[boost] Building header files with bjam

From: Paul Hamilton (paul_at_[hidden])
Date: 2003-08-08 09:31:56

I have a need to generate header files which are then subsequently used 
in a source file and built.

If i have a file called "xxx.y", which is used as an input to a program 
to generate "xxx.hpp", and "xxx.hpp" is included in "xxx.cpp" I should 
(I thought) be able to do something like this:

rule Tangle
{
     DEPENDS $(<) : $(>) ;
}

actions Tangle
{
     tanglemyfile $(<) $(>)
}

Tangle xxx.hpp : xxx.y ;

CPP_SOURCES = xxx.cpp ;

lib mylib : $(CPP_SOURCES).cpp
    : <sysinclude>$(PROJECT_ROOT) <sysinclude>$(BOOST_ROOT)
    : debug release
     ;

But when I try all of this in my jamfile, as much as I touch xxx.y, 
xxx.hpp is never being asked to rebuild. basically the "actions" is 
never executed.

What's the right way to do this?

Paul.

---------------------
Paul Hamilton
pHamtec P/L - Software Makers
http://www.phamtec.com/
mailto:paul_at_[hidden]

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