Makefile

NAME		:= tetris

CXX		:= g++
SIZE		:= size
DEBUGGER	:= ddd
DEBUGGERFLAGS	:=
# Default target is debug
ifeq ($(TARGET),)
TARGET=debug
endif

# Warning flags
WARNFLAGS 	:= -W -Wall -pedantic-errors -Wextra \
			-Wformat -Wformat-nonliteral -Wpointer-arith \
			-Wcast-align -Wconversion

# Flags for the debug build
DEBUGFLAGS	:= -ggdb 
# Optimize flags
OPTIFLAGS	:= -Os
# Include
INCLUDE		:= $(shell pkg-config pkg-config --cflags gtkmm-2.4)
# Linker flags
ELDFLAGS	:= $(shell pkg-config pkg-config --libs gtkmm-2.4)
LDFLAGS		:= $(ELDFLAGS) 

# Flags depend on target
ifeq ($(TARGET),debug)
CXXFLAGS	:= $(DEBUGFLAGS) $(DEBUGFLAGS) $(WARNFLAGS) $(OPTIFLAGS) $(INCLUDE)
else
CXXFLAGS	:= $(WARNFLAGS) $(OPTIFLAGS) $(INCLUDE) 
endif

# Source files
SRCS		:= $(wildcard src/*.cpp)
OBJS		:= $(SRCS:.cpp=.o)

.PHONY: all clean inform initialize tar

all:	inform build size

build: $(OBJS)
	@echo "Linking"
	@echo	"Flags:" 
	$(CXX)  $(CXXFLAGS) $(LDFLAGS) -o $(TARGET)/$(NAME) \
	$(subst src/,$(TARGET)/,$(OBJS)) 

clean:
	rm -rf debug/* release/* 
inform: 
ifneq ($(TARGET),release) 
ifneq ($(TARGET),debug) 
	@echo "Invalid configuration "$(TARGET)" specified." 
	@echo "You must specify a configuration when running make, e.g." 
	@echo "make TARGET=debug" 
	@echo 
	@echo "Possible choices for configuration are 'release' and 'debug'" 
	@exit 1 
endif 
endif
	@echo "Configuration is: "$(TARGET)
	@echo "----------------------------"

initialize:
	@mkdir debug release src

$(OBJS): %.o: %.cpp
	@echo "Compiling" 
	$(CXX) -c $(CXXFLAGS) -o $(TARGET)/$(subst src/,,$@) $<

debug: build
	$(DEBUGGER) $(DEBUGGERFLAG) $(TARGET)/$(NAME)

size: build
	@echo
	$(SIZE) -t $(TARGET)/$(NAME)

tar: $(SRCS)
	$(shell tar -cf source.tar src/*)