出现问题:
make: *** No rule to make target `/usr/lib/gcc-lib/i386-redhat-linux/2.96/include/stddef.h', needed by `send_sms.o'. Stop. make: *** No rule to make target `/usr
make: *** No rule to make target `/usr/lib/gcc-lib/i386-redhat-linux/2.96/include/stddef.h', needed by `send_sms.o'. Stop. make: *** No rule to make target `/usr