Re: [Boost-build] Choosing clang toolset on Windows

From: Edward Diener (eldiener_at_[hidden])
Date: 2019-07-23 12:23:58

On 7/23/2019 6:17 AM, Steven Watanabe via Boost-build wrote:
> AMDG
> 
> On 7/22/19 8:17 PM, Edward Diener via Boost-build wrote:
>> If I have on Windows in my user-config.jam
>>
>> import toolset ;
>> using clang-win : 8.0 : E:/programming/bat/cp_clangwin80.bat : etc. ;
>> using clang : 8.0 : E:/programming/bat/cp_clang80.bat : etc. ;
>>
> 
> Flip the order.  `using clang` is the same as `using clang-linux`
> The first one listed is the default.
> 

Ok, thanks ! But why does a 'default' matter when the two toolsets above 
are different ?

Does not that mean that if I flip them that 'b2 toolset=clang-win-8.0' 
chooses the 'clang' toolset over the 'clang-win' toolset if the first 
one listed is the default from what you are saying ? This is not what I 
want.

Like I said if I change the 'clang' toolset definition to 'clang-linux', 
then invoking 'b2 toolset=clang-linux' or 'b2 toolset=clang-win' chooses 
the correct toolset, but I do not understand why it should not work as 
above. I guess I hate to have to type the extra letters of 'clang-linux' 
as opposed to just 'clang' when it seems it should work as is.

>> and my invoocation is:
>>
>> b2 toolset=clang-8.0 somejam.jam
>>
>> the clang-win toolset is chosen to compile/link the tests in somejam.jam
>> instead of the clang toolset. I realize I can solve this by changing the
>> clang toolset to clang-linux, and then invoking b2 as:
>>
>> b2 toolset=clang-linux-8.0 somejam.jam
>>
>> but why should I have to do this ?
>>
>> If I just have in my user-config.jam
>>
>> import toolset ;
>> using clang : 8.0 : E:/programming/bat/cp_clang80.bat : etc. ;
>>
>> then
>>
>> b2 toolset=clang-8.0 somejam.jam
>>
>> does use the toolset I have.
>>