GCC编译链遇到的问题,ndefined reference to `crypt‘,ndefined reference to `crypt‘,ndefined reference to `crypt_libwiringpi.so: undefined reference to `crypt

先把指令给出来
huang@huagcc test_led.c -o test_led -L lib -l wiringPi -l pthread -l crypt -lm -lrt

在linux下编译时提示：

/usr/bin/ld: /usr/lib/gcc/aarch64-linux-gnu/9/…/…/…/…/lib/libwiringPi.so: undefined reference to crypt' /usr/bin/ld: /usr/lib/gcc/aarch64-linux-gnu/9/../../../../lib/libwiringPi.so: ndefined reference tocrypt’
/usr/bin/ld: /usr/lib/gcc/aarch64-linux-gnu/9/…/…/…/…/lib/libwiringPi.so: ndefined reference to `crypt’
典型缺少编译链
那么在编译命令时候带上这些缺少库文件头就可以了

huang@huagcc test_led.c -o test_led -L lib -l wiringPi -l pthread -l crypt -lm -lrt -l是大L的小

下面是编译的代码

#include <wiringPi.h>
#include <stdio.h>
#define VOICE 3

int main(void)//调用LED的函数 warn()
{
	//int VOICE = 3;
	wiringPiSetup();
	pinMode(VOICE, OUTPUT);
	for (int i = 1; i <= 6; i++) {
		digitalWrite(VOICE, HIGH);
		// 启用
		delay(500);
		// 毫秒
		digitalWrite(VOICE, LOW);
		// 关
		delay(1000);
	}
	return 0;
}
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