Error in makefile (“no input files”)

Question

This is my absolute first time ever making a makefile, and I\'m really trying to understand the process.

I\'m trying to create a very simple makefile for a C++ project w

Answer 1

IDIR=include .

is the first problem. Replace it by:

IDIR=include

With your code CFLAGS is expanded as:

-Iinclude .

It does not make sense, I'm afraid. The second problem is:

DEPS=$(patsubst %,$(IDIR)/,%(_DEPS))

which should probably be:

DEPS=$(patsubst %,$(IDIR)/%,$(_DEPS))

and would expand as:

DEPS=include/hello.h

if you fix the first problem, else as:

DEPS=include ./hello.h

which does not make sense neither. The cumulated effect of these two errors are strange recipes (I didn't try to expand them by hand) that probably trigger a make implicit rule with wrong parameters.