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VERSION := $(shell dpkg-parsechangelog | sed -n 's/^Version: //p')
CC ?= gcc
CFLAGS += -Wall -Wextra -D_REENTRANT -fpic # -D_FILE_OFFSET_BITS=64 -D_TIME_BITS=64
ifeq (,$(INSTALL_PROGRAM))
INSTALL_PROGRAM := "install"
endif
prefix = /usr
libdir = $(prefix)/lib
ifneq (,$(libarch))
# The `*-*' pattern matches to both hurd-i386 and e.g. i386-linux-gnu
marchpt = /*-*
endif
bindir = $(prefix)/bin
mandir = $(prefix)/share/man
all compile: datefudge datefudge.so datefudge.1
install: datefudge datefudge.so datefudge.1
install -d $(DESTDIR)$(libdir)/$(libarch)/datefudge
$(INSTALL_PROGRAM) -m 644 datefudge.so $(DESTDIR)$(libdir)/$(libarch)/datefudge/datefudge.so
install -d $(DESTDIR)$(bindir)
$(INSTALL_PROGRAM) -m 755 datefudge $(DESTDIR)$(bindir)
install -d $(DESTDIR)$(mandir)/man1
install -m 644 datefudge.1 $(DESTDIR)$(mandir)/man1
format-sources:
clang-format --style=LLVM -i *.c
datefudge: datefudge.sh
datefudge.1: datefudge.man
datefudge datefudge.1:
sed -e 's,@VERSION@,$(VERSION),g; s,@MULTIARCH_PATTERN@,$(marchpt),g; s,@LIBDIR@,$(libdir),g;' \
< $< > $@
datefudge.so: datefudge.o datefudge64.o
$(CC) $(LDFLAGS) -o $@ -shared $^ -ldl -lc
%.o: %.c datefudge.c Makefile
$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<
clean:
rm -f datefudge*.o datefudge.so datefudge datefudge.1
# The first run may possibly fail when it's around midnight, that's why it's run twice.
test: compile
@echo -n "Running a simple date test... " ;\
export TZ=UTC ;\
ret1=1; ret2=1 ;\
for i in 1 2; do \
export DATEFUDGE=`LC_ALL=C date --date='yesterday 0:00' +%s` ;\
dt=`LC_ALL=C LD_PRELOAD=$(CURDIR)/datefudge.so date --date=12:15 +%F.%T` ;\
exp="1970-01-02.12:15:00" ;\
[ "$$dt" != "$$exp" ] || { echo "OK"; ret1=0; break; } ;\
echo "failed: expected: $$exp, actual: $$dt" ;\
[ $$i = 2 ] || { echo -n " retrying... "; sleep 2; } ;\
done ;\
echo -n "Running a simple perl localtime() test... " ;\
pscr='@t=localtime(time);$$t[5]+=1900;$$t[4]++;printf "%04d-%02d-%02d\n",$$t[5],$$t[4],$$t[3];';\
for i in 1 2; do \
export DATEFUDGE=`LC_ALL=C date --date='yesterday 0:00' +%s` ;\
dt=`LD_PRELOAD=$(CURDIR)/datefudge.so perl -e "$$pscr"` ;\
exp="1970-01-02" ;\
[ "$$dt" != "$$exp" ] || { echo "OK"; ret2=0; break; } ;\
echo "failed: expected: $$exp, actual: $$dt" ;\
[ $$i = 2 ] || { echo -n " retrying... "; sleep 2; } ;\
done ;\
exit `expr $$ret1 + $$ret2`;
.PHONY: all compile install test format-sources
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