On Tue 07 Aug 2018, Dylan Baker wrote:
> Quoting Bas Nieuwenhuizen (2018-08-07 16:14:33)                               
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> >  anv_extensions_c = custom_target(                                          
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> > @@ -36,10 +37,11 @@ anv_extensions_c = custom_target(                       
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> >    input : ['anv_extensions_gen.py', vk_api_xml],                           
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> >    output : 'anv_extensions.c',                                             
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> >    command : [                                                              
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> > +   'env', 'PYTHONPATH=@0@'.format(join_paths(meson.source_root(), 
> > 'src/vulkan/util/')),                                                       
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> 
> This is really gross, you're adding a dependency on a unix console command. I 
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> know that anv is only built on Unix-like oses, but this will eventually end 
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> being used in some code that needs to run on Windows (or mac, does mac have   
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> env?).                                                                        
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> I know that some people will object, but IMHO a better solution than mucking  
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> with the python path (either through sys.path or through PYTHONPATH, is to    
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> put all of the generators in a src/generators directory and be done with it.  
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> Sure the intel specific bits (for example) aren't in the src/intel folder, 
> that's a small price to avoid having to call env just to run a python script.

Dylan, I think we should avoid introducing complexity in the build
system for the benefit of operating systems not supported by the driver.
That feels like a serious premature optimazation, to me.  Anvil's usage
of ioctls is highly specific to Linux/Unix, will not work on MacOS, and
definitely does not work on Windows.

(By the way, MacOS has the 'env' command).
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