CODEWITHSUNDEEP
makefilemingw
das_j
das_j

Reputation: 4794

Make Pattern Rule not recognized

I'm currently writing a makefile that is able to compile different targets (Like Debug, Development, Release). The linking and compiling rules look like that:

$(DEVELOPMENT_OUT): $(subst rep,development,$(OBJS))
    g++ -o $(DEVELOPMENT_OUT) $(subst rep,development,$(OBJS))

obj/development/%.o: src/%.cpp
    g++ -c -MMD -MP -MF"$(@:%.o=%.d)" -MT"$(@:%.o=%.d)" -o "$@" "$<"

Now, I get this output:

make: *** No rule to make target 'obj/development/Main.o', needed by 'bin/Development.exe'.  Stop.

But shouldn't the pattern rule apply for the Main.o?

I use GNU Make 3.82.90 of MinGW.

Upvotes: 0

Views: 227

Answers (1)

MadScientist
MadScientist

Reputation: 100856

There's not enough information here to say why it doesn't work. If you're sure you have a file src/Main.cpp then make should choose that rule. Is the cpp file a source file, or a generated file? If it's generated then maybe the real problem is lower down, where the generating happens. You can try using make -d to see what make is doing and why it doesn't like this rule.

Upvotes: 1

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