次の 2 つのメイクファイルがあります。
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
Makefile1 を実行すると、次のエラーが発生します。
subdirs.mk:30: *** target file `all' has both : and :: entries. Stop.
誰かがこれを手伝ってくれませんか？