[Boost-build] <implicit-dependency> on generated header does not add include path

Subject: [Boost-build] <implicit-dependency> on generated header does not add include path
From: Samuel Debionne (samuel.debionne_at_[hidden])
Date: 2014-04-16 11:55:06

Hello all,
As far as I understand the documentation
http://www.boost.org/boost-build2/doc/html/bbv2/reference/generated_headers.html

the path to the build directory of a generated header should be
automatically added to include path. It seems not to be the case.

I have something along those lines :

app/Jamfile.v2

  exe app : app.c : <implicit-dependency>/gen ;

where app.c has a #include <generated.h>

gen/Jamfile.v2

  use foo-generator ;

  lib generated.foo ;

where foo-generator generates both generated.cpp and generated.h

When compiling app.c, "generated.h" is not found in the include path
(which is a build directory).

I have try to add <dependency>/gen without more success.
Am I missing something ?
Samuel