Am Fr., 31. Aug. 2018 um 18:52 Uhr schrieb Ben Franksen <ben.franksen@online.de>:

Am 31.08.2018 um 11:57 schrieb Sven Panne:
> Am Fr., 31. Aug. 2018 um 11:11 Uhr schrieb Sam Halliday <
> sam.halliday@gmail.com>:
>
>> [...] It would make a lot of sense for the
>> "unregistered" sources to be made available as an optional download

Note that the term is "unregisterized" which refers to putting certain
global variables into registers; you can't do that in C code.

That's only correct for standard C, for GCC there is https://gcc.gnu.org/onlinedocs/gcc/Global-Register-Variables.html. IIRC this is exactly how old unregistered builds worked. I am not even sure if the unregistered builds ever worked *without* GCC, perhaps there was some CPP magic, but I can't remember....