Re: MSVC is broken for x86 builds on x64 hosts

Michael,

Which version of SCons, which python?
Is something broken for you?
Or are you just asserting that the current logic is not correct?

-Bill

On Thu, Mar 28, 2019 at 7:04 AM Michael Hartmann <
[email protected]> wrote:

> The code to support Visual Studio tries to construct a path to cl.exe form
> the host arch (amd64) and the target arch (x86):
>
>
>
> vc.py:get_host_target()
>
> vc.py:get_host_target() req_target_platform:x86
>
> _check_cl_exists_in_vc_dir(): host platform amd64, target platform x86
>
> _check_cl_exists_in_vc_dir(): checking for cl.exe at C:\Program Files
> (x86)\Microsoft Visual
> Studio\2017\WDExpress\VC\Tools\MSVC\14.14.26428\bin\Hostx64\x86\cl.exe
>
> find_vc_pdir no compiler found 14.1
>
> trying to find VC 14.0
>
> find_vc_dir(): found VC in registry: C:\Program Files (x86)\Microsoft
> Visual Studio 14.0\VC\
>
> found VC 14.0
>
> vc.py:get_host_target()
>
> vc.py:get_host_target() req_target_platform:x86
>
> _check_cl_exists_in_vc_dir(): host platform amd64, target platform x86
>
> _check_cl_exists_in_vc_dir(): checking for cl.exe at C:\Program Files
> (x86)\Microsoft Visual Studio 14.0\VC\bin\amd64_x86\cl.exe
>
> find_vc_pdir no compiler found 14.0
>
> trying to find VC 14.0Exp
>
> find_vc_dir(): no VC registry key
> 'Microsoft\\VCExpress\\14.0\\Setup\\VC\\ProductDir'
>
> find_vc_pdir return None for ver 14.0Exp
>
>
>
> The problem is: Visual Studio is always a x86 application. The compiler
> for a x86 target is not a cross compiler and is found in VC\bin, not
> VC\bin\amd64_x86.
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