bug#7127: 23.2; M-x help throws an error

[Glenn Morris]

This may be Cygwin-specific?

Aidan Kehoe wrote:

> (symbol-function 'help-for-help-internal) (h-f-h-i being what help
> eventually resolves to) gives me a compiled function with a nil
> documentation slot; help.elc has (defalias 'help-for-help-internal
> ...) with a compiled function and what seems to be the correct lazy
> doc reference. The DOC file seems correct, with an entry
> Fhelp-for-help-internal Help command.
>
> But (documentation #'custom-declare-variable-early) and (documentation
> #'when) both give nil for me, and the same seems to be true for all the
> dumped compiled functions with docstrings. I don’t know why that is, and I
> don’t especially care to debug it right now, but this binary is what Cygwin
> installed, I’m certain I’m not the only one affected.
>
>  > > In GNU Emacs 23.2.1 (i686-pc-cygwin, GTK+ Version 2.18.6)
>  > >  of 2010-05-08 on laptop