Makfile генерирует ошибки `(.text+0x0): множественное определение` и `(.text+0x44): неопределенная ссылка на` при связывании объектов .o

У меня есть следующий make-файл, с которым мне не удается связать объекты в окончательный исполняемый файл, хотя он отлично создает отдельные объектные файлы. Он выводит ошибки (.text+0x0): multiple definition и (.text+0x44): undefined reference to при построении основной цели.

# Set compiler
CC = gcc

# Include headers 
INC_HDR := -I. -IAPI/core -IAPI/platform

# Define final executable 
EXE := driver 

# List source
SRC := $(wildcard API/core/*.c) \
        $(wildcard API/platform/*.c) \
        main.c 

# List headers
HDR := $(wildcard API/core/*.h) \
        $(wildcard API/platform/*.h) 

# Derive objects
OBJ := $(patsubst %.c, %.o, $(SRC))

# Set flags 
CPPFLAGS := $(INC_HDR) -MMD -MP # -I is a preprocessor flag, not a compiler flag -MMD -MP
CFLAGS   := -Wall           # some warnings about bad code
LDFLAGS  := -L.             # -L is a linker flag
LDLIBS   := -lm             # Left empty if no libs are needed

.PHONY: all clean 

all: $(EXE)

$(EXE): $(OBJ) 
    @echo Linking $@
    $(CC) $(CPPFLAGS) $(CFLAGS) $(LDLIBS) $^ -o $@ 

$(OBJ): $(SRC) $(HDR)
    @echo Building $@ 
    $(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@

clean:
    @find . -type f -name '*.o' -delete
    @find . -type f -name '*.d' -delete

Этот вопрос довольно близок к другим сообщениям, но я пока не смог найти, в чем проблема.

В соответствии с запросом вывод make clean all:

