I am receiving the following on a Solaris system when using: jam -sBOOST_ROOT=. -sTOOLS=gcc status/Jamfile:53: in failed-test-file warning: unknown rule FAIL_EXPECTED status/Jamfile:100: in fail-to-build ./tools/build/boost-base.jam:1407: in subvariant-target ./tools/build/boost-base.jam:1448: in main-target ./tools/build/boost-base.jam:1065: in declare-local-target status/Jamfile:35: in boost-test status/Jamfile:119: in compile-fail status/Jamfile:368: in SubInclude ./tools/build/allyourbase.jam:1141: in subinclude Jamfile:5: in module scope {...above repeated many times...} Unable to load Boost.Build, it seems that the build system files were located, but the build system is not defined. Attempted to use, as the bootstrap, this file: ./tools/build/boost-build.jam. This means that even though that file was loaded it either failed to directly load the build system files, or it failed to specify where to find and load the files by calling the 'build-system [path] ;' rule. Please consult the documentation at 'http://www.boost.org'. What am I doing wrong? Any help is appreciated.