Re: [Boost-build] Newbie question to make rule

Subject: Re: [Boost-build] Newbie question to make rule
From: Piotr Jachowicz (pjachowi_at_[hidden])
Date: 2010-06-19 16:46:56

Hello,

> Message: 3
> Date: Fri, 18 Jun 2010 14:31:13 -0700
> From: Steven Watanabe <watanabesj_at_[hidden]>
> To: "Boost.Build developer's and user's list"
>        <boost-build_at_[hidden]>
> Subject: Re: [Boost-build] Newbie question to make rule
> Message-ID: <4C1BE5A1.7060209_at_[hidden]>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> AMDG
>
> Piotr Jachowicz wrote:
>>> Piotr Jachowicz wrote:
>>>
>>>> make schemagen.sch : schemagen.imp : @schemagen ;
>>> What about:
>>>
>>> actions schemagen
>>> {
>>>    cd $(>:D)
>>>    schemagen $(>:D=)
>>> }
>>>
>>
>> Thank you, it works perfectly fine.
>>
>> Can I have subsequent question? Why bjam keep regenerating schema.cxx
>> even if schema.imp did not change? And how to stop it?
>>
>
> The problem is that Boost.Build thinks that it's building a file
> called schemagen.sch.  Try either adding
>    touch $(<)
> to actually create this file, or change the target to
> make schema.cxx : ... ;

It is building file schemagen.sch. Script schemagen gets schemagen.imp
as input and produces two files: schemagen.sch and schemagen.cxx.

I think bjam looks for schemagen.sch in /lib/bin/gcc-4.2.1/debug
directory, instead of /lib (where it is generated). Is there remedy
for that?

>
> In Christ,
> Steven Watanabe
>
>
>
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-- 
Piotr Jachowicz