correctly set conditionals "HAVE_BUILDTOOLS" & "HAVE_EXTRA_MK" on Windows
correctly set conditionals "HAVE_BUILDTOOLS" & "HAVE_EXTRA_MK" on Windows

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb