Upgrade to ICU 64.2

As an interim step to upgrade to ICU 65.1
Adds new scripts and Unicode blocks from Unicode 12.

Change-Id: Idc4a6b29ffb04bcb424522fcbd29a8db0428c056
Reviewed-on: https://gerrit.libreoffice.org/81611
Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Jenkins

13 files changed, 339 insertions, 170 deletions

diff --git a/configure.ac b/configure.ac
index 0850870ca809..eb6ce10a8846 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9480,8 +9480,8 @@ SYSTEM_GENBRK=
 SYSTEM_GENCCODE=
 SYSTEM_GENCMN=
 
-ICU_MAJOR=63
-ICU_MINOR=1
+ICU_MAJOR=64
+ICU_MINOR=2
 ICU_RECLASSIFIED_PREPEND_SET_EMPTY="TRUE"
 ICU_RECLASSIFIED_CONDITIONAL_JAPANESE_STARTER="TRUE"
 ICU_RECLASSIFIED_HEBREW_LETTER="TRUE"
diff --git a/download.lst b/download.lst
index 0d06a0463d93..6ba33582c0c2 100644
--- a/download.lst
+++ b/download.lst
@@ -104,10 +104,10 @@ export HUNSPELL_SHA256SUM := 57be4e03ae9dd62c3471f667a0d81a14513e314d4d92081292b
 export HUNSPELL_TARBALL := hunspell-1.7.0.tar.gz
 export HYPHEN_SHA256SUM := 304636d4eccd81a14b6914d07b84c79ebb815288c76fe027b9ebff6ff24d5705
 export HYPHEN_TARBALL := 5ade6ae2a99bc1e9e57031ca88d36dad-hyphen-2.8.8.tar.gz
-export ICU_SHA256SUM := 05c490b69454fce5860b7e8e2821231674af0a11d7ef2febea9a32512998cb9d
-export ICU_TARBALL := icu4c-63_1-src.tgz
-export ICU_DATA_SHA256SUM := 9bef2bf28ec4fdc86a3bd88d7ac4d509fef6dfbe9c6798299e55b9d4343e960c
-export ICU_DATA_TARBALL := icu4c-63_1-data.zip
+export ICU_SHA256SUM := 627d5d8478e6d96fc8c90fed4851239079a561a6a8b9e48b0892f24e82d31d6c
+export ICU_TARBALL := icu4c-64_2-src.tgz
+export ICU_DATA_SHA256SUM := fba0e89f5b3f285d722a83317647bffee69b6f1eb8d067d5da03c5677c45e510
+export ICU_DATA_TARBALL := icu4c-64_2-data.zip
 export JFREEREPORT_FLOW_ENGINE_SHA256SUM := 233f66e8d25c5dd971716d4200203a612a407649686ef3b52075d04b4c9df0dd
 export JFREEREPORT_FLOW_ENGINE_TARBALL := ba2930200c9f019c2d93a8c88c651a0f-flow-engine-0.9.4.zip
 export JFREEREPORT_FLUTE_SHA256SUM := 1b5b24f7bc543c0362b667692f78db8bab4ed6dafc6172f104d0bd3757d8a133
diff --git a/external/icu/CVE-2018-18928.patch.2 b/external/icu/CVE-2018-18928.patch.2
deleted file mode 100644
index f92cee05ceed..000000000000
--- a/external/icu/CVE-2018-18928.patch.2
+++ /dev/null
@@ -1,63 +0,0 @@
-From 6cbd62e59e30f73b444be89ea71fd74275ac53a4 Mon Sep 17 00:00:00 2001
-From: Shane Carr <shane@unicode.org>
-Date: Mon, 29 Oct 2018 23:52:44 -0700
-Subject: [PATCH] ICU-20246 Fixing another integer overflow in number parsing.
-
-(cherry picked from commit 53d8c8f3d181d87a6aa925b449b51c4a2c922a51)
----
- icu4c/source/i18n/fmtable.cpp                          |  2 +-
- icu4c/source/i18n/number_decimalquantity.cpp           |  5 ++++-
- icu4c/source/test/intltest/numfmtst.cpp                |  8 ++++++++
- .../icu/impl/number/DecimalQuantity_AbstractBCD.java   |  5 ++++-
- .../impl/number/DecimalQuantity_DualStorageBCD.java    | 10 +++++++++-
- .../com/ibm/icu/dev/test/format/NumberFormatTest.java  |  5 +++++
- 6 files changed, 31 insertions(+), 4 deletions(-)
-
-diff --git a/icu4c/source/i18n/fmtable.cpp b/icu4c/source/i18n/fmtable.cpp
-index 45c7024fc29..8601d95f4a6 100644
---- a/icu4c/source/i18n/fmtable.cpp
-+++ b/icu4c/source/i18n/fmtable.cpp
-@@ -734,7 +734,7 @@ CharString *Formattable::internalGetCharString(UErrorCode &status) {
-       // not print scientific notation for magnitudes greater than -5 and smaller than some amount (+5?).
