Summary of directory reference syntaxes
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+Path construction &-expansions, meanings summary:
+
+ In build tree In source tree
+ This directory just & &,
+ Top level &. implies absolute &;
+
+Adding `@' means "absolute path". This is not needed with &. because
+there is never any need to use &. since it would expand to nothing.
+`/' terminates the escape (needed if the next thing is not a lowercase
+character, or space). `=' means "just the value, no /". Space starts
+multi-word processing.
+
Recommended In build tree In source tree
when Relative Absolute Relative Absolute
- This lc &file &~file &^file &^~file
- directory any &/file &~/file &^/file &^~/file
- several & f g h & ~ f g h & ^ f g h & ^~ f g h
+ This lc &file &@file &,file &@,file
+ directory any &/file &@/file &,/file &@,/file
+ several & f g h &@ f g h &, f g h &^, f g h
- Top lc &@~file &@^file &@~^file
- level any file &@~/file &@^/file &@~^/file
+ Top lc &.file &;file &@;file
+ level any file &./file &;/file &@;/file
.mk.in file $(abs)/file $(src)/file $(abs_src)/file
- several f g h & @~ f g h & @^ f g h & @~^ f g h
+ several f g h &. f g h &; f g h &@; f g h
+ &@. file
+ &@. f g h
Substitution syntax
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