[Boost-build] Specific platform source

Subject: [Boost-build] Specific platform source
From: Paulo Márcio Figueiredo Alves (pauloalves1986_at_[hidden])
Date: 2010-07-05 15:56:05

I have this hierarchy on my project:

  /
    projectA/
      build/
        *jamfile*
      win/
        *a.ccp*
      mac/
        *a.cpp*
      *some.cpp*
*
*
    projectB/
      build/
        *jamfile*
      win/
        *b.cpp*
      mac/
        *b.cpp*
      *some.cpp*
*
*
    *jamroot*

I'd like to know, how to write a rule in my *jamroot* that gets the right
specific platform sources ? And I *don't* want to call this rule in every *
jamfile*.

Thank you.