undefined reference to `log`

Question

A very weird bug happened to me with gcc/9.3.0. Below is the minimal reproduced code test.c.

#include <stdio.h>
#include <math.h>

int main()
{
    double tmp[] = {3.0000, 2.0000, 1.0000,  2.0000,  1.0000,  2.0000,  3.0000,
                    2.0000,  1.0000,  2.0000,  3.0000,  2.0000,  2.0000,  2.0000,
                    2.0000,  1.0000,  3.0000,  2.0000,  2.0000,  1.0000,  3.0000,  
                    3.0000,  1.0000,  2.0000,  2.0000};


    double tmp2 = tmp[12] * log(tmp[10] * tmp[1] - tmp[2]);

    printf("log 3 is %.3f\n", tmp2);
}

compile error is the following:

$ gcc ./test/test.c -o test_log

/hpc/apps/gcc/9.3.0/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: /tmp/ccotSPH5.o: in function `main':
test.c:(.text+0x199): undefined reference to `log'
collect2: error: ld returned 1 exit status

Please advise. Thanks for your time.