Fix PYBINDGEN_UNUSED #define for non-GCC compiler
Fix PYBINDGEN_UNUSED #define for non-GCC compiler
gjcarneiro/pybindgen,cawka/pybindgen-old,ftalbrecht/pybindgen,gjcarneiro/pybindgen,gjcarneiro/pybindgen,ftalbrecht/pybindgen,gjcarneiro/pybindgen,ftalbrecht/pybindgen,cawka/pybindgen-old,cawka/pybindgen-old,ftalbrecht/pybindgen,cawka/pybindgen-old