the SCons environment, we set the following in a .py file that's
> called by the SConscript from SConstruct:
>
> cxxcompilerpath = ["C:/Program Files (x86)/Microsoft Visual
> Studio/2017/Community/VC/Tools/MSVC/14.16.27023/bin/Hostx64/x64"]
> env.PrependENVPath('PATH', cxxcompilerpath)
> env['CXX'] = 'cl.exe'
>
> That cxxcompilerpath exists and cl.exe is there.  This has worked for
> years for us.
>
> We get the standard command prompt "can't find it" message:
>
> 'cl.exe' is not recognized as an internal or external command,
> operable program or batch file.
>
> SCons was installed with "python setup.py install", not with pip.
>
> Any suggestions?
>
> can you try the current git head possibly? there's an ongoing wrestling
> match with this stuff, and more changes landed after 3.0.3 dropped.
>
>
>
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