bjam is stripped by default, this causes QA warning while stripping it
from do_populate_sysroot():
WARNING: File '.../tmp/sysroots/x86_64-linux/usr/bin/bjam' \
from bjam-native was already stripped, \
this will prevent future debugging!
The JAM scripts allow to build unstripped version with '--debug'. Just
build and install the bjam.debug to stop bjam from being stripped in
compile step.
Signed-off-by: Wenzong Fan <wenzong.fan@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com>