Oh, I forgot to send comments that partly explain my recent changes in
this area. Here they are, belatedly:
On 2023-04-10 05:56, Bruno Haible wrote:
+@item
+Linux/riscv32,
<https://reviews.llvm.org/D85095> says this platform used 64-bit time_t
"from the get go".
+Linux with musl libc on x86,
<https://musl.libc.org/releases.html> says that musl uses 64-bit time_t
on all architectures starting with 1.2.0.
+@item
+Cygwin/x86,
Cygwin dropped 32-bit support last year (3.3.6 is the last version with
x86), so this could use a date. Come to think of it, other entries could
use dates too.
+Whereas no failure will occur on the following 32-bit platforms or ABIs:
+@itemize
+@item
+Linux/x86 with glibc >= 2.34 on
+x86, arm, mips (32-bit or n32 ABI), powerpc, sparc, s390, hppa, m68k, sh,
csky, microblaze, nios2,
I vaguely recall someone telling me that _TIME_BITS=64 makes a
difference only on x86 and arm. But perhaps that was just for one distro
that doesn't do those other ports.
