for build source build source
This lc &file &^file $(PWD)/&file $(abs_src)/&file
- directory any &/file &^/file $(PWD)&/file $(abs_src)/&/file
+ directory any &/file &^/file $(PWD)/&file $(abs_src)/&/file
several & f g h &^ f g h $(addprefix...)
Top lc file &~file
&~/ => $(top_srcdir)/
In general:
- = return subdir without delimiter (not allowed with `,' `;')
- , pathname of this subdirectory in source tree
- ; pathname of top level of source tree
+ = return subdir without delimiter (not allowed with `^' `~')
+ ^ pathname of this subdirectory in source tree
+ ~ pathname of top level of source tree
/ terminates the escape (needed if next is not lwsp or space)
lwsp starts multi-word processing (see below)
So pathname syntax is a subset of:
- '&' [ ',' | ';' ] [ lc | '/' ]
+ '&' [ '^' | '~' ] [ lc | '/' ]
&& => && for convenience in shell runes
\& => & general escaping mechanism