what do you put in "all UNIXes" ? Xenix 1.0 ? MULTICS? Because all current unices (https://upload.wikimedia.org/wikipedia/commons/7/77/Unix_his...) would have no problem running recent GCC and C++ exceptions.
I mean, for hell's sake, C++ exceptions date back to 1990. Nowadays you can throw exceptions on damn 16-bit microcontrollers (https://en.wikipedia.org/wiki/TI_MSP430) ; I doubt there's a relevant, non legacy unix where this does not work.
what do you put in "all UNIXes" ? Xenix 1.0 ? MULTICS? Because all current unices (https://upload.wikimedia.org/wikipedia/commons/7/77/Unix_his...) would have no problem running recent GCC and C++ exceptions.
I mean, for hell's sake, C++ exceptions date back to 1990. Nowadays you can throw exceptions on damn 16-bit microcontrollers (https://en.wikipedia.org/wiki/TI_MSP430) ; I doubt there's a relevant, non legacy unix where this does not work.