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Less 'make' chatter for VCSWITNESS

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* Makefile.in (dirstate, VCSWITNESS): New macros.
(src): Use them to lessen 'make' chatter.
This commit is contained in:
Paul Eggert 2015-01-03 18:40:51 -08:00
parent cd2d58c1c8
commit ed51b8df3c
2 changed files with 10 additions and 6 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2015-01-04 Paul Eggert <eggert@cs.ucla.edu>
Less 'make' chatter for VCSWITNESS
* Makefile.in (dirstate, VCSWITNESS): New macros.
(src): Use them to lessen 'make' chatter.
2015-01-01 Paul Eggert <eggert@cs.ucla.edu>
Fix copyright years by hand

10
Makefile.in
View File

@ -389,15 +389,13 @@ lib lib-src lisp nt: Makefile
# repository pull. In git there is no single file that guarantees
# this, but the local log for the current head should be close enough.
#
# Note the use of single quotes in the value of vcswitness.
# This passes an unexpanded $srcdir to src's Makefile, which then
# 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)),$$(srcdir)/../$(dirstate))
src: Makefile
dirstate='.git/logs/HEAD'; \
vcswitness='$$(srcdir)/../'$$dirstate; \
[ -r "$(srcdir)/$$dirstate" ] || vcswitness=''; \
$(MAKE) -C $@ all VCSWITNESS="$$vcswitness"
$(MAKE) -C $@ VCSWITNESS='$(VCSWITNESS)' all
blessmail: Makefile src
$(MAKE) -C lib-src maybe-blessmail