> Maybe it's because you call M-x byte-compiler from an Emacs where longlines
> was already loaded.
> I do not believe so:
> [bash2.05b.0 ~ 3 1] emacs-22.0.50 -batch -f batch-byte-compile
> longlines.el
> Wrote /home/teirllm/longlines.elc
> [bash2.05b.0 ~ 3 2]
> Maybe it is because all the offending occurrences of the variable are
> in defadvice forms.
Indeed. The code in defadvice is (generally) not compiled during
byte-compilation.
> Another thing I do not understand is that (devar longlines-mode) did
> not help. Only (devar longlines-mode nil) did.
A (defvar longlines-mode) doesn't have any long term effect: it only
temporarily tells the byte-compiler to shut up. This only lasts until the
file is byte-compiled. If you do further byte-compilation (e.g. of the
advice code or of code output by some macro), the byte-compiler won't
remember that the file where this code originally appeared had a (defvar
longlines-mode).
Stefan
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