-       if (fDecimalQuantity->isZero()) {
-         fDecimalStr->append("0", -1, status);
--      } else if (std::abs(fDecimalQuantity->getMagnitude()) < 5) {
-+      } else if (fDecimalQuantity->getMagnitude() != INT32_MIN && std::abs(fDecimalQuantity->getMagnitude()) < 5) {
-         fDecimalStr->appendInvariantChars(fDecimalQuantity->toPlainString(), status);
-       } else {
-         fDecimalStr->appendInvariantChars(fDecimalQuantity->toScientificString(), status);
-diff --git a/icu4c/source/i18n/number_decimalquantity.cpp b/icu4c/source/i18n/number_decimalquantity.cpp
-index 2c4182b1c6e..f6f2b20fab0 100644
---- a/icu4c/source/i18n/number_decimalquantity.cpp
-+++ b/icu4c/source/i18n/number_decimalquantity.cpp
-@@ -820,7 +820,10 @@ UnicodeString DecimalQuantity::toScientificString() const {
-     }
-     result.append(u'E');
-     int32_t _scale = upperPos + scale;
--    if (_scale < 0) {
-+    if (_scale == INT32_MIN) {
-+        result.append({u"-2147483648", -1});
-+        return result;
-+    } else if (_scale < 0) {
-         _scale *= -1;
-         result.append(u'-');
-     } else {
-diff --git a/icu4c/source/test/intltest/numfmtst.cpp b/icu4c/source/test/intltest/numfmtst.cpp
-index 34355939113..8d52dc122bf 100644
---- a/icu4c/source/test/intltest/numfmtst.cpp
-+++ b/icu4c/source/test/intltest/numfmtst.cpp
-@@ -9226,6 +9226,14 @@ void NumberFormatTest::Test20037_ScientificIntegerOverflow() {
-     assertEquals(u"Should not overflow and should parse only the first exponent",
-                  u"1E-2147483647",
-                  {sp.data(), sp.length(), US_INV});
-+
-+    // Test edge case overflow of exponent
-+    result = Formattable();
-+    nf->parse(u".0003e-2147483644", result, status);
-+    sp = result.getDecimalNumber(status);
-+    assertEquals(u"Should not overflow",
-+                 u"3E-2147483648",
-+                 {sp.data(), sp.length(), US_INV});
- }
- 
- void NumberFormatTest::Test13840_ParseLongStringCrash() {
diff --git a/external/icu/UnpackedTarball_icu.mk b/external/icu/UnpackedTarball_icu.mk
index 4d45f2108f99..4e23ba2686be 100644
--- a/external/icu/UnpackedTarball_icu.mk
+++ b/external/icu/UnpackedTarball_icu.mk
@@ -41,9 +41,8 @@ $(eval $(call gb_UnpackedTarball_add_patches,icu,\
 	external/icu/icu4c-61-werror-shadow.patch.1 \
 	external/icu/gcc9.patch \
 	external/icu/char8_t.patch \
-	external/icu/CVE-2018-18928.patch.2 \
-	external/icu/clang-cl.patch \
 	external/icu/c++20-comparison.patch \
+	external/icu/icu4c-64-54558d1dd01b29c763ca12b6327108fe3ac66637.patch.2 \
 ))
 
 $(eval $(call gb_UnpackedTarball_add_file,icu,source/data/brkitr/khmerdict.dict,external/icu/khmerdict.dict))
diff --git a/external/icu/clang-cl.patch b/external/icu/clang-cl.patch
deleted file mode 100644
index 83e7baecf266..000000000000
--- a/external/icu/clang-cl.patch
+++ /dev/null
@@ -1,37 +0,0 @@
---- source/common/umutex.h
-+++ source/common/umutex.h
-@@ -54,15 +54,15 @@
- 
- #include <atomic>
- 
--U_NAMESPACE_BEGIN
--
- // Export an explicit template instantiation of std::atomic<int32_t>. 
- // When building DLLs for Windows this is required as it is used as a data member of the exported SharedObject class.
- // See digitlst.h, pluralaffix.h, datefmt.h, and others for similar examples.
- #if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN
- template struct U_COMMON_API std::atomic<int32_t>;
- #endif
- 
-+U_NAMESPACE_BEGIN
-+
- typedef std::atomic<int32_t> u_atomic_int32_t;
- #define ATOMIC_INT32_T_INITIALIZER(val) ATOMIC_VAR_INIT(val)
- 
---- source/i18n/unicode/numberrangeformatter.h
-+++ source/i18n/unicode/numberrangeformatter.h
-@@ -186,7 +186,13 @@
-  * (When building DLLs for Windows this is required.)
