I ve just started up to install the src distribution from qt-win-opensource-src-4.5.1.zip
I put nmake in the bin path
After this I added another path to find a dll because cl failed (return code 0x135).

it tried to compile some src code but failed finding stddef.h.

So I added the path to the appropriate path (C:\Program Files\Microsoft Visual Studio 9.0\VC\include) but I could not get it to work.

The configure commande line I used used is the following :
configure -platform win32-msvc2008 -opensource -developer-build -stl -qt-sql-mysql -qt-sql-odbc -I "C:\Program Files\Microsoft Visual Studio 9.0\VC\include"

Any suggestion ?