Linux Makefile Help

[JeZ-l-Lee]

Hi,

Can someone who is excellent with Linux makefiles look at our makefile and make changes as necessary?
We are working on a cross-platform open-source educational word spelling game.

You can download the current game project with included makefile at below URL link:
CURRENT SOURCE

The current makefile has worked for many years, just looking to improve it moving forward.
Thank you in advance!

Jesse

[JeZ-l-Lee]

Below is the makefile if you don't want to download the whole project:

# "LettersFall[TM]" - MAKEFILE by JeZxLee & mattmatteh...
# (C)opyright 2018 By www.FallenAngelSoftware.com

TARGET = lf

VERSION = 5.0

DEL_FILE = rm -f

CC      = g++
CFLAGS = -pipe -Wall -g #-"ggdb"
SDL_CFLAGS = $(shell sdl2-config --cflags)
SDL_LIBS = $(shell sdl2-config --libs) 

SDL_TTF_LIBS	= -lSDL2_ttf
SDL_IMAGE_LIBS	= -lSDL2_image
SDL_MIXER_LIBS  = -lSDL2_mixer

OBJECTS = src/main.o \
         src/audio.o \
         src/data.o \
         src/input.o \
         src/interface.o \
         src/logic.o \
         src/screens.o \
         src/visuals.o

SOURCES = src/main.cpp \
         src/audio.cpp \
         src/data.cpp \
         src/input.cpp \
         src/interface.cpp \
         src/logic.cpp \
         src/screens.cpp \
         src/visuals.cpp

HEADERS = src/audio.h \
         src/data.h \
         src/input.h \
         src/interface.h \
         src/logic.h \
         src/screens.h \
         src/visuals.h

$(TARGET): $(OBJECTS)
	$(CC) $(OBJECTS) $(SDL_LIBS) $(SDL_TTF_LIBS) $(SDL_IMAGE_LIBS) $(SDL_MIXER_LIBS) -o $@

.cpp.o:
	$(CC) $(CFLAGS) $(SDL_CFLAGS) -c $< -o $@

clean:
	rm $(OBJECTS) $(TARGET)

[jlittle]

I like using simple makefiles like yours. But if your number of sources substantially increased, I suggest investigating more sophisticated tools, always bearing in mind how portable you want to be. F. ex., tools often do automatic scanning for header files. I think KDE uses CMake.

I'm no expert, but I wonder why you're using the variables for C compiling when you're using C++? For Gnu make the variables for C++ are CXX and CXXFLAGS. You could add your flags to CXXFLAGS and your libraries to LDLIBS and use the default rules.

[sithlord48]

CMake is your friend. Its much more flexable then just making makefiles manually. Its also a lot more portable and will genertate build files for more then just unix.