Sources from subdirectories in Makefile

by

This should do it:

SOURCES = $(wildcard *.cpp) $(wildcard */*.cpp)

If you change you mind and want a recursive solution (i.e. to any depth), it can be done but it involves some of the more powerful Make functions. You know, the ones that allow you to do things you really shouldn’t.

EDIT:
Jack Kelly points out that $(wildcard **/*.cpp) works to any depth, at least on some platforms, using GNUMake 3.81. (How he figured that out, I have no idea.)

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