PostgreSQL Bugs

Collected from the PG bugs email list.

Bug ID16336
PG Version12.2
OSWindows 10 with Visual Studio 2019.5.2
Opened2020-04-02 09:58:25+00
Reported byMario Emmenlauer
StatusNew

Body of first available message related to this bug follows.

The following bug has been logged on the website:

Bug reference:      16336
Logged by:          Mario Emmenlauer
Email address:      (redacted)
PostgreSQL version: 12.2
Operating system:   Windows 10 with Visual Studio 2019.5.2
Description:        

I've recently upgraded Visual Studio from 2019.3 to 2019.5.2. This broke
my
build of PostgreSQL. First I tried 11.5 which fails with the same errors,
and now
version 12.2 (from which I report this issue).

First, in order to build with VS2019.5.2, I needed to make a small change
to
`src/tools/msvc/gendef.pl` because dumpbin fails for me when using
backward
slashes. So after the line
    my $tmpfile = "$ARGV[0]/tmp.sym";
I added:
    $tmpfile =~ s@\\@/@g;

The build then continues, but later fails with 0 Warning(s), 2922 Error(s).
The
errors are due to undefined symbols. I did not change my build from
VS2019.3,
and I can also not reproduce the issue in VS2017, so it must be related to
the
upgrade of Visual Studio. I include a few of the undefined symbols here,
but
not the full list, for brevity:
```
     Creating library Debug/plpgsql/plpgsql.lib and object
Debug/plpgsql/plpgsql.exp
pl_comp.obj : error LNK2019: unresolved external symbol pg_snprintf
referenced in function do_compile [C:\gitlabci\postgres\plpgsql.vcxproj]
pl_gram.obj : error LNK2001: unresolved external symbol pg_snprintf
[C:\gitlabci\postgres\plpgsql.vcxproj]
pl_scanner.obj : error LNK2001: unresolved external symbol errstart
[C:\gitlabci\postgres\plpgsql.vcxproj]
pl_comp.obj : error LNK2001: unresolved external symbol errstart
[C:\gitlabci\postgres\plpgsql.vcxproj]
pl_exec.obj : error LNK2001: unresolved external symbol errstart
[C:\gitlabci\postgres\plpgsql.vcxproj]
pl_gram.obj : error LNK2001: unresolved external symbol errstart
[C:\gitlabci\postgres\plpgsql.vcxproj]
pl_handler.obj : error LNK2001: unresolved external symbol errstart
[C:\gitlabci\postgres\plpgsql.vcxproj]
pl_scanner.obj : error LNK2001: unresolved external symbol errfinish
[C:\gitlabci\postgres\plpgsql.vcxproj]
pl_comp.obj : error LNK2001: unresolved external symbol errfinish
[C:\gitlabci\postgres\plpgsql.vcxproj]
pl_exec.obj : error LNK2001: unresolved external symbol errfinish
[C:\gitlabci\postgres\plpgsql.vcxproj]
pl_gram.obj : error LNK2001: unresolved external symbol errfinish
[C:\gitlabci\postgres\plpgsql.vcxproj]
pl_handler.obj : error LNK2001: unresolved external symbol errfinish
[C:\gitlabci\postgres\plpgsql.vcxproj]
pl_scanner.obj : error LNK2001: unresolved external symbol errcode
[C:\gitlabci\postgres\plpgsql.vcxproj]
pl_comp.obj : error LNK2001: unresolved external symbol errcode
[C:\gitlabci\postgres\plpgsql.vcxproj]
pl_exec.obj : error LNK2001: unresolved external symbol errcode
[C:\gitlabci\postgres\plpgsql.vcxproj]
[...]
```

Messages

DateAuthorSubject
2020-04-02 09:58:25+00PG Bug reporting formBUG #16336: Undefined symbols since upgrade of VS to 2019.5.2, and other issues
2020-04-02 11:59:12+00Mario EmmenlauerRe: BUG #16336: Undefined symbols since upgrade of VS to 2019.5.2, and other issues
2020-04-06 14:06:28+00Mario EmmenlauerRe: BUG #16336: Undefined symbols since upgrade of VS to 2019.5.2, and other issues