Yo Hal! On Thu, 12 Jan 2023 23:15:25 -0800 Hal Murray <halmur...@sonic.net> wrote:
> g...@rellim.com said:
> > Recent glibc (2.34 and up) and recent Linux kernels, allow 64 bit
> > time_t on 32-bit Linux without much work.
>
> What does "without much work" mean?
See commit 19d76e95312b03028752d57e76098d56adac63d9
#define _TIME_BITS 64
#define _FILE_OFFSET_BITS 64
That's not much work.
> How does gcc/clang/whatever decide if it is using 32 or 64 bits for
> time_t?
gcc and clang do not care, what matters is sys/time.h. That file
decides based on the presence, or abscense, of:
#define _TIME_BITS 64
#define _FILE_OFFSET_BITS 64
> What do I do if I want to use the one the distro didn't pick?
You do nothing that you did not already always do: use time.h
RGDS
GARY
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g...@rellim.com Tel:+1 541 382 8588
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