linux - Makefile:制作期间出错

我有以下两个makefile：

Makefile1：

SUBDIRS = src
SDIRS=src
TOP?=..
RECURSIVE_MAKE= [ -n "$(SDIRS)" ] && for i in $(SDIRS) ; do \
            (cd $$i && echo "making $$target in $(DIR)/$$i..." && \
            $(MAKE) -e TOP=$(TOP)/.. $$target INCLUDES='$(INCLUDES)') || exit 1; \
        done;

subdirs:
    @target=all; $(RECURSIVE_MAKE)

all: subdirs

include $(BUILD_TOP)/build_control/symstream/subdirs.mk

Makefile2（subdirs.mk）：

#   This is a stand-alone file to distribute targets to
#   sub-directories. Include this file alone.

#  Make bug: It loses track of if/endif over a $(eval) call.
ifndef __subdirs_include
__subdirs_include = yes

#   This only works for the standard targets defined in $(TARGETS)
#   in utils.mk. However this list can be extended with +=.

install:: install-hdrs

include $(BUILD_TOP)/build_control/symstream/utils.mk
include $(BUILD_TOP)/build_control/symstream/platform.mk

#  This creates a recursion rule for each pair of target and subdirectory.
#  The target for doing T in directory D is named T+D.
#  If there is a "$(D_needs) = subdirs" then the subdirs become prerequisites
#  of D.
define __target_subdir
.PHONY:: $(1)+$(2)
$(1)+$(2) :: $(3); +$(MAKE) -C $(2) $(1)
endef

$(foreach t,$(TARGETS),\
    $(foreach d,$(strip $(SUBDIRS) $(SUBDIRS_y)),\
    $(eval $(call __target_subdir,$(t),$(d),$(patsubst %,$(t)+%,$($(d)_needs))))))

$(foreach t,$(TARGETS),\
    $(foreach d,$(strip $(SUBDIRS) $(SUBDIRS_y)),$(eval $(t)::$(t)+$(d))))


endif # __subdirs_include

执行Makefile1时出现以下错误：

subdirs.mk:30: *** target file `all' has both : and :: entries.  Stop.

有人可以帮忙吗？

最佳答案

您应该发布subdirs.mk以确保，但是好像您有普通的双栏
目标all的规则。

从GNU make manual：


  当目标出现在多个规则中时，所有规则必须是
  相同类型：全部为普通或全部为双冒号。

关于linux - Makefile:制作期间出错，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/17312725/