It means you forgot -lz.
You also need libz.so
Evan James Dembskey wrote:
>
> Hi,
>
> While trying to compile a program in C taken from the book Professional
> Linux Programming (Matthew, N. & Stones, R. (2000) 155) using this command
> (also taken from the same book):
>
> [root@evan /usr]# gcc -I/usr/include/mysql
> connect1.c -L/usr/lib/mysql -lmysqlclient -o connect1
>
> I get the following error. What does this mean, and how can I fix it?
>
> /usr/lib/mysql/libmysqlclient.a(my_compress.o): In function
> `my_uncompress':
> my_compress.o(.text+0x97): undefined reference to `uncompress'
> /usr/lib/mysql/libmysqlclient.a(my_compress.o): In function
> `my_compress_alloc':
> my_compress.o(.text+0x12b): undefined reference to `compress'
> collect2: ld returned 1 exit status
> [root@evan /usr]#
>
> I am running under Mandrake 7.2.
>
> Program
> -------
>
> #include <stdlib.h>
> #include <stdio.h>
>
> #include "mysql.h"
>
> int main(int argc, char *argv[])
> {
> MYSQL my_connection;
>
> mysql_init(&my_connection);
> if(mysql_real_connect(&my_connection,
> "localhost","root","","test",0,NULL,0)){
> printf("Connection success\n");
> mysql_close(&my_connection);}
> else{
> fprintf(stderr, "Connection failed\n");
> if (mysql_errno(&my_connection)){
> fprintf(stderr, "Connection error %d: %s\n",
> mysql_errno(&my_connection),
> mysql_error(&my_connection));
> }
> }
>
> return EXIT_SUCCESS;
>
> }
>
> Regards,
>
> Evan
>
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