-  */
- #if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN && !defined(U_IN_DOXYGEN)
--template struct U_I18N_API std::atomic<impl::NumberRangeFormatterImpl*>;
-+} // namespace number
-+U_NAMESPACE_END
-+
-+template struct U_I18N_API std::atomic< U_NAMESPACE_QUALIFIER number::impl::NumberRangeFormatterImpl*>;
-+
-+U_NAMESPACE_BEGIN
-+namespace number {  // icu::number
- #endif
- /** \endcond */
- 
diff --git a/external/icu/icu4c-64-54558d1dd01b29c763ca12b6327108fe3ac66637.patch.2 b/external/icu/icu4c-64-54558d1dd01b29c763ca12b6327108fe3ac66637.patch.2
new file mode 100644
index 000000000000..5b9a830f6112
--- /dev/null
+++ b/external/icu/icu4c-64-54558d1dd01b29c763ca12b6327108fe3ac66637.patch.2
@@ -0,0 +1,268 @@
+From 54558d1dd01b29c763ca12b6327108fe3ac66637 Mon Sep 17 00:00:00 2001
+From: Alon Bar-Lev <alon.barlev@gmail.com>
+Date: Sat, 30 Mar 2019 09:59:46 +0300
+Subject: [PATCH] ICU-20530 Re-support include under extern "C"
+
+Up until icu-6.3 icu supported include under extern "C" under the explicit
+requirements, see comment of U_NAMESPACE_BEGIN at uversion.h:
+
+ * \def U_NAMESPACE_BEGIN
+ * This is used to begin a declaration of a public ICU C++ API.
+ * When not compiling for C++, it does nothing.
+ * When compiling for C++, it begins an extern "C++" linkage block (to protect
+ * against cases in which an external client includes ICU header files inside
+ * an extern "C" linkage block).
+ *
+ * It also begins a versioned-ICU-namespace block.
+ * @stable ICU 2.4
+
+Recent changes were made to include C++ headers within global scope which
+broke this behavior.
+
+To keep requested behavior add two additional macros U_CXX_BEGIN, U_CXX_END to
+avoid breakage of doxygen while enforcing C++ API visibility.
+
+Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
+---
+ icu4c/source/common/unicode/char16ptr.h       |  5 +++-
+ icu4c/source/common/unicode/localpointer.h    |  2 ++
+ icu4c/source/common/unicode/std_string.h      |  3 +++
+ icu4c/source/common/unicode/umachine.h        | 25 +++++++++++++++++++
+ icu4c/source/common/unicode/unistr.h          |  5 +++-
+ icu4c/source/common/unicode/uversion.h        | 15 ++++-------
+ .../i18n/unicode/numberrangeformatter.h       |  5 +++-
+ icu4c/source/io/unicode/ustream.h             |  2 ++
+ icu4c/source/test/hdrtst/Makefile.in          | 16 ++++++++++--
+ 9 files changed, 63 insertions(+), 15 deletions(-)
+
+diff --git a/icu4c/source/common/unicode/char16ptr.h b/icu4c/source/common/unicode/char16ptr.h
+index a7c5f1a0c5e..f774d7d8b21 100644
+--- a/icu4c/source/common/unicode/char16ptr.h
++++ b/icu4c/source/common/unicode/char16ptr.h
+@@ -7,9 +7,12 @@
+ #ifndef __CHAR16PTR_H__
+ #define __CHAR16PTR_H__
+ 
+-#include <cstddef>
+ #include "unicode/utypes.h"
+ 
++U_CXX_BEGIN
++#include <cstddef>
++U_CXX_END
++
+ /**
+  * \file
+  * \brief C++ API: char16_t pointer wrappers with
+diff --git a/icu4c/source/common/unicode/localpointer.h b/icu4c/source/common/unicode/localpointer.h
+index e011688b1a5..fd26dc40e9d 100644
+--- a/icu4c/source/common/unicode/localpointer.h
++++ b/icu4c/source/common/unicode/localpointer.h
+@@ -42,7 +42,9 @@
+ 
+ #if U_SHOW_CPLUSPLUS_API
+ 
++U_CXX_BEGIN
+ #include <memory>
++U_CXX_END
+ 
+ U_NAMESPACE_BEGIN
+ 
+diff --git a/icu4c/source/common/unicode/std_string.h b/icu4c/source/common/unicode/std_string.h
+index 729c5639950..d293e714fe0 100644
+--- a/icu4c/source/common/unicode/std_string.h
++++ b/icu4c/source/common/unicode/std_string.h
+@@ -32,6 +32,9 @@
+ #if defined(__GLIBCXX__)
+ namespace std { class type_info; }
+ #endif
++
++U_CXX_BEGIN
+ #include <string>
++U_CXX_END
+ 
+ #endif  // __STD_STRING_H__
+diff --git a/icu4c/source/common/unicode/umachine.h b/icu4c/source/common/unicode/umachine.h
+index 0205da62eb4..6137c125df4 100644
+--- a/icu4c/source/common/unicode/umachine.h
++++ b/icu4c/source/common/unicode/umachine.h
+@@ -75,14 +75,39 @@
+  * @stable ICU 2.4
+  */
+ 
++/**
++ * \def U_CXX_BEGIN
++ * This is used to begin a C++ block.
