BUG #6203: Building libpq with Visual Studio 9.0 error

The following bug has been logged online:

Bug reference: 6203
Logged by: Steve
Email address: argonaut(at)yandex(dot)ru
PostgreSQL version: 9.1.0
Operating system: Windows XP SP3 x32
Description: Building libpq with Visual Studio 9.0 error
Details:

When I'm trying to build libpq client library
with Visual Studio 9.0 (as described in documentation
section 16.2, I mean executing "nmake /f win32.mak" in
command string), linking step gives me this error:

"link.exe @C:\DOCUME~1\Admin\LOCALS~1\Temp\nm36.tmp
Creating library .\Release\libpqdll.lib and object
.\Release\libpqdll.exp
libpq.lib(chklocale.obj) : error LNK2019: unresolved
external symbol _pgwin32_setlocale referenced in
function _pg_get_encoding_from_locale
.\Release\libpq.dll : fatal error LNK1120: 1 unresolved
externals"