eval of foreach loop of a define runs first target more than once

[Utku Ozcan]

In following Makefile, "gmake" returns me always the message

unix> gmake
gmake: `codefile_list_CODE' is up to date.

.. as though the target generated for first member of the list
CODE_SRCS_LIST is executed twice.
I see the files are generated correctly, but "make" tries to generate
the first file 2nd time.

However the define "write_list_to_file" is has following code,

define write_list_to_file
$(2):
        printf "$(1)\n"
endef

... ie, no $(foreach) code, the output is

printf "CODE_SRCS\n" codefile_list_CODE_part01:
CODE_SRCS
printf "CODE_part01_SRCS\n" codefile_list_CODE_part02:
CODE_part01_SRCS
printf "CODE_part02_SRCS\n" codefile_list_CODE_part03:
CODE_part02_SRCS
printf "CODE_part03_SRCS\n"
CODE_part03_SRCS

I had expected that first iteration must be done again, like above,
however it isn't.

Shall I ignore "up to date" message in the original code?
If not, where is my mistake?

Why is the call behaviour different in both defines?

#### Makefile ####
CODE_SRCS_LIST := \
  CODE \
  CODE_part01 \
  CODE_part02 \
  CODE_part03

CODE_SRCS :=
CODE_SRCS += a
CODE_SRCS += b

CODE_part01_SRCS :=
CODE_part01_SRCS += c
CODE_part01_SRCS += d

CODE_part02_SRCS :=
CODE_part02_SRCS += e
CODE_part02_SRCS += f

CODE_part03_SRCS :=
CODE_part03_SRCS += g
CODE_part03_SRCS += h

define write_list_to_file
$(2):
   $(foreach file,$($1),$(shell echo $(file) >> $(2)))
endef

$(eval $(foreach lib,${CODE_SRCS_LIST},$(call
write_list_to_file,$(lib)_SRCS,codefile_list_$(lib))))

#### end of the file ####