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Fix BUILD_SERIAL.

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Change from using #if to #ifdef, since #if can't cope with string
constants.
This commit is contained in:
Michael Brown
2005-04-18 12:43:18 +00:00
parent 85b00c4b72
commit cf79681b80
5 changed files with 111 additions and 65 deletions
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26
src/Makefile.housekeeping
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@@ -359,26 +359,24 @@ CLEANUP += $(NRV2B)
# build targets to get a serial number printed at the end of the
# build. Enable -DBUILD_SERIAL in order to see it when the code runs.
#
BUILDSERIAL_H = include/.buildserial.h
BUILDSERIAL_H = config/.buildserial.h
BUILDSERIAL_NOW = config/.buildserial.now
BUILDSERIAL_NEXT = config/.buildserial.next
$(BUILDSERIAL_H) :
@if [ ! -s $@ ]; then echo '#define BUILD_SERIAL_NUM 0' > $@; fi
@perl -pi -e 's/(BUILD_SERIAL_NUM)\s+(\d+)/"$${1} ".($${2}+1)/e' $@
$(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT) :
echo 1 > $@
bs : $(BUILDSERIAL_H)
@perl -n -e '/BUILD_SERIAL_NUM\s+(\d+)/ && ' \
-e 'print "Build serial number is $$1\n";' $<
$(BUILDSERIAL_H) : $(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT)
echo '#define BUILD_SERIAL_NUM $(shell cat $<)' > $@
ifeq ($(filter bs,$(MAKECMDGOALS)),bs)
.PHONY : $(BUILDSERIAL_H)
$(shell diff -q $(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT) > /dev/null || \
cp -f $(BUILDSERIAL_NEXT) $(BUILDSERIAL_NOW))
endif
# Ensure that include/.buildserial.h always exists, to solve the
# problem of bootstrapping a BUILD_SERIAL-enabled build.
#
ifeq ($(wildcard $(BUILDSERIAL_H)),)
$(shell $(TOUCH) $(BUILDSERIAL_H))
endif
bs : $(BUILDSERIAL_NOW)
@echo $$(( $(shell cat $<) + 1 )) > $(BUILDSERIAL_NEXT)
@echo "Build serial number is $(shell cat $<)"
# List of available architectures
#