Re: [Boost-build] naive usage of bootstrap.sh

Subject: Re: [Boost-build] naive usage of bootstrap.sh
From: Stefan Seefeld (stefan_at_[hidden])
Date: 2016-10-25 07:37:16

On 25.10.2016 05:20, Vladimir Prus wrote:
> On 24-Oct-16 11:51 PM, Stefan Seefeld wrote:
>
>>>> At the very least I think bootstrap.sh should not accept options
>>>> such as
>>>> --with... or --without...
>>>
>>> Why? Again, maybe nobody cares any longer, but I think it was requested
>>> by some folks some time ago? Could you suggest a criteria which options
>>> should be accepted and which not?
>>>
>>> If bootstrap.sh is made to accept no options, to to pass all options
>>> to b2, then we'd have too add an option to b2 to save the passed
>>> options
>>> for future use.
>>
>> So you are saying that `./bootstrap.sh <options> && ./b2` and
>> `./bootstrap.sh && ./b2 <options>` are strictly equivalent (modulo the
>> fact that the latter won't save the options) ? I think that's worth
>> documenting clearly.
>
> Not quite; I said "If bootstrap.sh is made", so that's a conditional
> clause - it's not entirely true now, and I was suggesting that maybe
> your confusion is due to the fact that bootstrap.sh has some options
> that are identical to b2 options, but not 100% equivalent.

Indeed, yes.

>
>> Other than that, I think it's a matter of separating concerns: the
>> "bootstrap.sh" script is concerned with generating (compiling) the build
>> tool for the given platform, while "b2" invokes the build. Configuring
>> the the build is (in my mind at least) a concern of the build tool,
>> rather than the tool that builds the build tool. Coming from the
>> autotools world with its separation of "configure" and "make" I can see
>> the appeal of separating the two, but given that it's b2's job to do
>> some configure checks, I simply found it confusing that bootstrap.sh
>> would have any business with configuring, too.
>
> The above plan would make boostrap.sh a pure 'build-b2-if-not-present'
> wrapper over b2, so hopefully will address your concerns?

Yes. Thanks !

        Stefan

>
> - Volodya
>
>
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