I'm using the following configure line:

./configure --with-mysql=/usr/local/lib/mysql \
--with-ldap \
--with-openlink=/usr/openlink \
--enable-trackvars \
--with-apache=/usr/local/lib/apache_1.3.9 

Here's the error message when I 'make'

Making all in odbc
        /bin/sh ../../libtool --silent --mode=compile gcc -DHAVE_CONFIG_H -I. -I
. -I../.. -I../../libzend -I../.. -I../../libzend -I/usr/local/lib/apache_1.3.9/
src/include -I/usr/local/lib/apache_1.3.9/src/os/unix   -I/usr/local/include -I/
usr/local/lib/mysql/include  -I/usr/openlink/odbcsdk/include   -D_POSIX_PTHREAD_
SEMANTICS -D_REENTRANT  -O2 -g -O2 -c php_odbc.c
php_odbc.c: In function `odbc_do_connect':
php_odbc.c:1772: `SQLCHAR' undeclared (first use in this function)
php_odbc.c:1772: (Each undeclared identifier is reported only once
php_odbc.c:1772: for each function it appears in.)
php_odbc.c:1772: parse error before `d_name'
php_odbc.c:1777: `d_name' undeclared (first use in this function)

It looks like this was introduced by "lurcher" on 11/30/99 in version 1.13 of php_odbc.c.