EXE = a.out
RUNARGS =

CFLAGS = -std=c23 -Wall -Wextra -Wpedantic ${CFLAGS_${DEBUG}}
LDFLAGS = ${LDFLAGS_${DEBUG}}
LDLIBS =

OBJ != find -type f -name '*.c' | sed 's/\.c$$/.o/'

DEBUG = 0
GDB != which gf2 2> /dev/null || which gdb

CFLAGS_0  = -DNDEBUG
CFLAGS_1  = -g3 -fsanitize=undefined
LDFLAGS_1 = -g3 -fsanitize=undefined
LDFLAGS_0 = -Os -s

PREFIX ?= ${HOME}/.local
BINDIR = ${PREFIX}/bin

.PHONY: run all clean install uninstall

all: ${EXE}
run: ${EXE}
	./${EXE} ${RUNARGS}
debug: ${EXE}
	${GDB} -ex start --args ./${EXE} ${RUNARGS}

clean:
	rm -fv ${EXE} ${OBJ}

${EXE}: ${OBJ}
	${CC} ${LDFLAGS} ${OBJ} -o ${EXE} ${LDLIBS}

install: ${EXE}
	cp ${EXE} ${BINDIR}/${EXE}

uninstall:
	rm ${BINDIR}/${EXE}