no order aim consoleio.c

in , i've found djgpp wholly accept dos management line impression limit. work around limitation, i've solid try makefile grant me . slight hacking together makefile contrast it, i've opposing uncanny error. makefile follows:

as  :=  nasm
cc  :=  gcc
ld  :=  ld

target      :=  $(shell basename $(curdir))
build       :=  build
sources     :=  source

cflags  :=  -wall -o -fstrength-reduce -fomit-frame-pointer -finline-functions \
            -nostdinc -fno-builtin -i./include
asflags :=  -f aout

export cost   :=  $(curdir)/$(target)

cfiles      :=  $(foreach dir,$(sources),$(notdir $(wildcard $(dir)/*.c)))
sfiles      :=  $(foreach dir,$(sources),$(notdir $(wildcard $(dir)/*.s)))

sobjs   :=  $(sfiles:.s=.o)
cobjs   :=  $(cfiles:.c=.o)
objs    :=  $(sobjs) $(cobjs)

build   :   $(target).img

$(target).img   :   $(target).bin
    concat.py

$(target).bin   :   $(objs)
    $(ld) -t link.ld -o $@ $^

$(sobjs)    :   %.o :   %.asm
    $(as) $(asflags) $< -o $@

$(cobjs)    :   %.o :   %.c
    $(cc) -c $< $(cflags) -o $@

when attempting run it, i accept error:

make: *** order aim `consoleio.c', indispensable `consoleio.o'.  stop.

what i don't know since it's perplexing order .c files. i understand, record there, should only it. i make need order .c files?