Hallo, I attached borland-5_8_1-tools.jam which is really a copy of borland-5_6_4-tools.jam modified to use a different BCC_XXX_ROOT variable. Adding this file to tools/build/v1 would make it easier to use the two latest Borland compiler releases at the same time. Thank you, Nicola Musatti # (C) Copyright David Abrahams 2002. # Distributed under the Boost Software License, Version 1.0. # (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) # The following #// line will be used by the regression test table generation # program as the column heading for HTML tables. Must not include version number. #//<a href="http://www.borland.com/bcppbuilder/freecompiler/">Borland</a> { BCCROOT = $(BCC_581_ROOT) ; extends-toolset borland ; C++FLAGS = [ difference $(C++FLAGS) : -WU ] ; CFLAGS = [ difference $(CFLAGS) : -WU ] -DBOOST_ALL_NO_LIB=1 ; LINKFLAGS = [ difference $(LINKFLAGS) : -WU ] ; }