++ * When not compiling for C++, it does nothing.
++ * When compiling for C++, it begins an extern "C++" linkage block (to protect
++ * against cases in which an external client includes ICU header files inside
++ * an extern "C" linkage block).
++ *
++ * @draft ICU 65
++ */
++
++/**
++ * \def U_CXX_END
++ * This is used to end a declaration of a C++ API.
++ * When not compiling for C++, it does nothing.
++ * When compiling for C++, it ends the extern "C++" block begun by
++ * U_CXX_BEGIN.
++ *
++ * @draft ICU 65
++ */
++
+ #ifdef __cplusplus
+ #   define U_CFUNC extern "C"
+ #   define U_CDECL_BEGIN extern "C" {
+ #   define U_CDECL_END   }
++#   define U_CXX_BEGIN extern "C++" {
++#   define U_CXX_END }
+ #else
+ #   define U_CFUNC extern
+ #   define U_CDECL_BEGIN
+ #   define U_CDECL_END
++#   define U_CXX_BEGIN
++#   define U_CXX_END
+ #endif
+ 
+ #ifndef U_ATTRIBUTE_DEPRECATED
+diff --git a/icu4c/source/common/unicode/unistr.h b/icu4c/source/common/unicode/unistr.h
+index d79168b9195..c323e33c07c 100644
+--- a/icu4c/source/common/unicode/unistr.h
++++ b/icu4c/source/common/unicode/unistr.h
+@@ -28,7 +28,6 @@
+  * \brief C++ API: Unicode String
+  */
+ 
+-#include <cstddef>
+ #include "unicode/utypes.h"
+ #include "unicode/char16ptr.h"
+ #include "unicode/rep.h"
+@@ -36,6 +35,10 @@
+ #include "unicode/stringpiece.h"
+ #include "unicode/bytestream.h"
+ 
++U_CXX_BEGIN
++#include <cstddef>
++U_CXX_END
++
+ struct UConverter;          // unicode/ucnv.h
+ 
+ #ifndef USTRING_H
+diff --git a/icu4c/source/common/unicode/uversion.h b/icu4c/source/common/unicode/uversion.h
+index 4aaa8b4d606..9e6bd13734f 100644
+--- a/icu4c/source/common/unicode/uversion.h
++++ b/icu4c/source/common/unicode/uversion.h
+@@ -64,13 +64,10 @@ typedef uint8_t UVersionInfo[U_MAX_VERSION_LENGTH];
+ 
+ /**
+  * \def U_NAMESPACE_BEGIN
+- * This is used to begin a declaration of a public ICU C++ API.
++ * This is used to begin a declaration of a public ICU C++ API within
++ * versioned-ICU-namespace block.
+  * When not compiling for C++, it does nothing.
+- * When compiling for C++, it begins an extern "C++" linkage block (to protect
+- * against cases in which an external client includes ICU header files inside
+- * an extern "C" linkage block).
+  *
+- * It also begins a versioned-ICU-namespace block.
+  * @stable ICU 2.4
+  */
+ 
+@@ -78,10 +75,8 @@ typedef uint8_t UVersionInfo[U_MAX_VERSION_LENGTH];
+  * \def U_NAMESPACE_END
+  * This is used to end a declaration of a public ICU C++ API.
+  * When not compiling for C++, it does nothing.
+- * When compiling for C++, it ends the extern "C++" block begun by
+- * U_NAMESPACE_BEGIN.
++ * It ends the versioned-ICU-namespace block begun by U_NAMESPACE_BEGIN.
+  *
+- * It also ends the versioned-ICU-namespace block begun by U_NAMESPACE_BEGIN.
