使用递归 make 时如何避免这些重复？

发布于 2024-12-01 20:57:36 字数 416 浏览 1 评论 0原文

假设我有一个包含两个或多个子文件夹 foo、bar 等的项目。我在项目的根目录下有一个 Makefile，而且在每个子目录中。

我希望某些目标（例如 all、clean 等）在每个子目录中递归运行。我的顶级 Makefile 看起来像这样：

all:
    $(MAKE) -C foo all
    $(MAKE) -C bar all

clean:
    $(MAKE) -C foo clean
    $(MAKE) -C bar clean

在我看来，这里有很多重复。 有没有办法可以避免 Makefile 中如此繁琐的重复？

原文

Suppose I have a project with two or more subfolders foo, bar, etc. I have a Makefile at the root of the project, and also in each subdirectory.

I would like to have certain targets (e.g. all, clean, etc) to run recursively in each subdirectory. My top-level Makefile looks like this:

all:
    $(MAKE) -C foo all
    $(MAKE) -C bar all

clean:
    $(MAKE) -C foo clean
    $(MAKE) -C bar clean

Seems to me there's a lot of duplication going on here. Is there a way I can avoid such tedious duplication in my Makefiles?

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故笙诉离歌 2024-12-08 20:57:36

这个怎么样：

SUBDIRS=foo bar
all clean:
        for dir in $(SUBDIRS) ; do \
            $(MAKE) -C $dir $@ ; \
        done

How about this:

SUBDIRS=foo bar
all clean:
        for dir in $(SUBDIRS) ; do \
            $(MAKE) -C $dir $@ ; \
        done

回复收藏 0 原文

许仙没带伞 2024-12-08 20:57:36

有点吓人：

SUBDIRS=foo bar
SUBDIR_TARGETS=all clean

define subdir_rule
$(2): $(1)-$(2)
$(1)-$(2):
    make -C $(1) $(2)
endef

$(foreach targ,$(SUBDIR_TARGETS),\
    $(foreach dir,$(SUBDIRS),\
        $(eval $(call subdir_rule,$(dir),$(targ)))))

A bit scary:

SUBDIRS=foo bar
SUBDIR_TARGETS=all clean

define subdir_rule
$(2): $(1)-$(2)
$(1)-$(2):
    make -C $(1) $(2)
endef

$(foreach targ,$(SUBDIR_TARGETS),\
    $(foreach dir,$(SUBDIRS),\
        $(eval $(call subdir_rule,$(dir),$(targ)))))

回复收藏 0 原文

复古式 2024-12-08 20:57:36

我是这样做的：

SUBDIRS=foo bar baz

TARGETS = clean all whatever
.PHONY:$(TARGETS)

# There really should be a way to do this as "$(TARGETS):%:TARG=%" or something...
all: TARG=all
clean: TARG=clean
whatever: TARG=whatever

$(TARGETS): $(SUBDIRS)
    @echo $@ done

.PHONY: $(SUBDIRS)
$(SUBDIRS):
    @$(MAKE) -s -C $@ $(TARG)

Here's how I'd do it:

SUBDIRS=foo bar baz

TARGETS = clean all whatever
.PHONY:$(TARGETS)

# There really should be a way to do this as "$(TARGETS):%:TARG=%" or something...
all: TARG=all
clean: TARG=clean
whatever: TARG=whatever

$(TARGETS): $(SUBDIRS)
    @echo $@ done

.PHONY: $(SUBDIRS)
$(SUBDIRS):
    @$(MAKE) -s -C $@ $(TARG)

回复收藏 0 原文

~没有更多了~