In order to reconfigure the Windows build, one needs to do:

1) back up ../xmlversion.h

2) run ./configure.js <options>

and then do:

1) move the generated file ../xmlversion.h to the ../include/ directory

and restore the original ../xmlversion.h from the backup copy

2) delete the file ../config.h copied from ../include/win32config.h since

the latter is included directly from ../libxml.h anyway

3) delete ./Makefile since it is not used by kBuild anyway