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* bug#61579: master branch: Byte compilation: Warning messages inside eval-and-compile lose their positions.
@ 2023-02-17 17:08 Alan Mackenzie
  2023-02-17 17:37 ` Alan Mackenzie
  0 siblings, 1 reply; 2+ messages in thread
From: Alan Mackenzie @ 2023-02-17 17:08 UTC (permalink / raw)
  To: 61579

Hello, Emacs.

In buffer *scratch*, enter the following:

(eval-and-compile
  (defvar foo "foo")
  (make-variable-buffer-local 'foo))

..  With point inside that form, do M-x compile-defun.  This causes these
warnings in *Compile-Log*:

  Buffer *scratch*:4:2: Warning: global/dynamic var `foo' lacks a prefix
  Buffer *scratch*:4:2: Warning: `make-variable-buffer-local' not called at
          toplevel

..  The position 4:2 is the position of eval-and-compile, not the correct
positions of the two warning messages.  This is a bug.

[Side note: When eval-and-compile is replaced by eval-when-compile,
correct warning positions are generated thus:

  Buffer *scratch*:5:11: Warning: global/dynamic var `foo' lacks a prefix
  Buffer *scratch*:6:4: Warning: `make-variable-buffer-local' not called at
          toplevel

..]

-- 
Alan Mackenzie (Nuremberg, Germany).





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2023-02-17 17:08 bug#61579: master branch: Byte compilation: Warning messages inside eval-and-compile lose their positions Alan Mackenzie
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