Upgrade external/boost to latest Boost 1.81.0

<https://dev-www.libreoffice.org/src/boost_1_81_0.tar.xz> has been generated (on
Fedora 37) with

> $ wget https://boostorg.jfrog.io/artifactory/main/release/1.81.0/source/boost_1_81_0.tar.bz2
> $ printf '71feeed900fbccca04a3b4f2f84a7c217186f28a940ed8b7ed4725986baf99fa boost_1_81_0.tar.bz2' | sha256sum -c # cf. <https://www.boost.org/users/history/version_1_81_0.html>
> boost_1_81_0.tar.bz2: OK
> $ external/boost/repack_tarball.sh boost_1_81_0.tar.bz2
> Unpacking boost_1_81_0.tar.bz2 ...
> Removing unnecessary files ...
> Creating boost_1_81_0.tar.xz ...
> Cleaning up ...
> 1deb0a5a9e33a6626fcaa1d2efd4c0e74ca2b0eea87c1559e3917f3066b633d6  boost_1_81_0.tar.xz
> Done.

* external/boost/windows-no-utf8-locales.patch.0, introduced with
f046fed2782f0d4244aff719ba70a56399a2583a "Don't ever attempt to initialise a
std::locale with a UTF-8 locale on Windows", was presumably obsoleted by
<https://github.com/boostorg/locale/commit/f45adfc9b963feacc827c3754e2549dd0cffaecb>
"Use UTF-16 <-> UTF-8 codecvt on Windows".

* external/boost/libc++.patch.0 was obsoleted by
<https://github.com/boostorg/config/commit/f0af4a9184457939b89110795ae2d293582c5f66>
"The std lib unary/binary_function base classes are deprecated/removed from
libcpp15."

* external/boost/0001-Change-mpl-integral_c-to-boost-integral_constant-to-.patch.2
was obsoleted by
<https://github.com/boostorg/numeric_conversion/commit/50a1eae942effb0a9b90724323ef8f2a67e7984a>
"Change mpl::integral_c to boost::integral_constant to avoid Clang 16 errors
when constructing out of range enums (refs #24, boostorg/mpl#69)".

* external/boost/0001-Avoid-boost-phoenix-placeholders-uarg1.10-ODR-violat.patch.2
is needed to e.g. avoid
> ./.libs/libetonyek_internal.a(libetonyek_internal_la-KEY1DivElement.o):(.bss+0x3e): multiple definition of `boost::phoenix::placeholders::uarg1'; ./.libs/libetonyek_internal.a(libetonyek_internal_la-IWORKFormula.o):(.bss+0x3e): first defined here
etc. while building ExternalProject_libetonyek, caused by
<https://github.com/boostorg/phoenix/commit/8b6a9c26c115bc2cefea300b5c0abf7edf6dd9b7>
"std::tuple support (Resolving #103) (#104)".

Change-Id: I48773166d0c50f2850d8bb37fa6215d9e5c0d51d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/145044
Tested-by: Jenkins
Reviewed-by: Tor Lillqvist <tml@collabora.com>

