Re: [Boost-build] generating headers out of Jamfile

Subject: Re: [Boost-build] generating headers out of Jamfile
From: Oliver Kowalke (oliver.kowalke_at_[hidden])
Date: 2011-01-29 00:44:48

Am 29.01.2011 00:13, schrieb Steven Watanabe:
> AMDG
>
> On 1/28/2011 2:56 PM, Oliver Kowalke wrote:
>> how can I generate headers out of a Jamfile (if possible)?
>>
>> current Jamfile:
>>
>> alias sources
>> : xyz_windows.cpp
>> : <architecture>abc
>> <target-os>windows
>> <toolset>msvc
>> ;
>>
>> alias sources
>> : xyz_posix.cpp
>> : <architecture>uvw
>> <toolset>gcc
>> ;
>>
>> explicit sources ;
>>
>> lib boost_xyz
>> : sources
>> : <link>shared:<define>BOOST_XYZ_DYN_LINK=1
>> ;
>>
>> boost-install boost_xyz ;
>>
>> I'd like to generate header xyz.hpp out of some template files
>> xyz_windows.hpp and xyz_posix.hpp.
>>
>
> Use the make rule. Something like this:
>
> actions generate-xyz {
> # shell commands here. $(>) is the source, $(<) is the target
> }
>
> alias xyz-source.hpp : xyz_windows.hpp : /properties/ ;
> make xyz.hpp : xyz-source.hpp : : @generate-xyz ;

Ok -thx

What happens when I use multiple configurations
> from the same Boost tree. (I guarantee you that
> I will do this. I would consider it a showstopper
> if it doesn't work.)

The lib requires properties <architecture>,<instruction-set> and 
<address-model>
  - all three are optional and not set by boost.build. therefore its 
required that the user specifies those properties at command line.
I believe no other boost library uses this properties yet and if a 
future lib will do I'm sure it will require the same values.

Oliver