结合使用OpenCV库和Makefile的C编译程序

Question

Hi I have project in CLion written in C language that uses OpenCV library . I have configured it with CMake and it compiles and runs very well. But I also have my own Makefile in directory, now I would like to add to this Makefile support for OpenCV library .

Here are lines I have added to this Makefile:

# libraries
# OpenCV
OPENCV_CFLAGS = `pkg-config —-cflags opencv` 
OPENCV_LIBS = `pkg-config —-libs opencv`

and then:

$(TARGET): main.c $(LIBRARY) $(TEST_SOURCE_FILES)
    $(CC) $(CFLAGS) -o $(TARGET) main.c $(LIBRARY) $(TEST_SOURCE_FILES) $(UNIT_TESTS_LIBRARY) $(OPENCV_LIBS) $(OPENCV_CFLAGS)

While I am doing make -f make.txt it doesn't compile and the problem is:

fatal error: 'cv.h' file not found
#include <cv.h>

I also try to use this:

# include headers 
CFLAGS += -I/usr/local/include/opencv

But despite cv.g has been found there is another error:

/usr/local/include/opencv/cv.h:63:10: fatal error: 'opencv2/core/core_c.h' file not found
#include "opencv2/core/core_c.h"

No I changed this to:

# include headers 
CFLAGS += -I/usr/local/include

and also #include<cv.h> to #include<opencv/cv.h> no there no error message about not found header files, but some linking problems like this:

Undefined symbols for architecture x86_64:
  "_cvCreateImage", referenced from:

Answer 1

Ok I have solved the problem I make this in Makefile:

# include headers
# CFLAGS += -I/usr/local/include

# libraries
# OpenCV
OPENCV_LIBS = `pkg-config --cflags --libs opencv`

and than while compiling target:

$(TARGET): main.c $(LIBRARY) $(TEST_SOURCE_FILES)
    $(CC) $(CFLAGS) -o $(TARGET) main.c $(LIBRARY) $(TEST_SOURCE_FILES) $(UNIT_TESTS_LIBRARY) $(OPENCV_LIBS)