Roll libxml to 2.9.3

third_party/libxml/src/win32/configure.js

 /* Configure script for libxml, specific for Windows with Scripting Host.
  * 
  * This script will configure the libxml build process and create necessary files.
  * Run it with an 'help', or an invalid option and it will tell you what options
  * it accepts.
  *
  * March 2002, Igor Zlatkovic <igor@zlatkovic.com>
  */
 
 /* The source directory, relative to the one where this file resides. */
 var srcDirXml = "..";
 var srcDirUtils = "..";
 /* Base name of what we are building. */
 var baseName = "libxml2";
 /* Configure file which contains the version and the output file where
    we can store our build configuration. */
-var configFile = srcDirXml + "\\configure.in";
+var configFile = srcDirXml + "\\configure.ac";
 var versionFile = ".\\config.msvc";
 /* Input and output files regarding the libxml features. */
 var optsFileIn = srcDirXml + "\\include\\libxml\\xmlversion.h.in";
 var optsFile = srcDirXml + "\\include\\libxml\\xmlversion.h";
 /* Version strings for the binary distribution. Will be filled later 
    in the code. */
 var verMajor;
 var verMinor;
 var verMicro;
 var verMicroSuffix;
@@ skipping 671 matching lines @@
 txtOut += "      Put tools in: " + buildBinPrefix + "\n";
 txtOut += "    Put headers in: " + buildIncPrefix + "\n";
 txtOut += "Put static libs in: " + buildLibPrefix + "\n";
 txtOut += "Put shared libs in: " + buildSoPrefix + "\n";
 txtOut += "      Include path: " + buildInclude + "\n";
 txtOut += "          Lib path: " + buildLib + "\n";
 WScript.Echo(txtOut);
 
 //