builddir = $out
disabled = false

rule compile
    command = $disabled && touch $out || $cc -g -Werror -Os $cflags $extra_cflags $
             -MD -MF $out.d -c $in -o $out
    depfile = $out.d
    deps    = gcc
    description = compile $out

rule link
    command = $disabled && touch $out || $cc $ldflags $extra_ldflags -lm $in -o $out
    description = link $out

include build/targets