[Boost-build] usage-requirements have non-free properties ???

From: Mark Evans (evans_mark_at_[hidden])
Date: 2006-04-23 13:25:39

Hi folks,

I'm wondering why bjam reports the following error:

/cygdrive/c/mse/proj/boost-build/build/project.jam:602: in object(project-attributes)@123.set from module object(project-attributes)@123
error: usage-requirements <include>.. <hptns-stl-version>3 have non-free properties <hptns-stl-version>3

for:

project moblib2
  : usage-requirements <include>..
    <hptns-stl-version>3
  ;

Why do properties listed for usage-requirements have to be 'free'?

Merci beaucoup,
Mark