Fix waf --generate-version bug since waf upgrade
Fix waf --generate-version bug since waf upgrade
cawka/pybindgen-old,gjcarneiro/pybindgen,gjcarneiro/pybindgen,ftalbrecht/pybindgen,cawka/pybindgen-old,ftalbrecht/pybindgen,gjcarneiro/pybindgen,cawka/pybindgen-old,gjcarneiro/pybindgen,cawka/pybindgen-old,ftalbrecht/pybindgen,ftalbrecht/pybindgen