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

[Mats Wichmann]

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.