Link object with dependencies - c++

Question

my project tree:
./main.h
./main.cpp
./Makefile
./sources/myclass.cpp
./includes/myclass.h
./objects/
#./Makefile
BUILD = myexecutable
LDFLAGS = -lsfml-graphics -lsfml-window -lsfml-audio -lsfml-system
CXXFLAGS = -Wall
RM = rm -rf
OBJECTS = main.o $(addprefix $(OBJ_DIR), myclass.o)
OBJ_DIR = objects/
SRC_DIR = sources/
.PHONY: clean
all: clean $(BUILD)
$(BUILD): $(OBJECTS)
$(CXX) $(LDFLAGS) -o $(BUILD) $(OBJECTS)
$(OBJ_DIR)%.o: $(SRC_DIR)%.cpp
$(CXX) -MM $(CXXFLAGS) -c $< > $(OBJ_DIR)$*.d # New line for create myclass.d
$(CXX) $(CXXFLAGS) -c $< -o $#
clean:
$(RM) $(BUILD) $(OBJ_DIR)*.o
when i try to run make i get this:
$ make
rm -rf myexecutable objects/*.o
g++ -MMD -Wall -c sources/myclass.cpp -o objects/myclass.o
g++ -lsfml-graphics -lsfml-window -lsfml-audio -lsfml-system -o myexecutable main.o objects/myclass.o
main.o: In function `main':
main.cpp:(.text+0x176): undefined reference to `mynamespace::MyClass::method()'
main.cpp:(.text+0x185): undefined reference to `mynamespace::MyClass::otherMethod()'
main.cpp:(.text+0x406): undefined reference to `mynamespace::MyClass::~MyClass()'
main.cpp:(.text+0x50e): undefined reference to `mynamespace::MyClass::~MyClass()'
collect2: ld devolvió el estado de salida 1
make: *** [myexecutable] Error 1
how to fix the main.o dependency of myclass.o?
Edit
i added a new line for create *.d dependency *.d files for i dont know how to use

Answer 1

Correct to:
LIBES = -lsfml-graphics -lsfml-window -lsfml-audio -lsfml-system
$(BUILD): $(OBJECTS)
$(CXX) -o $(BUILD) $(OBJECTS) $(LIBES)
The LIBES should replace LDFLAGS and the two lines for BUILD should be changed.
Order of linking matters a lot: put your object files, then the libraries from high-level to lowest-level system libraries.