Re: BUG #17967: [msvc-x86] Failed to build with error LNK2019: unresolved external symbol __BitScanReverse64 referen
Mo Youmiu <moyoumiu@outlook.com>
From: Mo Youmiu <moyoumiu@outlook.com>
To: David Rowley <dgrowleyml@gmail.com>, "pgsql-bugs@lists.postgresql.org" <pgsql-bugs@lists.postgresql.org>
Date: 2023-06-08T07:56:56Z
Lists: pgsql-bugs
Thanks for your replies and corrections, and apologies for the confusing version I mentioned. For this commit, PostgreSQL was successfully built with msvc on both x86 and amd64. Glad my report was helpful. Mo ________________________________ From: David Rowley <dgrowleyml@gmail.com> Sent: Thursday, June 8, 2023 6:18 To: moyoumiu@outlook.com <moyoumiu@outlook.com>; pgsql-bugs@lists.postgresql.org <pgsql-bugs@lists.postgresql.org> Subject: Re: BUG #17967: [msvc-x86] Failed to build with error LNK2019: unresolved external symbol __BitScanReverse64 referen On Thu, 8 Jun 2023 at 01:00, David Rowley <dgrowleyml@gmail.com> wrote: > I've not tested it, but I imagine the attached patch should fix it. I've just pushed that patch to master only. I noticed your report mentioned that this was for version 15.3. I assumed this was a mistake as I didn't see any usage of the bit scanning functions in v15. Commit 677319746 [1] introduced these, which is new to v16. Many thanks for reporting this! David [1] https://git.postgresql.org/gitweb/?p=postgresql.git;a=commit;h=677319746
Commits
-
Don't use _BitScanForward64/_BitScanReverse64 on 32-bit MSVC builds
- 53ea2b7ad050 16.0 landed
-
Remove newly added asserts from pg_bitutils.h
- 83a611a259d4 16.0 cited
-
Add MSVC support for pg_leftmost_one_pos32() and friends
- 67731974644c 16.0 cited