Enhancement: build script for Windows

automation/build_libpqtypes.bat

@@ -0,0 +1,44 @@
+@echo off
+:: Builds libpqtypes libraries
+::
+:: Set the path to the local Visual C++ installation in the variable below
+
+setlocal EnableDelayedExpansion
+:: Visual C++ installation directory
+set msvcDefaultDir=C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\
+set msvcDir=%~1
+if "%msvcDir%"=="" set msvcDir=!msvcDefaultDir!
+set sourceDir=%~dp0source\
+set win32Dir=%~dp0win32\
+set win64Dir=%~dp0win64\
+set curPath=%PATH%
+set curDir=%cd%
+
+if not exist "%sourceDir%" (
+	echo Source directory not found
+	exist /b 1
+)
+
+:: find the latest version of libpq
+for /d %%d in (%~dp0..\..\libpq\*) do set libpqDir=%%d
+
+cd "%sourceDir%"
+
+echo Building 32-bit libpqtypes
+call "%msvcDir%\vcvarsall.bat" x86
+nmake -f win32.mak clean
+nmake -f win32.mak INC="-I%libpqDir%\include" LPATH="%libpqDir%\win32" all
+if not exist "%win32Dir%" mkdir "%win32Dir%"
+copy /Y *.lib "%win32Dir%"
+copy /Y *.dll "%win32Dir%"
+set PATH=%curPath%
+
+echo Building 64-bit libpqtypes
+call "%msvcDir%\vcvarsall.bat" x64
+nmake -f win32.mak clean
+nmake -f win32.mak INC="-I%libpqDir%\include" LPATH="%libpqDir%\win64" all
+if not exist "%win64Dir%" mkdir "%win64Dir%"
+copy /Y *.lib "%win64Dir%"
+copy /Y *.dll "%win64Dir%"
+
+cd "%curDir%"