Re: [Boost-build] Duplicate target errors vs linking same file to both DLL and EXE?

From: Vladimir Prus (ghost_at_[hidden])
Date: 2007-02-19 14:00:51

On Friday 09 February 2007 05:04, Vadim Mikhailov wrote:
> Hi, fellow boost builders!
> 
>   I using bjam v. 3.1.13 NT, boost.build v. 2.0-m11, msvc-8.0 sp1.
> 
>   I need to do something like this and can't seem to figure out how:
> 
> lib library : library.cpp debug.cpp ;
> exe program : program.cpp debug.cpp library ;
> 
>   In other words, I have DLL called "library" which exports few 
> functions, but also compiles in some service module (debug.cpp in this 
> case). Another "program" needs to use functions exported by "library", 
> but also needs to compile in copy of its own debug.cpp.
> (making debug.cpp to export its functions via library.DLL is not 
> acceptable for many reasons). Unfortunately, this always gives me 
> duplicate target errors - when I try to build it using bjam, I get this:

I've added this case as comment to:

        https://zigzag.cs.msu.su:7813/boost.build/ticket/4

Unfortunately, fixing that issue might take some time.

As a workaround, you can use this:

        local common-sources = debug.cpp ;
        local common-objects ;
        for local s in $(common-sources) 
        {
        common-objects += [ obj $(s:S=.o) : $(s) ] ;
        }
        exe program : $(common-objects) ........ ;

HTH,
Volodya