--- source/i18n/digitlst.cpp	2017-01-20 01:20:31.000000000 +0100
+++ source/i18n/digitlst.cpp	2017-08-18 20:51:03.053610939 +0200
@@ -61,11 +61,7 @@
 #endif
 
 #if U_USE_STRTOD_L
-# if U_PLATFORM_USES_ONLY_WIN32_API || U_PLATFORM == U_PF_CYGWIN
-#   include <locale.h>
-# else
-#   include <xlocale.h>
-# endif
+# include <locale.h>
 #endif
 
 // ***************************************************************************