8 files changed, 79 insertions, 179 deletions

diff --git a/external/boost/0001-Avoid-boost-phoenix-placeholders-uarg1.10-ODR-violat.patch.2 b/external/boost/0001-Avoid-boost-phoenix-placeholders-uarg1.10-ODR-violat.patch.2
new file mode 100644
index 000000000000..e0989727fb5a
--- /dev/null
+++ b/external/boost/0001-Avoid-boost-phoenix-placeholders-uarg1.10-ODR-violat.patch.2
@@ -0,0 +1,27 @@
+From 50973dc10ea16931245ea61a00b2ce9041acc5ba Mon Sep 17 00:00:00 2001
+From: Stephan Bergmann <sbergman@redhat.com>
+Date: Wed, 4 Jan 2023 17:33:31 +0100
+Subject: [PATCH] Avoid boost::phoenix::placeholders::uarg1..10 ODR violations
+
+Those variables, defined in an include file, had external linkage, causing ODR
+violations.  Make them const to implicitly give them internal linkage.
+---
+ include/boost/phoenix/stl/tuple.hpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/include/boost/phoenix/stl/tuple.hpp b/include/boost/phoenix/stl/tuple.hpp
+index a83014a..7f61a40 100644
+--- a/include/boost/phoenix/stl/tuple.hpp
++++ b/include/boost/phoenix/stl/tuple.hpp
+@@ -110,7 +110,7 @@ namespace boost { namespace phoenix {
+     namespace placeholders {
+         #define BOOST_PP_LOCAL_LIMITS (1, BOOST_PHOENIX_ARG_LIMIT)
+         #define BOOST_PP_LOCAL_MACRO(N)                                                \
+-            auto uarg##N =                                                             \
++            auto const uarg##N =                                                       \
+             boost::phoenix::get_<(N)-1>(boost::phoenix::placeholders::arg1);
+         #include BOOST_PP_LOCAL_ITERATE()
+     }
+-- 
+2.38.1
+
diff --git a/external/boost/0001-Change-mpl-integral_c-to-boost-integral_constant-to-.patch.2 b/external/boost/0001-Change-mpl-integral_c-to-boost-integral_constant-to-.patch.2
deleted file mode 100644
index 643ec0fd0fb7..000000000000
--- a/external/boost/0001-Change-mpl-integral_c-to-boost-integral_constant-to-.patch.2
+++ /dev/null
@@ -1,91 +0,0 @@
-From 50a1eae942effb0a9b90724323ef8f2a67e7984a Mon Sep 17 00:00:00 2001
-From: Peter Dimov <pdimov@gmail.com>
-Date: Wed, 16 Nov 2022 10:43:31 +0200
-Subject: [PATCH] Change mpl::integral_c to boost::integral_constant to avoid
- Clang 16 errors when constructing out of range enums (refs #24,
- https://github.com/boostorg/mpl/issues/69)
-
----
- .../numeric/conversion/detail/int_float_mixture.hpp    | 10 +++++-----
- .../boost/numeric/conversion/detail/sign_mixture.hpp   | 10 +++++-----
- .../numeric/conversion/detail/udt_builtin_mixture.hpp  | 10 +++++-----
- 3 files changed, 15 insertions(+), 15 deletions(-)
-
-diff --git a/include/boost/numeric/conversion/detail/int_float_mixture.hpp b/include/boost/numeric/conversion/detail/int_float_mixture.hpp
-index 464e527..7690d07 100644
---- a/include/boost/numeric/conversion/detail/int_float_mixture.hpp
-+++ b/include/boost/numeric/conversion/detail/int_float_mixture.hpp
-@@ -16,15 +16,15 @@
- #include "boost/numeric/conversion/int_float_mixture_enum.hpp"
- #include "boost/numeric/conversion/detail/meta.hpp"
- 
--#include "boost/mpl/integral_c.hpp"
-+#include "boost/type_traits/integral_constant.hpp"
- 
- namespace boost { namespace numeric { namespace convdetail
- {
-   // Integral Constants for 'IntFloatMixture'
--  typedef mpl::integral_c<int_float_mixture_enum, integral_to_integral> int2int_c ;
--  typedef mpl::integral_c<int_float_mixture_enum, integral_to_float>    int2float_c ;
--  typedef mpl::integral_c<int_float_mixture_enum, float_to_integral>    float2int_c ;
--  typedef mpl::integral_c<int_float_mixture_enum, float_to_float>       float2float_c ;
