psql-odbc configure error

This message bounced from psql-odbc (I suppose because I am not subscribed
there), so I am hoping some kindly soul here will help me!

Hi developers,

In attempting to build psqlodbc from source, I receive the following error
in configure after invoking it by

/configure --with-unixodbc=/usr/local

checking for ssize_t... yes
checking for long... yes
checking size of long... configure: error: cannot compute sizeof (long)
See `config.log' for more details.

I have attached the config.log in order to avoid snipping the important
thing. I notice in the log that it fails reading libodbcinst.so.1, but

lrwxrwxrwx 1 root root 20 Jul 19 16:59
/usr/local/lib/libodbcinst.so.1 -> libodbcinst.so.1.0.0

[djisgitt(at)prs1 psqlodbc-08.02.0400]$ ls -l
/usr/local/lib/libodbcinst.so.1.0.0 and

-rwxr-xr-x 1 root root 310919 Jul 19 16:59
/usr/local/lib/libodbcinst.so.1.0.0 and

/usr/local/lib is in the ldconfig path.

Just prior to this, I installed from source unixodbc 2.2.12 in /usr/local

So, please tell me what I did wrong, and how to fix it.

Thank you.

Don