Re: [Boost.Build V2] Couple of newbie questions.

From: klapshin <klapshin_at_[hidden] (klapshin_at_[hidden])
Date: 2003-02-20 14:35:43

--- In jamboost_at_[hidden], Vladimir Prus <ghost_at_c...> wrote:
> This resembles very much what I need. In my settings, project-
root.jam contains:
[skip]
Thanks a lot. Works perfectly.

> exe a : [ GLOB [ project.attribute $(__name__) location ] : 
*.cpp ] ;
Wow, that is pretty much what I was trying to do. What I was missing 
is __name__ variable. Thanks again.

Now I have more questions; hope you would not mind.

The real problem for me at the moment is how to link one dll to 
another?
For example I am using Xerces-C library, since CygWin comes with 
prebuilt xerces I decided to give it a try. In my Jamfile I put 
something like this:

lib xerces : : <name>xerces-c22 <search>/lib ;

lib util : util.cpp xerces ;

And bjam does not even try to link it with xerces. It is not 
surprising that I am getting lots of link errors. 

If in my jamfile, I replace "lib util" with "exe util" it does link 
with xerces!

Another strange thing I notices is that link options appear twice on 
gcc command line, e.g.:

g++ -g -L/lib -o bin/gcc/debug/util.exe 
bin/gcc/debug/util.o -Wl,-Bdynamic -lxerces-c22
-Wl,-Bstatic -Wl,-Bdynamic -lxerces-c22 -Wl,-Bstatic -Wl,-
Bdynamic

And while we are at it, how would you suggest to tackle the problem 
that the same external library on different systems could be located 
in different places? Using environment variables?

Thanks in advance.

- Kirill