Upgrade to libxml 2.9.2 and libxslt 1.1.28

third_party/libxslt/win32/config.h

 /*
  * Summary: Windows configuration header
  * Description: Windows configuration header
  *
  * Copy: See Copyright for the status of this software.
  *
  * Author: Igor Zlatkovic
  */
 #ifndef __LIBXSLT_WIN32_CONFIG__
 #define __LIBXSLT_WIN32_CONFIG__
@@ skipping 10 matching lines @@
 #define HAVE_FCNTL_H 1
 
 #include <io.h>
 
 #define HAVE_ISINF
 #define HAVE_ISNAN
 
 #include <math.h>
 #if defined _MSC_VER || defined __MINGW32__
 /* MS C-runtime has functions which can be used in order to determine if
-   a given floating-point variable contains NaN, (+-)INF. These are 
+   a given floating-point variable contains NaN, (+-)INF. These are
    preferred, because floating-point technology is considered propriatary
-   by MS and we can assume that their functions know more about their 
+   by MS and we can assume that their functions know more about their
    oddities than we do. */
 #include <float.h>
-/* Bjorn Reese figured a quite nice construct for isinf() using the 
+/* Bjorn Reese figured a quite nice construct for isinf() using the
    _fpclass() function. */
 #ifndef isinf
 #define isinf(d) ((_fpclass(d) == _FPCLASS_PINF) ? 1 \
         : ((_fpclass(d) == _FPCLASS_NINF) ? -1 : 0))
 #endif
 /* _isnan(x) returns nonzero if (x == NaN) and zero otherwise. */
 #ifndef isnan
 #define isnan(d) (_isnan(d))
 #endif
 #else /* _MSC_VER */
@@ skipping 45 matching lines @@
 #include <libxml/xmlversion.h>
 
 #ifndef ATTRIBUTE_UNUSED
 #define ATTRIBUTE_UNUSED
 #endif
 
 #define _WINSOCKAPI_
 
 #endif /* __LIBXSLT_WIN32_CONFIG__ */