master 40c1132711: Remove VCSWITNESS dependency, since we're always rescanning now

[Lars Ingebrigtsen]

branch: master
commit 40c11327118a6023745dbcbdca0564cbc6ba15da
Author: Lars Ingebrigtsen <larsi@gnus.org>
Commit: Lars Ingebrigtsen <larsi@gnus.org>

    Remove VCSWITNESS dependency, since we're always rescanning now
    
    * Makefile.in (VCSWITNESS): Remove, since we're always rescanning
    for loaddefs.
    * src/Makefile.in ($(lispsource)/loaddefs.el): Remove VCSWITNESS
    dependency.
---
 Makefile.in     | 9 +--------
 src/Makefile.in | 8 +-------
 2 files changed, 2 insertions(+), 15 deletions(-)

diff --git a/Makefile.in b/Makefile.in
index 4b74963665..bf0f52b514 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -455,18 +455,11 @@ lisp: src
 lib lib-src lisp nt: Makefile
        $(MAKE) -C $@ all
 
-# Ideally, VCSWITNESS should be a file that is modified whenever the
-# repository registers a commit from either a local checkin or a
-# repository pull. In git there is no single file that guarantees
-# this, but the local log for the current head should be close enough.
-#
 # Pass an unexpanded $srcdir to src's Makefile, which then
 # expands it using its own value of srcdir (which points to the
 # source directory of src/).
-dirstate = .git/logs/HEAD
-VCSWITNESS = $(if $(wildcard $(srcdir)/$(dirstate)),$$(srcdir)/../$(dirstate))
 src: Makefile
-       $(MAKE) -C $@ VCSWITNESS='$(VCSWITNESS)' BIN_DESTDIR='$(BIN_DESTDIR)' \
+       $(MAKE) -C $@ BIN_DESTDIR='$(BIN_DESTDIR)' \
                 ELN_DESTDIR='$(ELN_DESTDIR)' all
 
 blessmail: Makefile src
diff --git a/src/Makefile.in b/src/Makefile.in
index e81e7a16d9..8551447c8b 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -886,13 +886,7 @@ elnlisp := $(addprefix ${lispsource}/,${elnlisp}) 
$(lisp:.elc=.eln)
        fi
 endif
 
-## VCSWITNESS points to the file that holds info about the current checkout.
-## We use it as a heuristic to decide when to rebuild loaddefs.el.
-## If empty it is ignored; the parent makefile can set it to some other value.
-VCSWITNESS =
-
-$(lispsource)/loaddefs.el: $(VCSWITNESS) | \
-               bootstrap-emacs$(EXEEXT) $(bootstrap_pdmp)
+$(lispsource)/loaddefs.el: | bootstrap-emacs$(EXEEXT) $(bootstrap_pdmp)
        $(MAKE) -C ../lisp autoloads EMACS="$(bootstrap_exe)"
 
 ## Dump an Emacs executable named bootstrap-emacs containing the