Building API/core/VL53L1X_calibration.o
gcc -I. -IAPI/core -IAPI/platform -MMD -MP  -Wall                -c API/core/VL53L1X_calibration.c -o API/core/VL53L1X_calibration.o
Building API/core/VL53L1X_api.o
gcc -I. -IAPI/core -IAPI/platform -MMD -MP  -Wall                -c API/core/VL53L1X_calibration.c -o API/core/VL53L1X_api.o
Building API/platform/vl53l1_platform.o
gcc -I. -IAPI/core -IAPI/platform -MMD -MP  -Wall                -c API/core/VL53L1X_calibration.c -o API/platform/vl53l1_platform.o
Building main.o
gcc -I. -IAPI/core -IAPI/platform -MMD -MP  -Wall                -c API/core/VL53L1X_calibration.c -o main.o
Linking driver
gcc -I. -IAPI/core -IAPI/platform -MMD -MP  -Wall                -lm              API/core/VL53L1X_calibration.o API/core/VL53L1X_api.o API/platform/vl53l1_platform.o main.o -o driver 
API/core/VL53L1X_api.o: In function `VL53L1X_CalibrateOffset':
VL53L1X_calibration.c:(.text+0x0): multiple definition of `VL53L1X_CalibrateOffset'
API/core/VL53L1X_calibration.o:VL53L1X_calibration.c:(.text+0x0): first defined here
API/core/VL53L1X_api.o: In function `VL53L1X_CalibrateXtalk':
VL53L1X_calibration.c:(.text+0x170): multiple definition of `VL53L1X_CalibrateXtalk'
API/core/VL53L1X_calibration.o:VL53L1X_calibration.c:(.text+0x170): first defined here
API/platform/vl53l1_platform.o: In function `VL53L1X_CalibrateOffset':
VL53L1X_calibration.c:(.text+0x0): multiple definition of `VL53L1X_CalibrateOffset'
API/core/VL53L1X_calibration.o:VL53L1X_calibration.c:(.text+0x0): first defined here
API/platform/vl53l1_platform.o: In function `VL53L1X_CalibrateXtalk':
VL53L1X_calibration.c:(.text+0x170): multiple definition of `VL53L1X_CalibrateXtalk'
API/core/VL53L1X_calibration.o:VL53L1X_calibration.c:(.text+0x170): first defined here
main.o: In function `VL53L1X_CalibrateOffset':
VL53L1X_calibration.c:(.text+0x0): multiple definition of `VL53L1X_CalibrateOffset'
API/core/VL53L1X_calibration.o:VL53L1X_calibration.c:(.text+0x0): first defined here
main.o: In function `VL53L1X_CalibrateXtalk':
VL53L1X_calibration.c:(.text+0x170): multiple definition of `VL53L1X_CalibrateXtalk'
API/core/VL53L1X_calibration.o:VL53L1X_calibration.c:(.text+0x170): first defined here
/usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
API/core/VL53L1X_calibration.o: In function `VL53L1X_CalibrateOffset':
VL53L1X_calibration.c:(.text+0x44): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x5c): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x74): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x82): undefined reference to `VL53L1X_StartRanging'
VL53L1X_calibration.c:(.text+0xa3): undefined reference to `VL53L1X_CheckForDataReady'
VL53L1X_calibration.c:(.text+0xc0): undefined reference to `VL53L1X_GetDistance'
VL53L1X_calibration.c:(.text+0xce): undefined reference to `VL53L1X_ClearInterrupt'
VL53L1X_calibration.c:(.text+0xfa): undefined reference to `VL53L1X_StopRanging'
VL53L1X_calibration.c:(.text+0x14f): undefined reference to `VL53L1_WrWord'
API/core/VL53L1X_calibration.o: In function `VL53L1X_CalibrateXtalk':
VL53L1X_calibration.c:(.text+0x1cf): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x1dd): undefined reference to `VL53L1X_StartRanging'
VL53L1X_calibration.c:(.text+0x201): undefined reference to `VL53L1X_CheckForDataReady'
VL53L1X_calibration.c:(.text+0x21e): undefined reference to `VL53L1X_GetSignalRate'
VL53L1X_calibration.c:(.text+0x233): undefined reference to `VL53L1X_GetDistance'
VL53L1X_calibration.c:(.text+0x241): undefined reference to `VL53L1X_ClearInterrupt'
VL53L1X_calibration.c:(.text+0x26f): undefined reference to `VL53L1X_GetSpadNb'
VL53L1X_calibration.c:(.text+0x2c3): undefined reference to `VL53L1X_StopRanging'
VL53L1X_calibration.c:(.text+0x376): undefined reference to `VL53L1_WrWord'
API/core/VL53L1X_api.o: In function `VL53L1X_CalibrateOffset':
VL53L1X_calibration.c:(.text+0x44): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x5c): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x74): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x82): undefined reference to `VL53L1X_StartRanging'
VL53L1X_calibration.c:(.text+0xa3): undefined reference to `VL53L1X_CheckForDataReady'
