BUG #3182: Cannot make libpq with BCC 5.5

The following bug has been logged online:

Bug reference: 3182
Logged by: CN Liou
Email address: cnliou9(at)fastmail(dot)fm
PostgreSQL version: 8.2.3
Operating system: Win98
Description: Cannot make libpq with BCC 5.5
Details:

bcc32.exe
-I\borland\bcc55\include;..\..\include;..\..\include\port\win32;..\..\includ
e\port\win32_msvc;..\..\port -n".\Release" -WD -c
-DFRONTEND;NDEBUG;WIN32;_WINDOWS -tWM -a8 -X -w-use -w-par -w-pia -w-csu
-w-aus -w-ccc -O -Oi -OS -DNDEBUG win32.c
Borland C++ 5.5.1 for Win32 Copyright (c) 1993, 2000 Borland
win32.c:
Error E2209 ..\..\include\c.h 74: Unable to open include file 'strings.h'
Error E2176 ..\..\include\c.h 284: Too many types in declaration
Error E2176 ..\..\include\c.h 287: Too many types in declaration
Error E2139 win32.c 44: Declaration missing ;
Error E2451 win32.c 53: Undefined symbol 'WSAEINTR'
Error E2040 win32.c 53: Declaration terminated incorrectly
Error E2190 win32.c 54: Unexpected }
Error E2190 win32.c 54: Unexpected }
Error E2040 win32.c 54: Declaration terminated incorrectly
Error E2190 win32.c 208: Unexpected }
Error E2190 win32.c 208: Unexpected }
Error E2147 win32.c 217: 'DWORD' cannot start a parameter declaration
Error E2451 win32.c 223: Undefined symbol 'error' in function
LookupWSErrorMessage
Error E2451 win32.c 299: Undefined symbol 'LOAD_LIBRARY_AS_DATAFILE' in
function winsock_strerror
Warning W8065 win32.c 299: Call to function 'LoadLibraryEx' with no
prototype in function winsock_strerror
Error E2451 win32.c 306: Undefined symbol 'FORMAT_MESSAGE_FROM_SYSTEM' in
function winsock_strerror
Error E2451 win32.c 307: Undefined symbol 'FORMAT_MESSAGE_IGNORE_INSERTS' in
function winsock_strerror
Error E2451 win32.c 307: Undefined symbol 'FORMAT_MESSAGE_FROM_HMODULE' in
function winsock_strerror
Error E2451 win32.c 312: Undefined symbol 'LANG_ENGLISH' in function
winsock_strerror
Error E2451 win32.c 312: Undefined symbol 'SUBLANG_DEFAULT' in function
winsock_strerror
Warning W8065 win32.c 312: Call to function 'MAKELANGID' with no prototype
in function winsock_strerror
Warning W8065 win32.c 315: Call to function 'FormatMessage' with no
prototype in function winsock_strerror
*** 19 errors in Compile ***