CC = gcc CCFLAGS = -owall INCLUDES = PREFIX = /usr/local .PHONY: all install all: temperaturUmrechner install: mkdir -p $(PREFIX)/bin install -m 0755 -t $(PREFIX)/bin temperaturUmrechner temperaterUmrechner: $(CC) $(INCLUDES) $(CCFLAGS) -o temperaturUmrechner temperaturUmrechner.c