* lisp/emacs-lisp/macroexp.el (macroexp-file-name): New function.

Yes, finally: a function that tells you the name of the file where
the code is located.  Finding this name is non-trivial in practice,
as evidenced by the "4 shift/reduce conflicts" warning when compiling
CEDET's python.el, because its `wisent-source` got it wrong in that
case, thinking the grammar came from `python.el` instead of
`python-wy.el`.

While at it, also made `macroexp-compiling-p` public, since it's
useful at various places.

(macroexp-compiling-p): Rename from `macroexp--compiling-p`.

* lisp/emacs-lisp/bytecomp.el (byte-compile-close-variables):
Bind `load-file-name` to nil so we can distinguish a load that calls
the byte compiler from a byte compilation which causes a load.

* lisp/cedet/semantic/wisent/python.el (wisent-python--expected-conflicts):
Remove; it was just a workaround.
* lisp/subr.el (do-after-load-evaluation): Avoid `byte-compile--` vars.
* lisp/cedet/semantic/fw.el (semantic-alias-obsolete):
Use `macroexp-compiling-p` and `macroexp-file-name`.
* lisp/cedet/semantic/wisent/comp.el (wisent-source): Use `macroexp-file-name`
(wisent-total-conflicts): Tighten regexp.
* lisp/emacs-lisp/cl-lib.el (cl--compiling-file): Delete function
and variable.  Use `macroexp-compiling-p` instead.
* lisp/progmodes/flymake.el (flymake-log):
* lisp/emacs-lisp/package.el (package-get-version):
* lisp/emacs-lisp/ert-x.el (ert-resource-directory):
Use `macroexp-file-name`.

1 files changed, 3 insertions, 8 deletions

diff --git a/lisp/emacs-lisp/cl-lib.el b/lisp/emacs-lisp/cl-lib.el
index f06452ea174..7f7eb963423 100644
--- a/lisp/emacs-lisp/cl-lib.el
+++ b/lisp/emacs-lisp/cl-lib.el
@@ -232,13 +232,8 @@ one value.
 
 ;;; Declarations.
 
-(defvar cl--compiling-file nil)
-(defun cl--compiling-file ()
-  (or cl--compiling-file
-      (and (boundp 'byte-compile--outbuffer)
-           (bufferp (symbol-value 'byte-compile--outbuffer))
-	   (equal (buffer-name (symbol-value 'byte-compile--outbuffer))
-		  " *Compiler Output*"))))
+(define-obsolete-function-alias 'cl--compiling-file
+  #'macroexp-compiling-p "28.1")
 
 (defvar cl--proclaims-deferred nil)
 
@@ -253,7 +248,7 @@ one value.
 Puts `(cl-eval-when (compile load eval) ...)' around the declarations
 so that they are registered at compile-time as well as run-time."
   (let ((body (mapcar (lambda (x) `(cl-proclaim ',x)) specs)))
-    (if (cl--compiling-file) `(cl-eval-when (compile load eval) ,@body)
+    (if (macroexp-compiling-p) `(cl-eval-when (compile load eval) ,@body)
       `(progn ,@body))))           ; Avoid loading cl-macs.el for cl-eval-when.