[Boost-build] a few bjam questions (local/global <define>, alias, <os> and 'stage')

From: Dirk Griffioen (dirk_at_[hidden])
Date: 2007-09-02 08:30:44

Hi All,

I have a few bjam questions - if anyone could give me some pointers, 
that would be very much appriciated ...

*1) local/global define*

lib my_odbc
  : [ obj a : a.cpp ]
    [ obj b : b.cpp ]
  :<define>ODBC
  ;

the define is not local so it is not used when compiling, I dont like 
having to set the define on both objs - is it possible to set it once?

*2) alias*

I have 2 targets that are 90% alike, the only difference is they link to 
1 different library. Now I specify 2 targets which are basically copies. 
Is it possible to define a general target once and specialize it for the 
actual case:

exe base : main.cpp lib-general ;

alias exe-a  : base lib-a ;
alias exe-b  : base lib-b ;

At the moment base is compiled/linked, this fails because some of the 
symbols is in either lib_a or lib_b

*3) os detection*

The property <os>NT is defined, this is the only value allowed. However, 
I'd like

exe my_exe : main.cpp : <os>NT <define>GREAT ;
exe my_exe : main.cpp : <os>LINUX <define>BETTER ;

Can I do this?

*4) stage rename*

I could'nt find this one:

stage deliver : exe_a : <location>a <rename>base ;

In other words, I'd like to give a name to an install target on 
installation.

Regards, Dirk Griffioen

-- 
CodeShop BV
Wenckebachweg 150-B
1096 AB Amsterdam
www.code-shop.com
[phone]