Hi, I try to upgrade from 1.38 to 1.39 and have to rewrite my building scripts. For gcc I had no particular issue. But for the intel compiler, it does not work: $ ./bootstrap.sh --without-icu --without-libraries=python --prefix=/soft/bal/usr/icc/boost --with-toolset=intel-linux $ ./bjam --layout=system --libdir=/soft/bal/usr/icc/boost/lib link=static threading=multi runtime-link=shared address-model=64 instruction-set=nocona release install However, I obtain the following error from bjam: error: at /soft/bal/usr/builds/icc/boost_1_39_0/tools/build/v2/build/project.jam:874 error: intel-linux initialization: parameter 'version' inconsistent error: an explicit value was specified in an earlier initialization error: no value is specified now Any clue? Frédéric PS: the content of the automatically generated project-config.jam: import option ; import feature ; if ! intel-linux in [ feature.values <toolset> ] { using intel-linux ; } project : default-build <toolset>intel-linux ; libraries = --without-python ; option.set prefix : /soft/bal/usr/icc/boost ; option.set exec-prefix : /soft/bal/usr/icc/boost ; option.set libdir : /lib ; option.set includedir : /soft/bal/usr/icc/boost/include ;