Makefile error in WSL Ubuntu : no rule to make target

Question

I get the following error :

make : *** no rule to make target obj/Divers.o, needed by main. Stop

Here is what my makefile look like :

IDIR = include
ODIR = obj
SDIR = src
BDIR = bin

CC = g++
CFLAGS = -g -Wall -Wextra -std=c11 -I$(IDIR)

PROG = main

_DEP = Divers.h ArbresSyntaxiques.h
DEP = $(patsubst %,$(IDIR)/%,$(_DEP))

_OBJ = Divers.o ArbresSyntaxiques.o Main.o
OBJ = $(patsubst %,$(ODIR)/%,$(_OBJ))

.PHONY: run all remake clean delete

all: $(PROG)

run : all 
    ./$(PROG)

$(PROG) : $(OBJ)
    $(CC) $(CFLAGS) -o $@ $^ -lm

$(ODIR)/%.o : $(SDIR)/%.c $(DEP)
    $(CC) $(CFLAGS) -c -o $@ $<

clean :
    rm -f $(ODIR)/*.o

delete : clean
    rm $(PROG)

Finally my folder is structured like this :

include :
    ArbresSyntaxiques.h
    Divers.h
obj : (Empty)
src :
    AbresSyntaxiques.cpp
    Divers.cpp
    Main.cpp
makefile

Answer 1

Like @kiner_shah mentioned under the comments.

To compile C++ instead of C, the file extension obviously needs to be either .cpp or .c++ on the following line $(ODIR)/%.o : $(SDIR)/%.c $(DEP)

I also had a typo in what of my cpp files' name