-+  typedef boost::integral_constant<int_float_mixture_enum, integral_to_integral> int2int_c ;
-+  typedef boost::integral_constant<int_float_mixture_enum, integral_to_float>    int2float_c ;
-+  typedef boost::integral_constant<int_float_mixture_enum, float_to_integral>    float2int_c ;
-+  typedef boost::integral_constant<int_float_mixture_enum, float_to_float>       float2float_c ;
- 
-   // Metafunction:
-   //
-diff --git a/include/boost/numeric/conversion/detail/sign_mixture.hpp b/include/boost/numeric/conversion/detail/sign_mixture.hpp
-index c7f9e42..fde1584 100644
---- a/include/boost/numeric/conversion/detail/sign_mixture.hpp
-+++ b/include/boost/numeric/conversion/detail/sign_mixture.hpp
-@@ -16,15 +16,15 @@
- #include "boost/numeric/conversion/sign_mixture_enum.hpp"
- #include "boost/numeric/conversion/detail/meta.hpp"
- 
--#include "boost/mpl/integral_c.hpp"
-+#include "boost/type_traits/integral_constant.hpp"
- 
- namespace boost { namespace numeric { namespace convdetail
- {
-   // Integral Constants for 'SignMixture'
--  typedef mpl::integral_c<sign_mixture_enum, unsigned_to_unsigned> unsig2unsig_c ;
--  typedef mpl::integral_c<sign_mixture_enum, signed_to_signed>     sig2sig_c ;
--  typedef mpl::integral_c<sign_mixture_enum, signed_to_unsigned>   sig2unsig_c ;
--  typedef mpl::integral_c<sign_mixture_enum, unsigned_to_signed>   unsig2sig_c ;
-+  typedef boost::integral_constant<sign_mixture_enum, unsigned_to_unsigned> unsig2unsig_c ;
-+  typedef boost::integral_constant<sign_mixture_enum, signed_to_signed>     sig2sig_c ;
-+  typedef boost::integral_constant<sign_mixture_enum, signed_to_unsigned>   sig2unsig_c ;
-+  typedef boost::integral_constant<sign_mixture_enum, unsigned_to_signed>   unsig2sig_c ;
- 
-   // Metafunction:
-   //
-diff --git a/include/boost/numeric/conversion/detail/udt_builtin_mixture.hpp b/include/boost/numeric/conversion/detail/udt_builtin_mixture.hpp
-index 36dbc49..a39d29f 100644
---- a/include/boost/numeric/conversion/detail/udt_builtin_mixture.hpp
-+++ b/include/boost/numeric/conversion/detail/udt_builtin_mixture.hpp
-@@ -15,15 +15,15 @@
- #include "boost/numeric/conversion/udt_builtin_mixture_enum.hpp"
- #include "boost/numeric/conversion/detail/meta.hpp"
- 
--#include "boost/mpl/integral_c.hpp"
-+#include "boost/type_traits/integral_constant.hpp"
- 
- namespace boost { namespace numeric { namespace convdetail
- {
-   // Integral Constants for 'UdtMixture'
--  typedef mpl::integral_c<udt_builtin_mixture_enum, builtin_to_builtin> builtin2builtin_c ;
--  typedef mpl::integral_c<udt_builtin_mixture_enum, builtin_to_udt>     builtin2udt_c ;
--  typedef mpl::integral_c<udt_builtin_mixture_enum, udt_to_builtin>     udt2builtin_c ;
--  typedef mpl::integral_c<udt_builtin_mixture_enum, udt_to_udt>         udt2udt_c ;
-+  typedef boost::integral_constant<udt_builtin_mixture_enum, builtin_to_builtin> builtin2builtin_c ;
-+  typedef boost::integral_constant<udt_builtin_mixture_enum, builtin_to_udt>     builtin2udt_c ;
-+  typedef boost::integral_constant<udt_builtin_mixture_enum, udt_to_builtin>     udt2builtin_c ;
-+  typedef boost::integral_constant<udt_builtin_mixture_enum, udt_to_udt>         udt2udt_c ;
- 
-   // Metafunction:
-   //
--- 
-2.37.1 (Apple Git-137.1)
-
diff --git a/external/boost/UnpackedTarball_boost.mk b/external/boost/UnpackedTarball_boost.mk
index d3c945282b0d..acdc5d331c76 100644
--- a/external/boost/UnpackedTarball_boost.mk
+++ b/external/boost/UnpackedTarball_boost.mk
@@ -27,17 +27,13 @@ boost_patches += clang-cl.patch.0
 
