1# Boost.Build top level Jamrules 2 3# See tools/build/index.html for documentation. 4 5# Set some important global variables if they haven't already been set by the 6# user on the command-line or in the environment 7 8# Establish this as the root of the boost installation. Most targets will want 9# $(BOOST_ROOT) in their #include path. $(gTOP) is the name of the variable 10# containing the path from the invocation directory to the project root. 11path-global BOOST_ROOT : $($(gTOP)) ; 12 13# The current version of Boost. 14BOOST_VERSION ?= 1.30.0 ; 15