code for Windows App Store do not have access to the ANSI calls used in Debug.cpp

so we disable debug for these targets

configure.ac

@@ -10,4 +10,5 @@ AC_ARG_ENABLE([debug],
 	[enable_debug="$withval"], [enable_debug=no])
 AM_CONDITIONAL([ENABLE_DEBUG], [test "$enable_debug" = yes])
 AC_CONFIG_FILES([Makefile libebml.pc])
+AC_CHECK_HEADERS([winapifamily.h])
 AC_OUTPUT

ebml/EbmlConfig.h

@@ -36,6 +36,10 @@
 #ifndef LIBEBML_CONFIG_H
 #define LIBEBML_CONFIG_H
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #if defined(__linux__)
 #include <endian.h>
 #if __BYTE_ORDER == __LITTLE_ENDIAN
@@ -100,6 +104,13 @@
 #define LIBEBML_DEBUG
 #endif
 
+#ifdef HAVE_WINAPIFAMILY_H
+# include <winapifamily.h>
+# if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+#  undef LIBEBML_DEBUG
+# endif
+#endif
+
 // For compilers that don't define __TIMESTAMP__ (e.g. gcc 2.95, gcc 3.2)
 #ifndef __TIMESTAMP__
 #define __TIMESTAMP__ __DATE__ " " __TIME__