Deprecate the ((lambda ...) ...) form.

* doc/lispref/functions.texi (Simple Lambda, Argument List):
* doc/lispref/eval.texi (Function Indirection): Avoid deprecated form.

1 files changed, 16 insertions, 0 deletions

diff --git a/doc/lispref/eval.texi b/doc/lispref/eval.texi
index 5bb514451b8..62de337a5e3 100644
--- a/doc/lispref/eval.texi
+++ b/doc/lispref/eval.texi
@@ -305,6 +305,22 @@ function, not a symbol.
 Executing the function itself evaluates its body; this does involve
 symbol function indirection when calling @code{erste}.
 
+  This form is rarely used and is now deprecated.  Instead, you should write it
+as:
+
+@smallexample
+@group
+(funcall (lambda (arg) (erste arg))
+         '(1 2 3))
+@end group
+@end smallexample
+or just
+@smallexample
+@group
+(let ((arg '(1 2 3))) (erste arg))
+@end group
+@end smallexample
+
   The built-in function @code{indirect-function} provides an easy way to
 perform symbol function indirection explicitly.