+  * @stable ICU 2.4
+  */
+ 
+@@ -116,8 +111,8 @@ typedef uint8_t UVersionInfo[U_MAX_VERSION_LENGTH];
+         namespace icu = U_ICU_NAMESPACE;
+ #   endif
+ 
+-#   define U_NAMESPACE_BEGIN extern "C++" { namespace U_ICU_NAMESPACE {
+-#   define U_NAMESPACE_END } }
++#   define U_NAMESPACE_BEGIN U_CXX_BEGIN namespace U_ICU_NAMESPACE {
++#   define U_NAMESPACE_END } U_CXX_END
+ #   define U_NAMESPACE_USE using namespace U_ICU_NAMESPACE;
+ #   define U_NAMESPACE_QUALIFIER U_ICU_NAMESPACE::
+ 
+diff --git a/icu4c/source/i18n/unicode/numberrangeformatter.h b/icu4c/source/i18n/unicode/numberrangeformatter.h
+index 4a386b80394..0c6eb62ae1f 100644
+--- a/icu4c/source/i18n/unicode/numberrangeformatter.h
++++ b/icu4c/source/i18n/unicode/numberrangeformatter.h
+@@ -5,13 +5,16 @@
+ #ifndef __NUMBERRANGEFORMATTER_H__
+ #define __NUMBERRANGEFORMATTER_H__
+ 
+-#include <atomic>
+ #include "unicode/appendable.h"
+ #include "unicode/fieldpos.h"
+ #include "unicode/formattedvalue.h"
+ #include "unicode/fpositer.h"
+ #include "unicode/numberformatter.h"
+ 
++U_CXX_BEGIN
++#include <atomic>
++U_CXX_END
++
+ #ifndef U_HIDE_DRAFT_API
+ 
+ /**
+diff --git a/icu4c/source/io/unicode/ustream.h b/icu4c/source/io/unicode/ustream.h
+index c10ce6a2de5..e1ec87c75d3 100644
+--- a/icu4c/source/io/unicode/ustream.h
++++ b/icu4c/source/io/unicode/ustream.h
+@@ -34,7 +34,9 @@
+ namespace std { class type_info; } // WORKAROUND: http://llvm.org/bugs/show_bug.cgi?id=13364
+ #endif
+ 
++U_CXX_BEGIN
+ #include <iostream>
++U_CXX_END
+ 
+ U_NAMESPACE_BEGIN
+ 
+diff --git a/icu4c/source/test/hdrtst/Makefile.in b/icu4c/source/test/hdrtst/Makefile.in
+index 55e833943d5..a485f7a80d6 100644
+--- a/icu4c/source/test/hdrtst/Makefile.in
++++ b/icu4c/source/test/hdrtst/Makefile.in
+@@ -53,7 +53,7 @@ E_DEP="[6/$(E_NUM)] Hide Deprecated: "
+ E_INT="[7/$(E_NUM)] Hide Internal: "
+ E_OBS="[8/$(E_NUM)] Hide Obsolete: "
+ 
+-check: dtest ctest cpptest doclean drafttest deprtest internaltest obsoletetest
++check: dtest ctest cpptest cpptest_extern_c doclean drafttest deprtest internaltest obsoletetest
+ ifeq ($(MAKECMDGOALS),check)
+ 	$(MAKE) clean
+ else
+@@ -74,6 +74,18 @@ cpptest:
+ 	done ;\
+ 	exit $$FAIL
+ 
++cpptest_extern_c:
++	@FAIL=0;for file in `ls $(prefix)/include/unicode/*.h | fgrep -v -f $(srcdir)/pfiles.txt`; do \
++	  incfile=`basename $$file .h` ; \
++	  echo "$@ unicode/$$incfile.h" ; \
++	  echo 'extern "C" {' > ht_$$incfile.cpp ; \
++	  echo '#include "'unicode/$$incfile'.h"' >> ht_$$incfile.cpp ; \
++	  echo '}' >> ht_$$incfile.cpp ; \
++	  echo 'void junk(){}' >> ht_$$incfile.cpp ; \
++          $(COMPILE.cc) -c $(cppflags) ht_$$incfile.cpp || FAIL=1 ; \
++	done ;\
++	exit $$FAIL
++
+ # layout is removed
+ 
+ dtest:
+@@ -170,5 +182,5 @@ Makefile: $(srcdir)/Makefile.in  $(top_builddir)/config.status
+ 	cd $(top_builddir) \
+ 	&& CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status
+ 
+-.PHONY:	doclean check all cpptest dtest ctest clean distclean
++.PHONY:	doclean check all cpptest cpptest_extern_c dtest ctest clean distclean
+ 
diff --git a/external/icu/icu4c-build.patch.1 b/external/icu/icu4c-build.patch.1
index 6d9ade608cb5..a878de732322 100644
--- a/external/icu/icu4c-build.patch.1
+++ b/external/icu/icu4c-build.patch.1
@@ -8,7 +8,7 @@ diff -ur icu.org/source/config/mh-darwin icu/source/config/mh-darwin
 -ifeq ($(ENABLE_RPATH),YES)
 -LD_SONAME = -Wl,-compatibility_version -Wl,$(SO_TARGET_VERSION_MAJOR) -Wl,-current_version -Wl,$(SO_TARGET_VERSION) -install_name $(libdir)/$(notdir $(MIDDLE_SO_TARGET))
