"error: unable to construct..."

From: David Abrahams (dave_at_[hidden])
Date: 2004-12-10 12:49:32

Help! I'm getting some errors I don't know what to do with.

cd /home/dave/src/osl/mtl4/libs/numeric/mtl/doc/
bjam -n -a

/home/dave/boost/tools/build/v2/build/targets.jam:1237: in construct from module object(typed-target)@1
error: unable to construct ../../../../libs/numeric/mtl/doc/index
/home/dave/boost/tools/build/v2/build/targets.jam:1093: in object(typed-target)@1.generate from module object(typed-target)@1
/home/dave/boost/tools/build/v2/build/targets.jam:712: in generate-really from module object(main-target)@1
/home/dave/boost/tools/build/v2/build/targets.jam:685: in object(main-target)@1.generate from module object(main-target)@1
/home/dave/boost/tools/build/v2/build/targets.jam:237: in object(project-target)@2.generate from module object(project-target)@2
/home/dave/boost/tools/build/v2/build-system.jam:160: in load from module build-system
/home/dave/boost/tools/build/v2/kernel/modules.jam:261: in import from module modules
/home/dave/boost/tools/build/v2/kernel/bootstrap.jam:120: in boost-build from module
/home/dave/src/osl/mtl4/boost-build.jam:6: in module scope from module

Also, if I uncomment the commented line in the Jamfile, I get:

/home/dave/boost/tools/build/v2/build/targets.jam:704: in generate-really from module object(main-target)@1
error: failed to build ../../../../libs/numeric/mtl/doc/index with properties because no best-matching alternative could be found
/home/dave/boost/tools/build/v2/build/targets.jam:685: in object(main-target)@1.generate from module object(main-target)@1
/home/dave/boost/tools/build/v2/build/targets.jam:237: in object(project-target)@2.generate from module object(project-target)@2
/home/dave/boost/tools/build/v2/build-system.jam:160: in load from module build-system
/home/dave/boost/tools/build/v2/kernel/modules.jam:261: in import from module modules
/home/dave/boost/tools/build/v2/kernel/bootstrap.jam:120: in boost-build from module
/home/dave/src/osl/mtl4/boost-build.jam:6: in module scope from module

Both of these look wrong to me. What have I messed up?

P.S. It's disconcerting to see ../../../../ junk in the BBv2 output; I
had hoped we'd squash that by now. It's embarrassing enough in BBv1.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com