VL53L1X_calibration.c:(.text+0xc0): undefined reference to `VL53L1X_GetDistance'
VL53L1X_calibration.c:(.text+0xce): undefined reference to `VL53L1X_ClearInterrupt'
VL53L1X_calibration.c:(.text+0xfa): undefined reference to `VL53L1X_StopRanging'
VL53L1X_calibration.c:(.text+0x14f): undefined reference to `VL53L1_WrWord'
API/core/VL53L1X_api.o: In function `VL53L1X_CalibrateXtalk':
VL53L1X_calibration.c:(.text+0x1cf): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x1dd): undefined reference to `VL53L1X_StartRanging'
VL53L1X_calibration.c:(.text+0x201): undefined reference to `VL53L1X_CheckForDataReady'
VL53L1X_calibration.c:(.text+0x21e): undefined reference to `VL53L1X_GetSignalRate'
VL53L1X_calibration.c:(.text+0x233): undefined reference to `VL53L1X_GetDistance'
VL53L1X_calibration.c:(.text+0x241): undefined reference to `VL53L1X_ClearInterrupt'
VL53L1X_calibration.c:(.text+0x26f): undefined reference to `VL53L1X_GetSpadNb'
VL53L1X_calibration.c:(.text+0x2c3): undefined reference to `VL53L1X_StopRanging'
VL53L1X_calibration.c:(.text+0x376): undefined reference to `VL53L1_WrWord'
API/platform/vl53l1_platform.o: In function `VL53L1X_CalibrateOffset':
VL53L1X_calibration.c:(.text+0x44): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x5c): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x74): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x82): undefined reference to `VL53L1X_StartRanging'
VL53L1X_calibration.c:(.text+0xa3): undefined reference to `VL53L1X_CheckForDataReady'
VL53L1X_calibration.c:(.text+0xc0): undefined reference to `VL53L1X_GetDistance'
VL53L1X_calibration.c:(.text+0xce): undefined reference to `VL53L1X_ClearInterrupt'
VL53L1X_calibration.c:(.text+0xfa): undefined reference to `VL53L1X_StopRanging'
VL53L1X_calibration.c:(.text+0x14f): undefined reference to `VL53L1_WrWord'
API/platform/vl53l1_platform.o: In function `VL53L1X_CalibrateXtalk':
VL53L1X_calibration.c:(.text+0x1cf): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x1dd): undefined reference to `VL53L1X_StartRanging'
VL53L1X_calibration.c:(.text+0x201): undefined reference to `VL53L1X_CheckForDataReady'
VL53L1X_calibration.c:(.text+0x21e): undefined reference to `VL53L1X_GetSignalRate'
VL53L1X_calibration.c:(.text+0x233): undefined reference to `VL53L1X_GetDistance'
VL53L1X_calibration.c:(.text+0x241): undefined reference to `VL53L1X_ClearInterrupt'
VL53L1X_calibration.c:(.text+0x26f): undefined reference to `VL53L1X_GetSpadNb'
VL53L1X_calibration.c:(.text+0x2c3): undefined reference to `VL53L1X_StopRanging'
VL53L1X_calibration.c:(.text+0x376): undefined reference to `VL53L1_WrWord'
main.o: In function `VL53L1X_CalibrateOffset':
VL53L1X_calibration.c:(.text+0x44): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x5c): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x74): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x82): undefined reference to `VL53L1X_StartRanging'
VL53L1X_calibration.c:(.text+0xa3): undefined reference to `VL53L1X_CheckForDataReady'
VL53L1X_calibration.c:(.text+0xc0): undefined reference to `VL53L1X_GetDistance'
VL53L1X_calibration.c:(.text+0xce): undefined reference to `VL53L1X_ClearInterrupt'
VL53L1X_calibration.c:(.text+0xfa): undefined reference to `VL53L1X_StopRanging'
VL53L1X_calibration.c:(.text+0x14f): undefined reference to `VL53L1_WrWord'
main.o: In function `VL53L1X_CalibrateXtalk':
VL53L1X_calibration.c:(.text+0x1cf): undefined reference to `VL53L1_WrWord'
VL53L1X_calibration.c:(.text+0x1dd): undefined reference to `VL53L1X_StartRanging'
VL53L1X_calibration.c:(.text+0x201): undefined reference to `VL53L1X_CheckForDataReady'
VL53L1X_calibration.c:(.text+0x21e): undefined reference to `VL53L1X_GetSignalRate'
VL53L1X_calibration.c:(.text+0x233): undefined reference to `VL53L1X_GetDistance'
VL53L1X_calibration.c:(.text+0x241): undefined reference to `VL53L1X_ClearInterrupt'
VL53L1X_calibration.c:(.text+0x26f): undefined reference to `VL53L1X_GetSpadNb'
VL53L1X_calibration.c:(.text+0x2c3): undefined reference to `VL53L1X_StopRanging'
VL53L1X_calibration.c:(.text+0x376): undefined reference to `VL53L1_WrWord'
collect2: error: ld returned 1 exit status
makefile:33: recipe for target 'driver' failed
make: *** [driver] Error 1