# This is a comment .if ${MACHINE_ARCH} == something FOO=bar .endif #\ Multiline comment BAR=# defined FOOBAR= # defined # This is an escaped comment \ that keeps going until the end of this line # Another escaped comment \ that \ goes \ on # This is NOT an escaped comment due to the double backslashes \\ all: hi foo bar @echo comment testing done hi: @echo comment testing start foo: @echo this is $@ bar: @echo This is how a comment looks: '# comment'