X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?p=subdirmk.git;a=blobdiff_plain;f=README;h=5897e308644050ec8006fe42e830816ed03f0fb2;hp=1111dcb90fb7ce57ed7acd70bbe0bbbb8f275baa;hb=9280923e03ea7603e19fabed95d600bcc928a1cf;hpb=9e1b64a42ed45afdb4748bce19468f061132c17a

diff --git a/README b/README
index 1111dcb..5897e30 100644
--- a/README
+++ b/README
@@ -138,6 +138,19 @@ If you `include subdirmk/regen.mk', dependency management and
 automatic regeneration for all of this template substitution, and for
 config.status etc. is done for you.
 
+Summary of directory reference syntaxes
+---------------------------------------
+
+                  In source tree             In build tree
+                  Relative     Absolute      Relative  Absolute
+
+                                             &file     $(abs)/&file
+ This directory   &^/file      &~/file       &/file    $(abs)/&/file
+                  & ^ f g h    & ~ f g h     & f g h
+
+ Top level        $(ts)/file   $(ats)/file   file      $(abs)/file
+                                             f g h
+
 Substitution syntax
 -------------------