Table of Contents
- How do I get the current value of feature in Jamfile?
- I am getting a "Duplicate name of actual target" error. What does that mean?
- Accessing environment variables
- How to control properties order?
- How to control the library linking order on Unix?
- Can I get capture external program output using a Boost.Jam variable?
- How to get the project root (a.k.a. Jamroot) location?
- How to change compilation flags for one file?
-
Why are the
dll-pathandhardcode-dll-pathsproperties useful? - Targets in site-config.jam
- Header-only libraries
This is not possible, since Jamfile does not have "current" value of any
feature, be it toolset, build variant or anything else. For a single
invocation of bjam, any given main target can be
built with several property sets. For example, user can request two build
variants on the command line. Or one library is built as shared when used
from one application, and as static when used from another. Each Jamfile
is read only once so generally there is no single value of a feature you
can access in Jamfile.
A feature has a specific value only when building a target, and there are two ways you can use that value:
- Use conditional requirements or indirect conditional requirements. See the section called “Requirements”.
- Define a custom generator and a custom main target type. The custom generator can do arbitrary processing or properties. See the Chapter 7, Extender Manual.