+DEBUG_FLAGS = -g3 -O0
+PROFILE_FLAGS = -DNDEBUG -O1 -g3
+RELEASE_FLAGS = -DNDEBUG -O2
+
+SOURCE_DIR := src
+DEBUG_DIR := build/debug
+PROFILE_DIR := build/profile
+RELEASE_DIR := build/release
+DIR := $(RELEASE_DIR) $(DEBUG_DIR) $(PROFILE_DIR) build
+
+LIB_SRC := $(wildcard $(SOURCE_DIR)/*/*.cpp)
+BIN_SRC := $(wildcard $(SOURCE_DIR)/*.cpp)
+SRC := $(LIB_SRC) $(BIN_SRC)
+RELEASE_OBJ := $(patsubst $(SOURCE_DIR)/%.cpp, $(RELEASE_DIR)/%.o, $(SRC))
+DEBUG_OBJ := $(patsubst $(SOURCE_DIR)/%.cpp, $(DEBUG_DIR)/%.o, $(SRC))
+PROFILE_OBJ := $(patsubst $(SOURCE_DIR)/%.cpp, $(PROFILE_DIR)/%.o, $(SRC))
+RELEASE_DEP := $(RELEASE_OBJ:.o=.d)
+DEBUG_DEP := $(DEBUG_OBJ:.o=.d)
+PROFILE_DEP := $(PROFILE_OBJ:.o=.d)
+RELEASE_BIN := blank
+DEBUG_BIN := blank.debug
+PROFILE_BIN := blank.profile
+OBJ := $(RELEASE_OBJ) $(DEBUG_OBJ) $(PROFILE_OBJ)
+DEP := $(RELEASE_DEP) $(DEBUG_DEP) $(PROFILE_DEP)
+BIN := $(RELEASE_BIN) $(DEBUG_BIN) $(PROFILE_BIN)
+
+release: $(RELEASE_BIN)