Changed Makefile so everything is beter organised.

Makefile

@@ -1,41 +1,76 @@
-# Declaration of variables
+CXX ?= g++
-C = clang
-COMMON_FLAGS = -Wall -MMD
-C_FLAGS = $(COMMON_FLAGS)
-CC = clang++
-CC_FLAGS = $(COMMON_FLAGS) -std=c++17 # -funsafe-math-optimizations
-LD_FLAGS =
-INCLUDES =
 
-# File names
+# path #
-EXEC = run
+SRC_PATH = src
-CSOURCES = $(wildcard *.c)
+BUILD_PATH = build
-COBJECTS = $(CSOURCES:.c=.o)
+BIN_PATH = $(BUILD_PATH)/bin
-SOURCES = $(wildcard *.cpp)
-OBJECTS = $(SOURCES:.cpp=.o)
 
-# Main target
+# executable #
-$(EXEC): $(COBJECTS) $(OBJECTS)
+BIN_NAME = CppQuickStart
-	$(CC) $(COBJECTS) $(OBJECTS) -o $(EXEC) $(LD_FLAGS)
 
-# To obtain C++ object files
+# extensions #
-%.o: %.cpp
+SRC_EXT = cpp
-	$(CC) $(INCLUDES) $(CC_FLAGS) -o $@ -c $<
 
-# To obtain C object files
+# code lists #
-%.o: %.c
+# Find all source files in the source directory, sorted by
-	$(C) $(INCLUDES) $(C_FLAGS) -o $@ -c $<
+# most recently modified
+SOURCES = $(shell find $(SRC_PATH) -name '*.$(SRC_EXT)' | sort -k 1nr | cut -f2-)
+# Set the object file names, with the source directory stripped
+# from the path, and the build path prepended in its place
+OBJECTS = $(SOURCES:$(SRC_PATH)/%.$(SRC_EXT)=$(BUILD_PATH)/%.o)
+# Set the dependency files that will be used to add header dependencies
+DEPS = $(OBJECTS:.o=.d)
 
--include $(SOURCES:%.cpp=%.d)
+# flags #
--include $(CSOURCES:%.c=%.d)
+COMPILE_FLAGS = -std=c++17 -Wall -Wextra -g # -O3 -funsafe-math-optimizations
+INCLUDES = -I include/ -I /usr/local/include
+# Space-separated pkg-config libraries used by this project
+LIBS =
 
-# To generate the documentation
+.PHONY: default_target
+default_target: release
+
+.PHONY: release
+release: export CXXFLAGS := $(CXXFLAGS) $(COMPILE_FLAGS)
+release: dirs
+	@$(MAKE) all
+
+.PHONY: dirs
+dirs:
+	@echo "Creating directories"
+	@mkdir -p $(dir $(OBJECTS))
+	@mkdir -p $(BIN_PATH)
+
+.PHONY: clean
+clean:
+	@echo "Deleting $(BIN_NAME) symlink"
+	@$(RM) $(BIN_NAME)
+	@echo "Deleting directories"
+	@$(RM) -r $(BUILD_PATH)
+	@$(RM) -r $(BIN_PATH)
+
+# checks the executable and symlinks to the output
+.PHONY: all
+all: $(BIN_PATH)/$(BIN_NAME)
+	@echo "Making symlink: $(BIN_NAME) -> $<"
+	@$(RM) $(BIN_NAME)
+	@ln -s $(BIN_PATH)/$(BIN_NAME) $(BIN_NAME)
+
+.PHONY: doc
 doc:
 	doxygen Doxyfile
 
-# To remove generated files
+# Creation of the executable
-clean:
+$(BIN_PATH)/$(BIN_NAME): $(OBJECTS)
-	rm -f $(COBJECTS) $(OBJECTS) $(SOURCES:%.cpp=%.d) $(CSOURCES:%.c=%.d)
+	@echo "Linking: $@"
+	$(CXX) $(OBJECTS) -o $@ ${LIBS}
 
-cleaner: clean
+# Add dependency files, if they exist
-	rm -f $(EXEC)
+-include $(DEPS)
+
+# Source file rules
+# After the first compilation they will be joined with the rules from the
+# dependency files to provide header dependencies
+$(BUILD_PATH)/%.o: $(SRC_PATH)/%.$(SRC_EXT)
+	@echo "Compiling: $< -> $@"
+	$(CXX) $(CXXFLAGS) $(INCLUDES) -MP -MMD -c $< -o $@