maint: Redirect developers to active branch

_This_ branch does not contain actively-developed code.  More likely,
you want to check out branch-1.4 (latest stable), branch-1.6 (some
speedups over 1.4, but not yet released), or branch-2.0 (many more
experimental changes, and even further from release).

* README: Document the status of this git repository.

1 files changed, 0 insertions, 16 deletions

diff --git a/doc/examples/stack.m4 b/doc/examples/stack.m4
deleted file mode 100644
index c1b98333..00000000
--- a/doc/examples/stack.m4
+++ /dev/null
@@ -1,16 +0,0 @@
-divert(`-1')
-# stack_foreach(macro, action)
-# Invoke ACTION with a single argument of each definition
-# from the definition stack of MACRO, starting with the oldest.
-define(`stack_foreach',
-`_stack_reverse(`$1', `tmp-$1')'dnl
-`_stack_reverse(`tmp-$1', `$1', `$2(defn(`$1'))')')
-# stack_foreach_lifo(macro, action)
-# Invoke ACTION with a single argument of each definition
-# from the definition stack of MACRO, starting with the newest.
-define(`stack_foreach_lifo',
-`_stack_reverse(`$1', `tmp-$1', `$2(defn(`$1'))')'dnl
-`_stack_reverse(`tmp-$1', `$1')')
-define(`_stack_reverse',
-`ifdef(`$1', `pushdef(`$2', defn(`$1'))$3`'popdef(`$1')$0($@)')')
-divert`'dnl