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

[Bill Deegan]

There was some difference between VS2017 community and pro.
Regardless fix in master should resolve and will be in 3.0.4 (soon).

-Bill

On Fri, Jan 18, 2019 at 1:34 PM Damien <damien at khubla.com> wrote:

> It's probably us and our build setup.  We build for Win & Lin, 32 & 64,
> Intel, AMD & ARM, all C++/Fortran maths and algorithms, custom optimisation
> flags everywhere, and a partridge in a pear tree.
>
> Damien
>
> On 1/18/2019 2:03 PM, Eric Fahlgren wrote:
>
> I just upgraded from 3.0.1 and don't see this problem.  Using VS 2017, Win
> 10, Py 3.7, finds the compiler just fine, although my Visual Studio hasn't
> been updated for 5-6 months...
>
> (I did hit a catch on the renaming of Scripts/scons.py to just
> Scripts/scons, though.)
>
> On Fri, Jan 18, 2019 at 9:29 AM Bill Deegan <bill at baddogconsulting.com>
> wrote:
>
>> 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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>>>
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