X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?p=subdirmk.git;a=blobdiff_plain;f=README;h=5bfb29ebdecf5cfdd00246e8319427a04464c4b9;hp=5897e308644050ec8006fe42e830816ed03f0fb2;hb=10b511fc2feaaf18a62eeb57087c2527ff71ce11;hpb=9280923e03ea7603e19fabed95d600bcc928a1cf;ds=sidebyside

diff --git a/README b/README
index 5897e30..5bfb29e 100644
--- a/README
+++ b/README
@@ -141,15 +141,17 @@ 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
+      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
+
+  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
 
 Substitution syntax
 -------------------
@@ -182,6 +184,11 @@ empty string).
 &^		=>	$(top_srcdir)/sub/dir		or $(top_srcdir)
 &~		=>	$(abs_top_srcdir)/sub/dir	or $(abs_top_srcdir)
 
+In general:
+        ^       filenames in source tree rather than build tree
+        ~       filenames are absolute rather than relative
+        @       filenames do not contain subdir (useful with the above)
+
 &&		=>	&&		for convenience in shell runes
 \&		=>	&		general escaping mechanism