Re: [boost] [bcp] dependency problem?

From: Bjørn Roald (bjorn_at_[hidden])
Date: 2007-10-23 19:37:44

Eric Niebler wrote:
> I'm playing around with Bjørn's --namespace option and it seems to work
> well. 
cool,  :-)

> I've run into one problem with bcp, though, having to do with
> regex. The docs say this:
>
>   
>> bcp boost/regex.hpp /foo
>>
>> Copies boost/regex.hpp and all dependencies including the regex
>> source code (in libs/regex/src) and build files (in libs/regex/build)
>> to /foo.  Does not copy the regex documentation,  test, or example
>> code.
>>     
>
> But this doesn't copy all the files needed to build regex. For instance, 
> it doesn't copy boost/regex/concepts.hpp, which is required by the regex 
> makefiles.
>
> I don't really understand the bcp source code, but I've discovered that 
> if I add the following "special" dependency to add_path.cpp, it works:
>
>    std::pair<fs::path, fs::path>("boost/regex.hpp", "boost/regex"),
>
> Is this is the right fix?
>
>   
I am not sure, but I think tis basically assure everything in 
boost/regex directory is copied if you need boost/regex.hpp.  I.e. not 
only those files found by dependency scanning of #include.  So if there  
are  stuff like:

 #  include BOOST_REGEX_USER_CONFIG

which I found in boost/regex/config.hpp
which is included from boost/regex.hpp

you got it...

So I think your fix is Ok,  -- but John will be the judge.

-- 
Bjørn