Generic C++ Makefile

CXX = g++
CXXFLAGS = -std=c++14 -g -Wall
LDFLAGS =

# We use this to
SOURCES = $(wildcard *.cpp)
HEADERS = $(wildcard *.hpp) $(wildcard *.h)
OBJECTS = $(patsubst %.cpp,%.o,$(SOURCES))

# Write the name of your program here
TARGET = hello

.PHONY: all clean

# This "phony" target says we want the target to be built
all: $(TARGET)

# This "phony" target removes all built files
clean:
    $(RM) *.o
    $(RM) $(TARGET)

# Tells make how to make target out of objects
$(TARGET): $(OBJECTS)
    $(CXX) -o $@ $(OBJECTS) $(LDFLAGS)

# Tells make how to make objects out of source code
# It also says when we change a header, recompile
# $< is the input, $@ is the output
%.o: %.cpp $(HEADERS)
    $(CXX) $(CXXFLAGS) -c $< -o $@