Linker error after upgrading Firebird and recompiling Qt

[scarleton]

I upgraded Firebird from 2.1 to 2.5 and now I get the linker error:

fatal error LNK1181: cannot open input file 'C:\Apps\Firebird\Firebird_2_1\lib\fbclient_ms.lib'

I went in and did a nmake distclean on Qt 4.7.3, then reconfigured it to point to C:\Apps\Firebird\Firebird-2.5.0.26074-0_Win32, and recompiled. But I am still getting the same linker error. I have combed my complete .pro and pri file and there is no reference there, but in my VS2008 project, the last library in the linker list is C:\Apps\Firebird\Firebird_2_1\lib\fbclient_ms.lib.

How do I fix this?

P.S. This project is NOT using Firebird, only SQLite. I have another project where I use Firebird.
Sam