Boost logo

Boost-Build :

Subject: [Boost-build] Newbie questions
From: Boris Schaeling (boris_at_[hidden])
Date: 2009-07-12 18:43:53

I'm trying to get familiar with Boost.Build. I read the entire
documentation and played around with Jamfiles in some small projects but
still have a few questions:

1) Do I understand correctly that the project rule doesn't care about the
order arguments are passed? For example the sample at
can also be written as:

project tennis : : : : : : : : : : : : : requirements <threading>multi :
default-build release ;

The requirements and the default-build do not need to be passed as a
second or a third argument. They can be passed anywhere. It's just
important that the words 'requirement', 'default-build' or the others
recognized by project are used to tell the rule what is actually meant?
That said project is a rule with named arguments?

2) "default-build release" is the same as "requirements <variant>release"
except that it can be overwritten?

3) Is the list of builtin feature at
complete? I wonder as for example on
a sample uses a property <os> which isn't in the list. Or is <target-os>
what has been <os> maybe in an earlier version of Boost.Build?

4) Does "non-free feature" imply that values are mutually exclusive? Or is
there any non-free feature which could be set to two different values in
the requirements of the exe rule (without bjam complaining)?

5) If Boost.Build isn't installed separately but as part of the Boost C++
libraries, and if my project's boost-build.jam refers to the subdirectory
tools/build/v2 of the root directory of the Boost C++ libraries can I link
more easily to a Boost C++ library without putting a hardcoded path into
my Jamfiles? It would be great if I could use a variable like BOOST_ROOT
knowing that it is automatically defined and set by Boost.Build. I guess
it would require Boost.Build to check if it's installed as part of the
Boost C++ libraries so it can find out itself somehow?


Boost-Build list run by bdawes at, david.abrahams at, gregod at, cpdaniel at, john at