SDL ?= ../SDL

DEBUG = -g -gdwarf-4

CFLAGS += -Wall -Werror -Wfatal-errors
CFLAGS += -Wno-error=unused-function
CFLAGS += -std=c2x
CFLAGS += -I$(SDL)/include -D_REENTRANT
CFLAGS += $(shell pkg-config --cflags freetype2)
LDFLAGS += -L$(SDL)/build -lSDL3 -Wl,-rpath=$(SDL)/build
LDFLAGS += $(shell pkg-config --libs freetype2)

DEPFLAGS = -MMD -MP

OPT = -O3 -march=native

SERIAL_FORWARDER_OBJS = \
	serial_forwarder.o \
	serial.o \
	parse_serial.o \
	packet.o \
	ping_pong.o \
	gpio.o \
	timespec.o

TIME_DISPLAY_OBJS = \
	time_display.o \
	packet.o \
	ping_pong.o \
	gpio.o \
	timespec.o

all: serial_forwarder time_display

clean:
	rm -f *.o *.d *.gch
	rm -f serial_forwarder time_display

%.o: %.c
	$(CC) $(CARCH) $(CFLAGS) $(OPT) $(DEBUG) $(DEPFLAGS) -MF ${<}.d -c $< -o $@

serial_forwarder: $(SERIAL_FORWARDER_OBJS)
	$(CC) $^ -o $@

time_display: $(TIME_DISPLAY_OBJS)
	$(CC) $^ -o $@ $(LDFLAGS)

-include $(shell find -type f -name '*.d')

.SUFFIXES:
.INTERMEDIATE:
.SECONDARY:
.PHONY: all clean

%: RCS/%,v
%: RCS/%
%: %,v
%: s.%
%: SCCS/s.%