 -else
--LD_SONAME = -Wl,-compatibility_version -Wl,$(SO_TARGET_VERSION_MAJOR) -Wl,-current_version -Wl,$(SO_TARGET_VERSION) -install_name $(notdir $(MIDDLE_SO_TARGET))
+-LD_SONAME = -Wl,-compatibility_version -Wl,$(SO_TARGET_VERSION_MAJOR) -Wl,-current_version -Wl,$(SO_TARGET_VERSION) -install_name $(notdir $(MIDDLE_SO_TARGET)) $(PKGDATA_TRAILING_SPACE)
 -endif
 +LD_SONAME = -Wl,-compatibility_version -Wl,$(SO_TARGET_VERSION_MAJOR) -Wl,-current_version -Wl,$(SO_TARGET_VERSION) -install_name @__________________________________________________URELIB/$(notdir $(MIDDLE_SO_TARGET))
  
diff --git a/external/icu/icu4c-khmerbreakengine.patch.1 b/external/icu/icu4c-khmerbreakengine.patch.1
index 65f7cc0d774f..7992da6fc18f 100644
--- a/external/icu/icu4c-khmerbreakengine.patch.1
+++ b/external/icu/icu4c-khmerbreakengine.patch.1
@@ -192,37 +192,16 @@ diff -ur icu.org/source/common/dictbe.cpp icu/source/common/dictbe.cpp
  /*
   ******************************************************************
   * PossibleWord
-@@ -103,35 +278,35 @@
- public:
-     PossibleWord() : count(0), prefix(0), offset(-1), mark(0), current(0) {};
-     ~PossibleWord() {};
--  
-+
+@@ -282,7 +282,7 @@
+     ~PossibleWord() {}
+   
      // Fill the list of candidates if needed, select the longest, and return the number found
 -    int32_t   candidates( UText *text, DictionaryMatcher *dict, int32_t rangeEnd );
--  
 +    int32_t   candidates( UText *text, DictionaryMatcher *dict, int32_t rangeEnd, UnicodeSet const *ignoreSet = NULL, int32_t minLength = 0 );
-+
+   
      // Select the currently marked candidate, point after it in the text, and invalidate self
      int32_t   acceptMarked( UText *text );
--  
-+
-     // Back up from the current candidate to the next shorter one; return TRUE if that exists
-     // and point the text after it
-     UBool     backUp( UText *text );
--  
-+
-     // Return the longest prefix this candidate location shares with a dictionary word
-     // Return value is in code points.
-     int32_t   longestPrefix() { return prefix; };
--  
-+
-     // Mark the current candidate as the one we like
-     void      markCurrent() { mark = current; };
--    
-+
-     // Get length in code points of the marked word.
-     int32_t   markedCPLength() { return cpLengths[mark]; };
+@@ -303,12 +303,12 @@
  };
  
  
@@ -1085,32 +1064,3 @@ diff -ur icu.org/source/common/dictionarydata.h icu/source/common/dictionarydata
      virtual int32_t getType() const;
  private:
      UChar32 transform(UChar32 c) const;
-diff -ur icu.org/source/data/Makefile.in icu/source/data/Makefile.in
---- icu.org/source/data/Makefile.in	2018-10-19 14:20:11.031075856 +0200
-+++ icu/source/data/Makefile.in	2018-10-19 14:21:00.339942804 +0200
-@@ -183,7 +183,7 @@
- endif
- endif
- 
--packagedata: icupkg.inc $(PKGDATA_LIST) build-local
-+packagedata: icupkg.inc $(PKGDATA_LIST) build-local $(MAINBUILDDIR)/khmerdict.stamp
- ifneq ($(ENABLE_STATIC),)
- ifeq ($(PKGDATA_MODE),dll)
- 	$(PKGDATA_INVOKE) $(PKGDATA) -e $(ICUDATA_ENTRY_POINT) -T $(OUTTMPDIR) -p $(ICUDATA_NAME) $(PKGDATA_LIBSTATICNAME) -m static $(PKGDATA_VERSIONING) $(PKGDATA_LIST)
-@@ -567,8 +567,14 @@
- 	$(INVOKE) $(TOOLBINDIR)/gendict --bytes --transform offset-0x1000 -c -i $(BUILDDIR) $(DICTSRCDIR)/burmesedict.txt $(BRKBLDDIR)/burmesedict.dict
- 
- # TODO: figure out why combining characters are here?
