[Boost-build] [V2] Annoying warnings when using bjam for 3rdparty build

From: Juergen Hunold (juergen.hunold_at_[hidden])
Date: 2007-02-05 14:01:54

Hi !

I'm using V2 for building my own applications and try to convince my 
colleagues to use it, too.

Unfortunately, there are annoying warnings from now 4 boost modules 
creeping up in my build-logs like

----begin copy ---

searching for python.exe in C:/Python24/bin 
warning: Graph library does not contain optional GraphML reader. 
note: to enable GraphML support, set EXPAT_INCLUDE and EXPAT_LIBPATH to 
the 
note: directories containing the Expat headers and libraries, 
respectively. 
warning: skipping optional Message Passing Interface (MPI) library. 
note: to enable MPI support, add "using mpi ;" to user-config.jam. 
note: to suppress this message, pass "--without-mpi" to bjam. 
note: otherwise, you can safely ignore this message. 

--- end copy ---

Those are
1) Boost.Python 
2) BGL GraphML Reader
3) MPI support
4) Boost.Regex ICU support.

I'd like those warnings to appear _only_ when those libraries/modules 
are actually _built_ or used, but not when their Jamfiles are _parsed_.

I'd really appreciate it if someone with more bjam knowledge than me 
would fix it (at least in HEAD, I can then post the patch to my 
colleagues...).

Yours,

Jürgen

-- 
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