 boost_patches += boost_1_63_0.undef.warning.patch.1
 
-boost_patches += windows-no-utf8-locales.patch.0
-
 boost_patches += msvc2017.patch.0
 
-boost_patches += libc++.patch.0
-
 boost_patches += boost-ios.patch.0
 
-# <https://github.com/boostorg/numeric_conversion/pull/25> "Fix ill-formed constant expression
-# errors":
-boost_patches += 0001-Change-mpl-integral_c-to-boost-integral_constant-to-.patch.2
+# <https://github.com/boostorg/phoenix/pull/116> "Avoid boost::phoenix::placeholders::uarg1..10 ODR
+# violations":
+boost_patches += 0001-Avoid-boost-phoenix-placeholders-uarg1.10-ODR-violat.patch.2
 
 $(eval $(call gb_UnpackedTarball_UnpackedTarball,boost))
 
diff --git a/external/boost/boost.between.warning.patch b/external/boost/boost.between.warning.patch
index 47a11ab0493f..8c9ba65a1d39 100644
--- a/external/boost/boost.between.warning.patch
+++ b/external/boost/boost.between.warning.patch
@@ -2,12 +2,12 @@ diff -ru boost.orig/boost/libs/locale/src/encoding/codepage.cpp boost/boost/libs
 --- foo/misc/boost.orig/libs/locale/src/encoding/codepage.cpp
 +++ foo/misc/boost/libs/locale/src/boost/locale/encoding/codepage.cpp
 @@ -58,6 +58,9 @@
-                         return cvt->convert(begin,end);
-                     #endif
-                     #endif
-+		    // ensures we get a sensible warning in boost's gettext results about a real mismatch.
-+		    if (to_charset && from_charset && !strcmp(to_charset, from_charset))
-+			    return std::string(begin, end - begin);
-                     throw invalid_charset_error(std::string(to_charset) + " or " + from_charset);
-                 }
+                 return cvt->convert(begin, end);
+ #endif
+ #endif
++            // ensures we get a sensible warning in boost's gettext results about a real mismatch.
++            if (to_charset && from_charset && !strcmp(to_charset, from_charset))
++                return std::string(begin, end - begin);
+             throw invalid_charset_error(std::string(to_charset) + " or " + from_charset);
+         }
  
diff --git a/external/boost/boost.fallback.encoding.patch b/external/boost/boost.fallback.encoding.patch
index abc0cf9253cc..3ad39c47b638 100644
--- a/external/boost/boost.fallback.encoding.patch
+++ b/external/boost/boost.fallback.encoding.patch
@@ -5,9 +5,9 @@
          country.clear();
          variant.clear();
 -        encoding = "us-ascii";
--        utf8=false;
+-        utf8 = false;
 +        encoding = "UTF-8";
-+        utf8=true;
++        utf8 = true;
          parse_from_lang(locale_name);
      }
  
diff --git a/external/boost/boost.noiconv.patch b/external/boost/boost.noiconv.patch
index 71a9e3d0961c..02f206375a4a 100644
--- a/external/boost/boost.noiconv.patch
+++ b/external/boost/boost.noiconv.patch
@@ -2,50 +2,50 @@ diff -ru boost.orig/boost/libs/locale/src/encoding/codepage.cpp boost/boost/libs
 --- foo/misc/boost.orig/libs/locale/src/encoding/codepage.cpp
 +++ foo/misc/boost/libs/locale/src/boost/locale/encoding/codepage.cpp
 @@ -39,6 +39,7 @@
-                                             char const *from_charset,
-                                             method_type how)
-                 {
-+                    #if defined(BOOST_LOCALE_WITH_ICONV) || defined(BOOST_LOCALE_WITH_ICU) || defined(BOOST_LOCALE_WITH_WCONV)
-                     hold_ptr<converter_between> cvt;
-                     #ifdef BOOST_LOCALE_WITH_ICONV
-                     cvt.reset(new iconv_between());
+                                     const char* from_charset,
+                                     method_type how)
+         {
++#if defined(BOOST_LOCALE_WITH_ICONV) || defined(BOOST_LOCALE_WITH_ICU) || defined(BOOST_LOCALE_WITH_WCONV)
+             hold_ptr<converter_between> cvt;
+ #ifdef BOOST_LOCALE_WITH_ICONV
+             cvt.reset(new iconv_between());
 @@ -55,6 +56,7 @@
-                     if(cvt->open(to_charset,from_charset,how))
-                         return cvt->convert(begin,end);
-                     #endif
-+                    #endif
-                     throw invalid_charset_error(std::string(to_charset) + " or " + from_charset);
-                 }
+             if(cvt->open(to_charset, from_charset, how))
+                 return cvt->convert(begin, end);
+ #endif
++#endif
+             throw invalid_charset_error(std::string(to_charset) + " or " + from_charset);
+         }
  