--$(BRKBLDDIR)/khmerdict.dict: $(TOOLBINDIR)/gendict$(TOOLEXEEXT) $(DAT_FILES)
--	$(INVOKE) $(TOOLBINDIR)/gendict --bytes --transform offset-0x1780 -c -i $(BUILDDIR) $(DICTSRCDIR)/khmerdict.txt $(BRKBLDDIR)/khmerdict.dict
-+#$(BRKBLDDIR)/khmerdict.dict: $(TOOLBINDIR)/gendict$(TOOLEXEEXT) $(DAT_FILES)
-+#	$(INVOKE) $(TOOLBINDIR)/gendict --bytes --transform offset-0x1780 -c -i $(BUILDDIR) $(DICTSRCDIR)/khmerdict.txt $(BRKBLDDIR)/khmerdict.dict
-+
-+#$(MAINBUILDDIR)/khmerdict.stamp: $(TOOLBINDIR)/gendict$(TOOLEXEEXT) $(BRKSRCDIR)/khmerdict.txt build-local
-+# 	$(INVOKE) $(TOOLBINDIR)/gendict --bytes --transform offset-0x1780 -c -i $(BUILDDIR) $(DICTSRCDIR)/khmerdict.txt $(BRKBLDDIR)/khmerdict.dict
-+$(MAINBUILDDIR)/khmerdict.stamp: $(BRKSRCDIR)/khmerdict.dict build-local
-+	cp $< $(BRKBLDDIR)
-+	echo "timestamp" > $@
- 
- ####################################################    CFU
- # CFU FILES
diff --git a/external/icu/icu4c-mkdir.patch.1 b/external/icu/icu4c-mkdir.patch.1
index 7de4cf51174c..112e57cc2910 100644
--- a/external/icu/icu4c-mkdir.patch.1
+++ b/external/icu/icu4c-mkdir.patch.1
@@ -1,10 +1,10 @@
 diff -ur icu.org/source/data/Makefile.in icu/source/data/Makefile.in
---- icu.org/source/data/Makefile.in	2018-06-21 11:39:15.000000000 +0200
-+++ icu/source/data/Makefile.in	2018-07-16 13:18:26.928109541 +0200
-@@ -367,6 +367,7 @@
+--- icu.org/source/data/Makefile.in	2019-04-17 21:42:15.000000000 +0200
++++ icu/source/data/Makefile.in	2019-10-28 12:57:15.033649494 +0100
+@@ -226,6 +226,7 @@
  ifeq ($(PKGDATA_MODE),dll)
  SO_VERSION_DATA = $(OUTTMPDIR)/icudata.res
- $(SO_VERSION_DATA) : $(MISCSRCDIR)/icudata.rc | build-dir
+ $(SO_VERSION_DATA) : $(MISCSRCDIR)/icudata.rc
 +	mkdir -p $(OUTTMPDIR)
  ifeq ($(MSYS_RC_MODE),1)
  	rc.exe -i$(srcdir)/../common -i$(top_builddir)/common -fo$@ $(CPPFLAGS) $<
diff --git a/external/icu/icu4c-rpath.patch.1 b/external/icu/icu4c-rpath.patch.1
index debbab1a6e3d..35a5457780c4 100644
--- a/external/icu/icu4c-rpath.patch.1
+++ b/external/icu/icu4c-rpath.patch.1
@@ -15,9 +15,9 @@ diff -ur icu.org/source/config/mh-linux icu/source/config/mh-linux
 diff -ur icu.org/source/data/pkgdataMakefile.in icu/source/data/pkgdataMakefile.in
 --- icu.org/source/data/pkgdataMakefile.in	2016-06-15 20:58:17.000000000 +0200
 +++ icu/source/data/pkgdataMakefile.in	2017-04-21 22:38:18.892927822 +0200
-@@ -17,6 +17,9 @@
- OUTPUTFILE=icupkg.inc
+@@ -18,6 +18,9 @@
  MIDDLE_SO_TARGET=
+ PKGDATA_TRAILING_SPACE=" "
  
 +# escape $ with \ when passing to echo; needed to preserve $ORIGIN
 +SHLIB.c.shell := $(subst $$,\$$,$(SHLIB.c))
diff --git a/i18nutil/source/utility/unicode.cxx b/i18nutil/source/utility/unicode.cxx
index e8a6aadb16b9..95b455683833 100644
--- a/i18nutil/source/utility/unicode.cxx
+++ b/i18nutil/source/utility/unicode.cxx
@@ -749,6 +749,20 @@ OString unicode::getExemplarLanguageForUScriptCode(UScriptCode eScript)
             sRet = "sog";
             break;
 #endif
+#if (U_ICU_VERSION_MAJOR_NUM >= 64)
+        case USCRIPT_ELYMAIC:
+            sRet = "arc-Elym";
+            break;
+        case USCRIPT_NYIAKENG_PUACHUE_HMONG:
+            sRet = "hmn-Hmnp";  // macrolanguage code
+            break;
+        case USCRIPT_NANDINAGARI:
+            sRet = "sa-Nand";
+            break;
+        case USCRIPT_WANCHO:
+            sRet = "nnp-Wcho";
+            break;
+#endif
     }
     return sRet;
 }
diff --git a/include/svx/strings.hrc b/include/svx/strings.hrc
index 1d00726183b2..2ad744afa29e 100644
--- a/include/svx/strings.hrc
+++ b/include/svx/strings.hrc
@@ -1682,6 +1682,15 @@
