c - 在 Ubuntu 中使用 Code::Blocks 共享库

Question

我正在尝试在 Ubuntu 中使用 Code::Blocks 创建动态库 T 已经创建了下一个文件：
1. main.c

    #include "main.h"
    #include <stdio.h>
    #include <stdlib.h>

    void _scan_file (char s[100], Plong a)
    {
        FILE *f;
        f = fopen(s, "r");
        int i = 3;
        char q[MaxSize + 4];
        while (fread(&q[i++], sizeof(char), 1, f)){}
        --i;
        int k = 0;
        if (q[3] == '-' || q[3] == '+')
        {
            a -> sign = q[3];
            q[3] = '0';
        }
        else
            a -> sign = '+';
        i--;
        q[0] = q[1] = q[2] = '0';
        int j;
        for (j = i; j >= 3; j -= 4)
        {
            int p;
            for (p = 3; p >= 0; p--)
                if (q[j-p] <= '9' && q[j-p] >= '0')
                    a -> num[k] = a -> num[k] * 10 + q[j - p] - 48;
            ++k;
        }
        if (a -> num[--k] == 0)
        {
            a -> len = k;
        }
        else
            a -> len = k + 1;
        fclose(f);
    }

1. 主文件

   #ifndef MAIN_H_INCLUDED
   #define MAIN_H_INCLUDED
   
   #include <stdio.h>
   #include <stdlib.h>
   const int MaxSize = 1000;
   const int _Base = 10000;
   const int Max_Pos = 4;
   
   typedef int l_int;
   struct long_num
   {
       int len;
       char sign;   
       l_int num[];
   };
   
   typedef struct long_num Llong;
   typedef Llong * Plong;
   
   extern void _scan_file (char *s, Plong a);
   
   
   #endif 
   

但是当我运行这个 Code::Blocks 并没有创建任何 *.so 文件所以我不知道该怎么做......有人可以帮助我吗？