patch 9.0.1765: Error when cross-compiling Vim

Problem:  Error when cross-compiling Vim
Solution: use AC_CHECK_SIZEOF to find sizeof(wchar_t)

This fixes an error when cross compiling.

closes: #12828

Bug: https://bugs.gentoo.org/889430
Signed-off-by: Mike Gilbert <floppym@gentoo.org>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 08cc7d8..7e730a8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1765,
+/**/
     1764,
 /**/
     1763,