make_rules
make_rules
adds inclusion
tools/build/rules/common.mak to the makefile. The
rules file is a central part of the build system, so you probably want
to use it unless you are writing a script for other purpose than
building the software for a product.
rev
=revisionUse the old rules file, apps/Rules.elinux, of the specified revision instead of the new rules file, tools/build/rules/common.mak. This option is deprecated and it only exists for compatibility with old scripts. This option may go away in future versions, so do not use it unless you really have to!