install DBD::mysql, can't execute mysql_config

[zhihua li]

Hi all

recently i've been trying to install DBD::mysql. as the first step, i 
downloaded the binary file of mysql for linux from mysql.com.  i followed 
the instructions unpacking the files into a directory /usr/mysql. then i 
proceeded to install DBD::mysql.  however, the makefile kept saying that it 
couldn't find mysql_config. actually i found the file at /usr/mysql/bin, 
and added the full path to the PATH enviroment parameter. but still the 
make file process alwayse failed, saying it couldn't find and execute 
mysql_config.  what's more, when i went to the directory /usr/mysql/bin and 
typed mysql_config, the shell said there's no such command, even if the 
file is right there.

could anyone give me a clue about this?

thanks a lot!