Re: [Boost-build] Generator's target build directory?

Subject: Re: [Boost-build] Generator's target build directory?
From: Alexander Sack (pisymbol_at_[hidden])
Date: 2008-11-10 18:22:49

On Mon, Nov 10, 2008 at 3:53 PM, Vladimir Prus
<vladimir_at_[hidden]> wrote:
> Alexander Sack wrote:
>
>> On Mon, Nov 10, 2008 at 12:20 PM, Vladimir Prus <ghost_at_[hidden]> wrote:
>>> On Monday 10 November 2008 18:34:15 Alexander Sack wrote:
>>>> I am trying to create a simple generator for Google's protobuf tool
>>>> which has the following syntax:
>>>>
>>>> protoc --cpp_out="<some directory>" <sourcefiles>
>>>>
>>>> This will turn:
>>>>
>>>> MyProtoBufs.proto --> MyProtoBufs.pb.cc and MyProtoBufs.pb.h
>>>>
>>>> My issues are:
>>>>
>>>> 1)  I don't know what to put in <some directory> to bjam can pick up
>>>> the resulting CPP source file so the corresponding compilation fails,
>>>> i.e. can I get the current target build (this my main issue)
>>>
>>> Assuming your generator is defined to accept PROTO targets, and generate CPP
>>> and H targets, then inside the action associated with your generator you can use:
>>>
>>>        $(<[1]:D)
>>>
>>> to get the directory where the target should be placed.
>>
>> Using the above I am to get the protoc create the pb.cc file in the
>> right spot (thanks again) and then rename it by just issuing a copy
>> command.  However, now my issue is the generated header file, *.pb.h.
>> Right now its in obviously a variant build directory.  How the heck do
>> I include this file in other targets?   I'm thinking the simple
>> generator model is not going to cut it because of this (so close too).
>
> See:
>
>        http://www.boost.org/boost-build2/doc/html/bbv2/reference/generated_headers.html
>
> and make sure your generator declares "H" as out of outputs.

As always Vladimir, thank you.  I will attempt this....I did infact
worked around this with a simple make target.

-aps