B18: odbc link error

[popori]

hi there,
i'm testing a sample odbc program.
but this program is occured link 
error,
message is "unreferenced 
'SQLAllocEnv'".
i think this message is cannot convert function 
name.
at like RegOpenKeyEx -> RegOpenKeyExA -> 
RegOpenKeyExA@24
          
--------------     ---------------     
-------------------
             
source code          
compile                              
link
i use -lodbc32 link option.
but error message is 'SQLAllocEnv@4' is not.
please answer me.
good luck