testcase:
#include <errno.h>

int main(void)
{
    return(0);
}

error:
gcc ~/test.c 
In file included from /usr/include/linux/errno.h:143,
                 from /usr/include/bits/errno.h:25,
                 from /usr/include/errno.h:36,
                 from /home/rider/test.c:1:
/usr/include/asm/errno.h:12:34: asm-x86_64/errno.h: No such file or directory