makefile里面的$<是代表什么？
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解决时间 2021-11-17 06:03
- 提问者网友：留有余香
- 2021-11-16 14:49
makefile里面的$<是代表什么？
最佳答案
- 五星知识达人网友：患得患失的劫
- 2021-11-16 15:34
$<是第一个"prerequisite", 不知道怎么翻译，就是target:后面的列表里的第一个.
Often the prerequisites include header files as well, which you do
not want to mention in the recipe. The automatic variable `$<' is just
the first prerequisite:
VPATH = src:../headers
foo.o : foo.c defs.h hack.h
cc -c $(CFLAGS) $< -o $@
这里$<就是foo.c
Often the prerequisites include header files as well, which you do
not want to mention in the recipe. The automatic variable `$<' is just
the first prerequisite:
VPATH = src:../headers
foo.o : foo.c defs.h hack.h
cc -c $(CFLAGS) $< -o $@
这里$<就是foo.c
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