# the factor of gravity
G=1
# the factor of pressure
P=4
# the factor of viscosity
V=8
RM= rm
TRUE= true
CWARN= -Wall -W -Wextra -pedantic
CSTD= -std=c99 -D_BSD_SOURCE
CFLAGS= ${CWARN} ${CSTD} ${ARCH} ${OPT}
CC= gcc
ENTRY= prog

all: ${ENTRY}
	@${TRUE}

${ENTRY}: ${ENTRY}.c
	${CC} ${CFLAGS} -DG=$G -DP=$P -DV=$P ${ENTRY}.c -o $@ -lm

clean:
	$(RM) -f ${ENTRY}