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Subject: Re: [Boost-build] bjam failing to detect some file dependencies
From: Rene Rivera (grafikrobot_at_[hidden])
Date: 2010-06-11 09:16:51

On 6/11/2010 2:17 AM, Engelbert Tijskens wrote:
> We are using boost-build now for more than a year to build our
> research codes for different platforms and compilers and we are
> generally satisfied with it. Sometimes boost-build fails to detect
> dependencies between files. We encountered two examples: 1. When we
> are using file iteration (BOOST_PP_FILENAME_x) in boost.preprocessor
> the dependency between the file describing the file iteration and the
> file using it is not detected and a change in the former does not
> result in recompilation. 2. when compiling our CUDA code something
> similar happens though it is not yet entirely clear what. Some of the
> .cuh files depend on .h files and the compiled code does not always
> reflect the changes made.
> Is there a way to explicitly add dependencies between files in a bjam
> project?

Preprocessor based includes does present a challenge to the regex based
parsing BBv2 does. The best/easiest solution I've found is to decorate
the code itself with "real" includes to the files that would normally be
PP included but do it as a comment (i.e. self documenting code). For

// #include "pp.hpp"

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