#include <stdio.h>

int main(void)
{
printf("Be happy");
printf("My friend");

return 0;

}

이런식으로 오류가 뜹니다
root@goorm:/workspace/3# cd "/workspace/3/src" && gcc "main1.c" -o /tmp/curre
nt_output && /tmp/current_output; rm -f /tmp/current_output
/usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/Scrt1.o: In functio
n _start': (.text+0x20): undefined reference tomain'
collect2: error: ld returned 1 exit status