Update to WAF trunk API.
Update to WAF trunk API.
gjcarneiro/pybindgen,ftalbrecht/pybindgen,ftalbrecht/pybindgen,ftalbrecht/pybindgen,gjcarneiro/pybindgen,ftalbrecht/pybindgen,gjcarneiro/pybindgen,cawka/pybindgen-old,gjcarneiro/pybindgen,cawka/pybindgen-old,cawka/pybindgen-old,cawka/pybindgen-old