 #define RID_SUBSETSTR_MEDEFAIDRIN                           NC_("RID_SUBSETMAP", "Medefaidrin")
 #define RID_SUBSETSTR_OLD_SOGDIAN                           NC_("RID_SUBSETMAP", "Old Sogdian")
 #define RID_SUBSETSTR_SOGDIAN                               NC_("RID_SUBSETMAP", "Sogdian")
+#define RID_SUBSETSTR_EGYPTIAN_HIEROGLYPH_FORMAT_CONTROLS   NC_("RID_SUBSETMAP", "Egyptian Hieroglyph Format Controls")
+#define RID_SUBSETSTR_ELYMAIC                               NC_("RID_SUBSETMAP", "Elymaic")
+#define RID_SUBSETSTR_NANDINAGARI                           NC_("RID_SUBSETMAP", "Nandinagari")
+#define RID_SUBSETSTR_NYIAKENG_PUACHUE_HMONG                NC_("RID_SUBSETMAP", "Nyiakeng Puachue Hmong")
+#define RID_SUBSETSTR_OTTOMAN_SIYAQ_NUMBERS                 NC_("RID_SUBSETMAP", "Ottoman Siyaq Numbers")
+#define RID_SUBSETSTR_SMALL_KANA_EXTENSION                  NC_("RID_SUBSETMAP", "Small Kana Extension")
+#define RID_SUBSETSTR_SYMBOLS_AND_PICTOGRAPHS_EXTENDED_A    NC_("RID_SUBSETMAP", "Symbols and Pictographs Extended-A")
+#define RID_SUBSETSTR_TAMIL_SUPPLEMENT                      NC_("RID_SUBSETMAP", "Tamil Supplement")
+#define RID_SUBSETSTR_WANCHO                                NC_("RID_SUBSETMAP", "Wancho")
 
 #define RID_SVXSTR_FRAMEDIR_LTR                             NC_("RID_SVXSTR_FRAMEDIR_LTR", "Left-to-right (LTR)")
 #define RID_SVXSTR_FRAMEDIR_RTL                             NC_("RID_SVXSTR_FRAMEDIR_RTL", "Right-to-left (RTL)")
diff --git a/svx/source/dialog/charmap.cxx b/svx/source/dialog/charmap.cxx
index f53bc4bd6901..d136104b5e50 100644
--- a/svx/source/dialog/charmap.cxx
+++ b/svx/source/dialog/charmap.cxx
@@ -1777,6 +1777,35 @@ void SubsetMap::InitList()
                     aAllSubsets.emplace_back( 0x10F30, 0x10F6F, SvxResId(RID_SUBSETSTR_SOGDIAN) );
                     break;
 #endif
+#if (U_ICU_VERSION_MAJOR_NUM >= 64)
+                case UBLOCK_EGYPTIAN_HIEROGLYPH_FORMAT_CONTROLS:
+                    aAllSubsets.emplace_back( 0x13430, 0x1343F, SvxResId(RID_SUBSETSTR_EGYPTIAN_HIEROGLYPH_FORMAT_CONTROLS) );
+                    break;
+                case UBLOCK_ELYMAIC:
+                    aAllSubsets.emplace_back( 0x10FE0, 0x10FFF, SvxResId(RID_SUBSETSTR_ELYMAIC) );
+                    break;
+                case UBLOCK_NANDINAGARI:
+                    aAllSubsets.emplace_back( 0x119A0, 0x119FF, SvxResId(RID_SUBSETSTR_NANDINAGARI) );
+                    break;
+                case UBLOCK_NYIAKENG_PUACHUE_HMONG:
+                    aAllSubsets.emplace_back( 0x1E100, 0x1E14F, SvxResId(RID_SUBSETSTR_NYIAKENG_PUACHUE_HMONG) );
+                    break;
+                case UBLOCK_OTTOMAN_SIYAQ_NUMBERS:
+                    aAllSubsets.emplace_back( 0x1ED00, 0x1ED4F, SvxResId(RID_SUBSETSTR_OTTOMAN_SIYAQ_NUMBERS) );
+                    break;
+                case UBLOCK_SMALL_KANA_EXTENSION:
+                    aAllSubsets.emplace_back( 0x1B130, 0x1B16F, SvxResId(RID_SUBSETSTR_SMALL_KANA_EXTENSION) );
+                    break;
+                case UBLOCK_SYMBOLS_AND_PICTOGRAPHS_EXTENDED_A:
+                    aAllSubsets.emplace_back( 0x1FA70, 0x1FAFF, SvxResId(RID_SUBSETSTR_SYMBOLS_AND_PICTOGRAPHS_EXTENDED_A) );
+                    break;
+                case UBLOCK_TAMIL_SUPPLEMENT:
+                    aAllSubsets.emplace_back( 0x11FC0, 0x11FFF, SvxResId(RID_SUBSETSTR_TAMIL_SUPPLEMENT) );
+                    break;
+                case UBLOCK_WANCHO:
+                    aAllSubsets.emplace_back( 0x1E2C0, 0x1E2FF, SvxResId(RID_SUBSETSTR_WANCHO) );
+                    break;
+#endif
 
             }