Merge branch 'fix-pointer-truncation' into release-3.14

Merge-request: !2956

Source/LexerParser/cmListFileLexer.c

@@ -766,7 +766,7 @@ Modify cmListFileLexer.c:
 
 /* IWYU pragma: no_forward_declare yyguts_t */
 
-#ifdef WIN32
+#ifdef _WIN32
 #include "cmsys/Encoding.h"
 #endif
 

Source/LexerParser/cmListFileLexer.in.l

@@ -18,7 +18,7 @@ Modify cmListFileLexer.c:
 
 /* IWYU pragma: no_forward_declare yyguts_t */
 
-#ifdef WIN32
+#ifdef _WIN32
 #include "cmsys/Encoding.h"
 #endif