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Replace make with $(MAKE) in Makefile

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According to GNU Make Manual,

Recursive make commands should always use the variable MAKE, not
the explicit command name "make".
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Integral 2024-11-11 13:57:31 +08:00
parent 9c39011c21
commit 56c16b9ba0
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1 changed files with 6 additions and 6 deletions
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lkmpg.tex
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@ -258,10 +258,10 @@ obj-m += hello-1.o
PWD := $(CURDIR) PWD := $(CURDIR)
all: all:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules $(MAKE) -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
clean: clean:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean $(MAKE) -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
\end{code} \end{code}
In \verb|Makefile|, \verb|$(CURDIR)| can set to the absolute pathname of the current working directory(after all \verb|-C| options are processed, if any). In \verb|Makefile|, \verb|$(CURDIR)| can set to the absolute pathname of the current working directory(after all \verb|-C| options are processed, if any).
@ -461,10 +461,10 @@ obj-m += hello-2.o
PWD := $(CURDIR) PWD := $(CURDIR)
all: all:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules $(MAKE) -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
clean: clean:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean $(MAKE) -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
\end{code} \end{code}
Now have a look at \src{drivers/char/Makefile} for a real world example. Now have a look at \src{drivers/char/Makefile} for a real world example.
@ -604,10 +604,10 @@ startstop-objs := start.o stop.o
PWD := $(CURDIR) PWD := $(CURDIR)
all: all:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules $(MAKE) -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
clean: clean:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean $(MAKE) -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
\end{code} \end{code}
This is the complete makefile for all the examples we have seen so far. This is the complete makefile for all the examples we have seen so far.