[Boost-build] DLL <use> question

From: Phillip Seaver (phil_at_[hidden])
Date: 2006-08-29 13:58:12

I've got a setup like this, where the executable needs the usage 
requirements (includes, defines) of a DLL, but doesn't want to link 
against it. 

lib a : a/a.cpp : <link>static : : <include>a ;
lib b : b/b.cpp a : <link>static : : <include>b ;
lib c : c/c.cpp b : <link>shared : : <include>c ;
exe d : d.cpp : <use>c <link>static ;

The "<use>c" accomplishes this, except that it causes the executable to 
also link against a.lib, which I didn't expect and causes link errors 
with my particular libraries.  c.dll links with a.lib and b.lib, as I 
expected, and d.exe does not link against c

Is this a bug?  Are my expectations invalid?  :-)  The real code is used 
on Windows, but this test case does the same thing with OS X.

Thanks,

Phillip