[Boost-build] Building Shared Library

From: Jared Riley (jkriley_at_[hidden])
Date: 2008-03-27 22:15:02

Hi,

I'm attempting to convert a project from Make to Boost.Build (2.0-m12). 
  The output of the project is a shared library.

The directory structure of the project is something like this:

top
|
--> sub1
|   |
|   --> sub11
|   |     |
|   |     --> a.cpp
|   |     --> b.cpp
|   |
|   --> sub12
|         |
|         --> c.cpp
|         --> d.cpp
|
--> sub2

Currently, the makefile creates a directory top/build, and compiles 
*.cpp into that directory.  Then it links top/build/*.o into top.so and 
it's done.

Now, what I tried to do with Boost.Build, and I can't get to work the 
way I want is the following:
--------
top/sub1/sub11/Jamfile:
lib sub11 : [ glob *.cpp ] : <link>static ;

top/sub1/Jamfile:
lib sub1 : sub11 sub12 : <link>static ;

top/Jamfile
lib top : sub1 sub2 : <link>shared ;
--------

What I was trying to do was to have a static library for each sub 
directory.  The top directory would combine every library below it and 
become a shared library.

If I try to do this, it works fine as long as I leave it with 
<link>shared in every Jamfile.  The problem then is I get about 40
  shared libraries that aren't usable by other things.

If I change it to <link>static as shown above, I get "warn: Unable to 
construct ./sub1" and nothing gets built.

Thanks in advance for any help,
Jared