libiconv: add CP65001 as alias for UTF-8

mingw-w64-libiconv/0003-add-cp65001-as-utf8-alias.patch

@@ -0,0 +1,12 @@
+diff -urN a/lib/encodings.def b/lib/encodings.def
+--- a/lib/encodings.def	2021-06-06 17:50:48.000000000 +0800
++++ b/lib/encodings.def	2023-01-12 21:17:32.598803000 +0800
+@@ -59,7 +59,7 @@
+ 
+ DEFENCODING(( "UTF-8",                  /* IANA, RFC 2279 */
+             /*"UTF8",                      JDK 1.1 */
+-            /*"CP65001",                   Windows */
++              "CP65001",                /* Windows */
+             ),
+             utf8,
+             { utf8_mbtowc, NULL },        { utf8_wctomb, NULL })

mingw-w64-libiconv/PKGBUILD

@@ -13,12 +13,14 @@ mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32' 'clangarm64')
 url='https://www.gnu.org/software/libiconv/'
 source=("https://ftp.gnu.org/pub/gnu/${_realname}/${_realname}-${pkgver}.tar.gz"{,.sig}
         0004-fix-makefile-devel-assuming-gcc.patch
+        0003-add-cp65001-as-utf8-alias.patch
         0002-fix-cr-for-awk-in-configure.all.patch
         fix-pointer-buf.patch
         iconv.pc)
 sha256sums=('8f74213b56238c85a50a5329f77e06198771e70dd9a739779f4c02f65d971313'
             'SKIP'
             '2f08ca8681e4c85cdb2e6835921a502fd623dee4bf8ca10aa3c66747ede58a47'
+            'cb2b1cca44c9b9bd11c3bd33997c10d22dff263542275324c88f34b59910ef87'
             '89d5c0f666e50a0186cfb142ba7b77e8fe1ac4d65bdfd9ae14ae8d2f0045a87c'
             '6b6e2393840f4dc6067587165777b1a07978f4c05247d7c1010a45ad251bbeeb'
             '56e7ec406bf42eb66b1d972f20d229f7a76ba00c38c7b4403bf348875704baae')
@@ -46,6 +48,7 @@ prepare() {
   apply_patch_with_msg \
     0002-fix-cr-for-awk-in-configure.all.patch \
     fix-pointer-buf.patch \
+    0003-add-cp65001-as-utf8-alias.patch \
     0004-fix-makefile-devel-assuming-gcc.patch
   regenerate_files
 }