python configure.py - howto set include paths? can't find tqt.h ...

All, I am working to build sip4-tqt and I'm running into problems telling python configure.py where to find the include files. I patched sipgen/sip.h to #include <tqt/tqt.h> which allow it to find tqt.h, but then it failed to find the next include: /usr/include/tqt/tqt.h:54:23: fatal error: ntqglobal.h: No such file or directory which is in /opt/tqt3/include/ntqglobal.h So with a python configure, how do I set the include search path to include /opt/tqt3/include:/opt/whatever/else/I/need? python2 configure.py --help tells me how to flag where the completed files go, but not where to help configure.py look for them. What's the trick? -- David C. Rankin, J.D.,P.E.