On Sat, Mar 23, 2024 at 6:26 AM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> conftest.c:139:5: error: no previous prototype for 'does_int64_work' [-Werror=missing-prototypes]
> 139 | int does_int64_work()
> | ^~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors
> configure:17003: $? = 1
> configure: program exited with status 1
. o O ( int64_t, PRIdi64, etc were standardised a quarter of a century ago )