&~/ => $(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
far enough to regenerate a working set of makefiles. If this happens
just rerun ./config.status by hand.
+If you go back and forth between different versions of your code you
+can sometimes find that `make' complains that one of your Subdir.sd.mk
+files is missing: typically, if iot was used and therefore a
+dependency in some other version of your code. If you run `make
+clean' (or `make realclean') these dependencies are suppressed, which
+will clear up the problem.
+
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