unixODBC distribution installs newer odbcpsql libs than postgresql?

Hi!

If I configure and build postgresql's src/interfaces/odbc for unix ODBC 
client support, using --with-unixodbc, postgresql installs a version `0' of 
the library libodbcpsql.so.0. But, the unixODBC distribution already 
installed a version `1' and `2' of the same lib:

$ cd /usr/local/lib
$ ls -lF libodbcpsql*
-rw-r--r--  1 root  wheel  256918 Feb  5 03:11 libodbcpsql.a
lrwxr-xr-x  1 root  wheel      16 Feb  5 03:11 libodbcpsql.so@ -> 
libodbcpsql.so.0
-rwxr-xr-x  1 root  wheel  194362 Feb  5 03:11 libodbcpsql.so.0*
-rwxr-xr-x  1 root  wheel  233771 Feb  5 02:31 libodbcpsql.so.1*
-rwxr-xr-x  1 root  wheel  244188 Feb  5 02:31 libodbcpsql.so.2*
-rw-r--r--  1 root  wheel    4286 Feb  5 02:31 libodbcpsqlS.a
lrwxr-xr-x  1 root  wheel      17 Feb  5 02:31 libodbcpsqlS.so@ -> 
libodbcpsqlS.so.1


I installed the unixODBC at 02:31, and postgres odbc at 03:11... (sic...), 
anyway, unixODBC apparently has support for postgresql built in. Which 
distribution should I use and recommend?

Best regards,
Palle Girgensohn