Makefile Template (executable + tests)

Makefile

# TODO:
#   - build modes: release, debug

CXX := g++

EXECUTABLE := project.exe
EXECUTABLE_TESTS := project_tests.exe

INCLUDE := -I./deps
           
SOURCES := 
MAIN := main.cpp
TESTS := tests.cpp

OBJECTS := $(SOURCES:.cpp=.o)
MAIN_OBJECT := $(MAIN:.cpp=.o)
TESTS_OBJECT := $(TESTS:.cpp=.o)
MAIN_BUILD := $(OBJECTS) $(MAIN_OBJECT)
TESTS_BUILD := $(OBJECTS) $(TESTS_OBJECT)

CXXFLAGS := -std=c++14 \
            -Wall \
            -Wextra \
            -Wshadow \
            -Wnon-virtual-dtor \
            -pedantic \
            -Wold-style-cast \
            -Wcast-align \
            -Wunused \
            -Woverloaded-virtual \
            -Weffc++ \
            -Wconversion \
            -Werror \
            -O3 \
            -march=native

all: print_build_config $(SOURCES) $(EXECUTABLE)

print_build_config:
	@echo "[ Flags       ] $(CXXFLAGS)"
	@echo "[ Directories ] $(INCLUDE)"

test: $(SOURCES) $(EXECUTABLE_TESTS)

$(EXECUTABLE): $(MAIN_BUILD)
	@$(CXX) $(MAIN_BUILD) -o $@
	@echo "[ Link        ] $@"

$(EXECUTABLE_TESTS): $(TESTS_BUILD)
	@$(CXX) $(TESTS_BUILD) -o $@
	@echo "[ Link        ] $@"

.cpp.o:
	@$(CXX) $(CXXFLAGS) $(INCLUDE) $< -c -o $@
	@echo "[ Build       ] $@"

clean:
	@rm -f $(OBJECTS) $(MAIN_OBJECT) $(TESTS_OBJECT) $(EXECUTABLE) $(EXECUTABLE_TESTS)

re: clean all test

.PHONY: all print_build_config test $(EXECUTABLE) $(EXECUTABLE_TESTS) clean re

Todo:

• Replace .cpp.o rule with modern equivalent
• Build using absolute paths
• Add rules for gcov
• Add optional LTO