This is my Makefile:
----------------------------------------------------------------
CROSS_PREFIX = mips-elf-
CC = $(CROSS_PREFIX)gcc
LD = $(CROSS_PREFIX)ld
OBJCOPY = $(CROSS_PREFIX)objcopy
OBJDUMP = $(CROSS_PREFIX)objdump
SRCDIR = src/a src/b src/c
VPATH = $(SRCDIR)
CC_OPTS =
SRC_C = $(foreach dir, $(SRCDIR), $(wildcard $(dir)/*.c))
SRC_S = $(foreach dir, $(SRCDIR), $(wildcard $(dir)/*.S))
SRC = $(SRC_C) $(SRC_S)
OBJ_C = $(foreach file, $(notdir $(patsubst %.c, %.o, $(SRC_C))), $(file) )
OBJ_S = $(foreach file, $(notdir $(patsubst %.S, %.o, $(SRC_S))), $(file) )
OBJ = $(OBJ_C) $(OBJ_S)
#TARGET = AAXX.a
.PHONY : all clean
all: $(TARGET)
$(TARGET): $(OBJ)
mips-elf-ar rcv $@ $(OBJ)
%.o: %.c
$(CC) $(CC_OPTS) -c -o $@ $<
%.o: %.S
$(CC) $(CC_OPTS_A) -c -o $@ $<
clean:
rm -f $(TARGET) *.o
TARGET = AAXX.a
----------------------------------------------------------------
And I run `make'
$make
make: Nothing to be done for `all'.
My expected target AAXX.a is not produced. I think `make' resolve the variable
TARGET as null when it checks the target `all', so that it thinks nothing to be
done for `all'.
Must I place the variable TARGET assignment before the target `all' in the
Makefile?
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