Description - Mks.com

The construct may be modified:
fred.obj : $$(@:b).c
If you are building a library, $$% stands for the name of the archive member being made. If you are
building a normal target, $$% stands for the name of the target currently being made.
$$* stands for the name of the current target being made, but with no suffix.
If you are building a library, $$> stands for the name of the archive library being made. If you are
not building a library, its use is invalid.
Comments
Comments begin with the number sign (#) character and extend to the end-of-line. make discards
all comment text.
Makefile Contents
Inside makefiles, you can split long lines over several lines of text. To do this, put a backslash (\)
at the very end of the line. You can use this technique to extend comments as well as recipe lines
and macro definitions for example.
If a rule or macro definition must contain a # character, use \#; otherwise, make mistakes the # for
the beginning of a comment. Also, if a macro definition must contain a single $ character, use $$.
File names that contain a colon (:) must always be enclosed in quotes (" "):
"a:target" : "a:prereq"
Rules
The general format of a rule is
targets [attributes] ruleop [prerequisites] [;recipe]
{ recipe}
The parts of the rule are described as follows.
targets
one or more target names.
attributes
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