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Move generation of config-host.h to Makefile from configure

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Use timestamp based appreach to avoid not needed recompilation.
Add it to rules.mak

Many thanks to Paolo Bonzini for helpding the design, and the debug.

Patchworks-ID: 35190
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Juan Quintela 2009-10-07 02:40:58 +02:00 • committed by Anthony Liguori
parent deed3ccfca
commit 1215c6e761
4 changed files with 21 additions and 23 deletions
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9
rules.mak
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@ -35,3 +35,12 @@ quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))
cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \
>/dev/null 2>&1 && echo OK), $2, $3)
# Generate timestamp files for .h include files
%.h: %.h-timestamp
@test -f $@ || cp $< $@
%.h-timestamp: %.mak
$(call quiet-command, $(SRC_PATH)/create_config < $< > $@, " GEN $*.h")
@cmp $@ $*.h >/dev/null 2>&1 || cp $@ $*.h