bug#53024: 29.0.50; Wishlist: Byte-compile loaddefs.el?

[Lars Ingebrigtsen <larsi@gnus.org>]

Andreas Schwab <schwab@linux-m68k.org> writes:

> If you want to create a phony target you need to make that a dependency
> of .PHONY.

The problem turned out to be that pinyin.el was generated after Emacs
had been built, which triggered a change in loaddefs.el, which then
triggered a rebuilt of the emacs binary.  *phew*

This is now fixed, and it seems like I've now got it to not do any
excessive rebuilds, while still triggering rebuilds consistently.

Anybody got any comments before pushing this?  (We can then remove the
"\\n" hack in the reader, I think.)

diff --git a/lisp/Makefile.in b/lisp/Makefile.in
index 9516f2fc36..315b1fcf7b 100644
--- a/lisp/Makefile.in
+++ b/lisp/Makefile.in
@@ -123,10 +123,10 @@ SUBDIRS_FINDER =
 ## All subdirectories in which we might want to create subdirs.el.
 SUBDIRS_SUBDIRS = $(filter-out ${srcdir}/cedet% ${srcdir}/leim%,${SUBDIRS})
 
-# cus-load and finder-inf are not explicitly requested by anything, so
-# we add them here to make sure they get built.
+# cus-load, finder-inf and autoloads are not explicitly requested by
+# anything, so we add them here to make sure they get built.
 all: compile-main $(lisp)/cus-load.el $(lisp)/finder-inf.el generate-ja-dic \
-	org-manuals
+	org-manuals autoloads
 
 PHONY_EXTRAS =
 .PHONY: all custom-deps finder-data autoloads update-subdirs $(PHONY_EXTRAS) \
@@ -196,13 +196,10 @@ org-manuals:
 # from ../src rules, but that doesn't seem possible due to the various
 # non-trivial dependencies.
 
-# We make $(lisp)/loaddefs.el a dependency of .PHONY to cause Make to
-# ignore its time stamp.  That's because the real dependencies of
-# loaddefs.el aren't known to Make, they are implemented in
-# loaddefs-generate--emacs-batch.
-
-autoloads .PHONY: $(lisp)/loaddefs.el
-$(lisp)/loaddefs.el: gen-lisp $(LOADDEFS) $(lisp)/emacs-lisp/loaddefs-gen.elc
+# That's because the real dependencies of loaddefs.el aren't known to
+# Make, they are implemented in loaddefs-generate--emacs-batch, so
+# autoloads is an "all" dependency.
+autoloads:
 	$(AM_V_GEN)$(emacs) \
             -l $(lisp)/emacs-lisp/loaddefs-gen.elc \
 	    -f loaddefs-generate--emacs-batch ${SUBDIRS_ALMOST}
diff --git a/lisp/emacs-lisp/loaddefs-gen.el b/lisp/emacs-lisp/loaddefs-gen.el
index 36b0b1e9cd..830799ec36 100644
--- a/lisp/emacs-lisp/loaddefs-gen.el
+++ b/lisp/emacs-lisp/loaddefs-gen.el
@@ -588,7 +588,8 @@ loaddefs-generate
           (with-temp-buffer
             (if (and updating (file-exists-p loaddefs-file))
                 (insert-file-contents loaddefs-file)
-              (insert (loaddefs-generate--rubric loaddefs-file nil t))
+              (insert (loaddefs-generate--rubric
+                       loaddefs-file nil t include-package-version))
               (search-backward "\f")
               (when extra-data
                 (insert extra-data)
diff --git a/lisp/loadup.el b/lisp/loadup.el
index 21a87dbd77..a65c1724ae 100644
--- a/lisp/loadup.el
+++ b/lisp/loadup.el
@@ -185,9 +185,10 @@
 ;; should be updated by overwriting it with an up-to-date copy of
 ;; loaddefs.el that is not corrupted by local changes.
 ;; admin/update_autogen can be used to update ldefs-boot.el periodically.
-(condition-case nil (load "loaddefs.el")
-  ;; In case loaddefs hasn't been generated yet.
-  (file-error (load "ldefs-boot.el")))
+(condition-case nil
+    (load "loaddefs")
+  (file-error
+   (load "ldefs-boot.el")))
 
 (let ((new (make-hash-table :test #'equal)))
   ;; Now that loaddefs has populated definition-prefixes, purify its contents.
diff --git a/src/Makefile.in b/src/Makefile.in
index 7d15b7afd5..4a20176bdc 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -635,7 +635,8 @@ Emacs.pdmp:
 endif
 
 ifeq ($(DUMPING),pdumper)
-$(pdmp): emacs$(EXEEXT)
+$(pdmp): emacs$(EXEEXT) $(lispsource)/loaddefs.elc
+	echo "DUMPING"
 	LC_ALL=C $(RUN_TEMACS) -batch $(BUILD_DETAILS) -l loadup --temacs=pdump \
 		--bin-dest $(BIN_DESTDIR) --eln-dest $(ELN_DESTDIR)
 	cp -f $@ $(bootstrap_pdmp)
@@ -652,13 +653,11 @@ $(pdmp):
 ## for the first time, this prevents any variation between configurations
 ## in the contents of the DOC file.
 ##
-$(etc)/DOC: $(libsrc)/make-docfile$(EXEEXT) $(doc_obj) $(lispsource)/loaddefs.el
+$(etc)/DOC: $(libsrc)/make-docfile$(EXEEXT) $(doc_obj)
 	$(AM_V_GEN)$(MKDIR_P) $(etc)
 	$(AM_V_at)rm -f $(etc)/DOC
 	$(AM_V_at)$(libsrc)/make-docfile -d $(srcdir) \
 	  $(SOME_MACHINE_OBJECTS) $(doc_obj) > $(etc)/DOC
-	$(AM_V_at)$(libsrc)/make-docfile -a $(etc)/DOC -d $(lispsource) \
-	  loaddefs.el
 
 $(libsrc)/make-docfile$(EXEEXT) $(libsrc)/make-fingerprint$(EXEEXT): \
   $(lib)/libgnu.a