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这里是preeny的Makefile:为什么GNU认为目标总是过时?
COMMON_DEPS=logging.c
PLATFORM?=
all: desock.so defork.so dealarm.so patch.so derand.so desrand.so deptrace.so desock_dup.so
desock.so: desock.c $(COMMON_DEPS)
bash build_so.sh [email protected] $(PLATFORM) $^ -lpthread
desock_dup.so: desock_dup.c $(COMMON_DEPS)
bash build_so.sh [email protected] $(PLATFORM) $^ -ldl
defork.so: defork.c $(COMMON_DEPS)
bash build_so.sh [email protected] $(PLATFORM) $^
dealarm.so: dealarm.c $(COMMON_DEPS)
bash build_so.sh [email protected] $(PLATFORM) $^
derand.so: derand.c $(COMMON_DEPS)
bash build_so.sh [email protected] $(PLATFORM) $^
desrand.so: desrand.c $(COMMON_DEPS)
bash build_so.sh [email protected] $(PLATFORM) $^ -ldl
deptrace.so: deptrace.c $(COMMON_DEPS)
bash build_so.sh [email protected] $(PLATFORM) $^
patch.so: patch.c $(COMMON_DEPS)
bash build_so.sh [email protected] $(PLATFORM) $^ -lini_config
clean:
rm -f *.o
rm -f *.so
出于某种原因,所有的.so文件被重建每次我打电话make
时间,即使我不会更改源文件。这是为什么?
来源:https://github.com/zardus/preeny/blob/b5d8b9/src/Makefile
确实。这是[Makefile的规则]的规则2(http://make.mad-scientist.net/papers/rules-of-makefiles/#rule2)(GNU make维护者的规则)。 –