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#include
      
void sayhello()
     
{
            
printf("hello,world\n");
      }
    
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         $ ar rcs libhello.a libhello.o  
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            gcc -shared -Wl,-soname,your_soname -o library_name file_list library_list
           ˵Ã÷: 
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               -Wl ±íÃ÷¸øÁ´½ÓÆ÷´«ËͲÎÊý£¬ËùÒÔÕâÀï-soname, library_name Ϊ¸øÁ´½ÓÆ÷µÄ²ÎÊý¡£
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