 @@ -65,6 +67,7 @@
-                                         char const *charset,
-                                         method_type how)
-                 {
-+                    #if defined(BOOST_LOCALE_WITH_ICONV) || defined(BOOST_LOCALE_WITH_ICU) || defined(BOOST_LOCALE_WITH_WCONV)
-                     hold_ptr<converter_to_utf<CharType> > cvt;
-                     #ifdef BOOST_LOCALE_WITH_ICONV
-                     cvt.reset(new iconv_to_utf<CharType>());
+         template<typename CharType>
+         std::basic_string<CharType> convert_to(const char* begin, const char* end, const char* charset, method_type how)
+         {
++#if defined(BOOST_LOCALE_WITH_ICONV) || defined(BOOST_LOCALE_WITH_ICU) || defined(BOOST_LOCALE_WITH_WCONV)
+             hold_ptr<converter_to_utf<CharType>> cvt;
+ #ifdef BOOST_LOCALE_WITH_ICONV
+             cvt.reset(new iconv_to_utf<CharType>());
 @@ -81,6 +84,7 @@
-                     if(cvt->open(charset,how))
-                         return cvt->convert(begin,end);
-                     #endif
-+                    #endif
-                     throw invalid_charset_error(charset);
-                 }
+             if(cvt->open(charset, how))
+                 return cvt->convert(begin, end);
+ #endif
++#endif
+             throw invalid_charset_error(charset);
+         }
  
 @@ -91,6 +95,7 @@
-                                         char const *charset,
-                                         method_type how)
-                 {
-+                    #if defined(BOOST_LOCALE_WITH_ICONV) || defined(BOOST_LOCALE_WITH_ICU) || defined(BOOST_LOCALE_WITH_WCONV)
-                     hold_ptr<converter_from_utf<CharType> > cvt;
-                     #ifdef BOOST_LOCALE_WITH_ICONV
-                     cvt.reset(new iconv_from_utf<CharType>());
+         template<typename CharType>
+         std::string convert_from(const CharType* begin, const CharType* end, const char* charset, method_type how)
+         {
++#if defined(BOOST_LOCALE_WITH_ICONV) || defined(BOOST_LOCALE_WITH_ICU) || defined(BOOST_LOCALE_WITH_WCONV)
+             hold_ptr<converter_from_utf<CharType>> cvt;
+ #ifdef BOOST_LOCALE_WITH_ICONV
+             cvt.reset(new iconv_from_utf<CharType>());
 @@ -107,6 +112,7 @@
-                     if(cvt->open(charset,how))
-                         return cvt->convert(begin,end);
-                     #endif
-+                    #endif
-                     throw invalid_charset_error(charset);
-                 }
+             if(cvt->open(charset, how))
+                 return cvt->convert(begin, end);
+ #endif
++#endif
+             throw invalid_charset_error(charset);
+         }
  
diff --git a/external/boost/libc++.patch.0 b/external/boost/libc++.patch.0
deleted file mode 100644
index f912e6cdb6c7..000000000000
--- a/external/boost/libc++.patch.0
+++ /dev/null
@@ -1,12 +0,0 @@
---- boost/config/stdlib/libcpp.hpp
-+++ boost/config/stdlib/libcpp.hpp
-@@ -167,5 +167,9 @@
- #if !defined(BOOST_NO_CXX14_HDR_SHARED_MUTEX) && (_LIBCPP_VERSION < 5000)
- #  define BOOST_NO_CXX14_HDR_SHARED_MUTEX
- #endif
-+
-+#if __cplusplus >= 201103
-+#  define BOOST_NO_CXX98_FUNCTION_BASE
-+#endif
- 
- //  --- end ---
diff --git a/external/boost/windows-no-utf8-locales.patch.0 b/external/boost/windows-no-utf8-locales.patch.0
deleted file mode 100644
index a6b9467d6a32..000000000000
--- a/external/boost/windows-no-utf8-locales.patch.0
+++ /dev/null
@@ -1,20 +0,0 @@
-Don't ever attempt to initialise a std::locale with a UTF-8 locale on Windows -*- Mode: Diff -*-
-
---- libs/locale/src/boost/locale/std/std_backend.cpp
-+++ libs/locale/src/boost/locale/std/std_backend.cpp
-@@ -109,12 +109,13 @@
-                 #endif
-             }
-             else {
-+                #if !defined(BOOST_WINDOWS)
-                 if(loadable(lid)) {
-                     name_ = lid;
-                     utf_mode_ = utf8_native_with_wide;
-                 }
--                #if defined(BOOST_WINDOWS)
--                else if(loadable(win_name)) {
-+                #else
-+                if(loadable(win_name)) {
-                     name_ = win_name;
-                     utf_mode_ = utf8_from_wide;
-                 }