@item
The type of machine you are using, and the operating system name and
-version number (again, automatically included by @kbd{M-x
-report-emacs-bug}). @kbd{M-x emacs-version @key{RET}} provides this
-information too. Copy its output from the @file{*Messages*} buffer,
-so that you get it all and get it accurately.
+version number (again, automatically included by @w{@kbd{M-x
+report-emacs-bug}}). @w{@kbd{M-x emacs-version @key{RET}}} provides
+this information too. Copy its output from the @file{*Messages*}
+buffer, so that you get it all and get it accurately, or use
+@w{@kbd{C-u M-x emacs-version @key{RET}}} to insert the version
+information into the current buffer.
@item
The operands given to the @code{configure} command when Emacs was
(defvar cairo-version-string)
(defun emacs-version (&optional here)
- "Return string describing the version of Emacs that is running.
-If optional argument HERE is non-nil, insert string at point.
+ "Display the version of Emacs that is running in this session.
+With a prefix argument, insert the Emacs version string at point
+instead of displaying it.
+If called from Lisp, by default return the version string; but
+if the optional argument HERE is non-nil, insert the string at
+point instead.
+
Don't use this function in programs to choose actions according
to the system configuration; look at `system-configuration' instead."
(interactive "P")