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href: https://github.com/ProofGeneral/PG/issues/493#issuecomment-634493988
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Emacs occasionally loads Elisp files just to get more info (e.g. for C-h f),
so loading a file should "no effect". Fix the most obvious such effects:
the splash screen and the autotests by moving those effects into a function.
* coq/coq-autotest.el: Make it declarative. Use lexical-binding.
(coq-autotest): New function holding the code that used to be at top-level.
* generic/proof.el: Use lexical-binding.
Don't call proof-splash-message just because we're being loaded.
* generic/proof-script.el: Use lexical-scoping; fix all warnings.
(pg-show-all-portions): Simplify the code with a closure.
(proof-activate-scripting): Declare activated-interactively as dyn-scoped.
(proof--splash-done): New var.
(proof-mode): Call proof-splash-message upon first use.
* generic/proof-splash.el (proof-splash-message): Don't check
byte-compile-current-file now that we're only called when the mode
is activated.
* acl2/acl2.el (auto-mode-alist): Use `add-to-list` and \'.
* coq/coq-db.el (coq-build-menu-from-db-internal): Avoid silly O(N²).
* coq/coq-seq-compile.el:
* coq/coq-par-test.el:
* coq/coq-par-compile.el: Fix leftover uses of CL's `assert`.
* generic/proof-utils.el:
* generic/pg-movie.el:
* etc/testsuite/pg-test.el:
* coq/coq-syntax.el: Fix leftover uses of CL's `incf`.
* generic/pg-autotest.el: Fix leftover uses of CL's `decf`.
* obsolete/plastic/plastic.el (plastic-preprocessing): Fix leftover use
of CL's `loop`.
* generic/pg-user.el (proof-add-completions): Do nothing if no
proof-assistant is set yet (i.e. during byte-compilation).
(byte-compile-current-file): No need to test this any more.
* generic/proof-syntax.el (proof-regexp-alt-list): Use mapconcat.
Remove unnecessary "\\(?:...\\)".
(proof-regexp-alt): Redefine in terms of proof-regexp-alt-list.
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8.4 compatibility is done by ignoring all quick settings for
`coq-compile-quick' via a :set function. This does only work if
this variable is only changed via the customization system and
not directly via setq.
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If both .vio and .vo exists, coq loads the newer one. Therefore,
for ensure-vo, don't delete up-to-date .vio files when the .vo is
newer.
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Selecting quick-and-vio2vo will start vio2vo conversion in the
background on a subset of the available cores, see
`coq-max-background-vio2vo-percentage'. The vio2vo conversion
starts after all compilation for the require command has been
finished and the require has been processed. Because of a certain
incompatibility between .vio and .vo files (see coq issue 5223)
slowly single stepping through require commands does not
work (but processing them as a batch does).
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In this case Coq loads the younger file and emits a warning if
the .vio file is the younger one. With this patch, the dependency
analysis for parallel compilation continues with the older value.
The interesting case to look at is when b.v depends on a.v and
both are compiled with -quick and later a parallel vio2vo
produces a.vo and b.vo such that b.vo is older (because, eg. b.v
is shorter than a.v). Without this patch a second auto
compilation would recompile b.v, because the dependency a.vo is
younger.
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Since version 24.3 Emacs supports pico second precision in time
stamps and Emacs on ext4 seems to have a time precision of 5
milliseconds for file time stamps. It is therefor quite unlikely
that a source and an object file have the same time stamp. This
patch fixes parallel compilation for these corner cases and adds
a few hundred test cases to test all combinations where some
files have identical time stamps. On Emacs older than 24.3 or on
file systems with a low precision (eg. ext3) this patch can cause
additional compilations.
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Select "Quick compilation mode" in the Coq menu. See also
documentation of coq-compile-quick, the and-vio2vo stuff is not yet
there.
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