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build: avoid autogen on 'make clean'

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Tested by running 'git submodule foreach git pull origin master' and
'git add .gnulib', then seeing that 'make clean' skips autogen
although 'make' properly runs it.

* cfg.mk (_clean_requested): New check, to speed up 'make clean'
even if gnulib submodule is outdated.
Suggested by Daniel P. Berrange.
This commit is contained in:
Eric Blake 2010-04-06 13:08:01 -06:00
parent 479dfbb084
commit 36bcd7026b
1 changed files with 2 additions and 1 deletions
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3
cfg.mk
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@ -301,7 +301,8 @@ ifeq (0,$(MAKELEVEL))
git diff .gnulib); \
stamp="$$($(_submodule_hash) $(_curr_status) 2>/dev/null)"; \
test "$$stamp" = "$$actual"; echo $$?)
ifeq (1,$(_update_required))
_clean_requested = $(filter %clean,$(MAKECMDGOALS))
ifeq (1,$(_update_required)$(_clean_requested))
$(info INFO: gnulib update required; running ./autogen.sh first)
Makefile: _autogen
endif