make的经典错误

错误的：

  1. LIBS = -lm
  2.OBJS = main main.o haha.o sin_value.o cos_value.o
  3. main : ${OBJS}
  4.     gcc -o  ${OBJS}
  5. clean:
  6.     rm -f  ${OBJS}

正确的：

Makefile：

  1. LIBS = -lm
  2. OBJS = main.o haha.o sin_value.o cos_value.o
  3. main : ${OBJS}
  4.     gcc -o main ${OBJS}
  5. clean:
  6.     rm -f main ${OBJS}

终端错误提示：

xiaomin@xiaomin:~/ccode$ make

make: Circular main <- main dependency dropped.
make: `main' is up to date.