I wrote:
> Noah Misch <noah@leadboat.com> writes:
>> Perhaps it is time to require HAVE_WCSTOMBS and HAVE_TOWLOWER, removing
>> USE_WIDE_UPPER_LOWER? Every buildfarm fossil has both.
> +1 ... if nothing else, there's the problem that untested code is likely
> to be broken. You just proved it *is* broken, of course, but my point
> is that even if we repaired the immediate damage we could have little
> confidence in it staying fixed.
Further notes about that:
* The Single Unix Spec v2 (a/k/a POSIX 1997), which has been our minimum
portability spec for quite awhile, requires wcstombs() and towlower(),
and further requires the latter to be declared in <wctype.h>.
* Surveying the buildfarm, I agree with your conclusion that every active
member has wcstombs() and towlower(). gaur/pademelon is the lone member
that lacks <wctype.h>; it declares towlower() in <wchar.h> instead. It's
not so surprising that that system adheres to a pre-1997 idea of where to
put that, because its /usr/include files mostly date from 1996 ...
Meanwhile, I see that Peter has posted a fix for the immediate problem.
I propose that Peter should apply his fix in HEAD and v10, and then
I'll rip out the !USE_WIDE_UPPER_LOWER code paths in HEAD only.
regards, tom lane
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