Re: [jamboost] Autolinking and Boost.Build

From: John Maddock (john_at_[hidden])
Date: 2005-08-03 07:42:09

> That was a workaround for a bug, that was just fixed in CVS.
>
> The real function of "explicit" is to say that the target should not be 
> build
> unless explicitly requested. Without it, the "install" target is build 
> twice,
> first time because it's part of Jamfile, and the second time because it's 
> used
> in the "exe" rule.
>
> A bug in "install" target implementation caused it two produce two 
> different
> targets for symlinks, and then V2 would detect that two different targets 
> are
> assigned the same file name, and exit with an error.
>
> But as I've said, the bug is fixed so you can remove "explicit".

OK, I've attached a Jamfile that I've been playing with for the trivial 
link_test program, if you want to test this for yourself put the attached 
file under libs/config/test/link/test.

Some issues:

1) If the I use the default msvc toolset, with just a "using msvc ; " in the 
user-config.jam then the libraries get mangled with "-vc" as the toolset 
name, but of course autolinking expects "-vc71". I'm guessing that when we 
switch to bbv2 for a release that 90% of users will just want the default 
option to "just work", I'm not sure how we fix this though.
2) I haven't kept up with all the discussion on this list, but I thought 
there was a patch to make msvc detection "just work" so that no changes to 
user-config.jam were necessary? It sure would make life easier for new 
users if bjam just configured itself without any need to go editing files 
and placing them in some specific path first.
3) I can fix (1) by adding "using msvc : 7.1 ;" to the user-config.jam, but 
name mangling is still wrong, bjam is producing a "-mt-d" suffix for the 
library, but "-mt-gd" is expected.

I haven't tried any other build variants yet.

Thanks, John. 
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