Antalya 26.6: Bump to 26.6.4

.gitmodules

@@ -36,7 +36,7 @@
 	url = https://github.com/ClickHouse/jemalloc
 [submodule "contrib/google-protobuf"]
 	path = contrib/google-protobuf
-	url = https://github.com/ClickHouse/google-protobuf.git
+	url = https://github.com/protocolbuffers/protobuf.git
 [submodule "contrib/boost"]
 	path = contrib/boost
 	url = https://github.com/ClickHouse/boost
@@ -401,4 +401,4 @@
 	url = https://github.com/ClickHouse/silk.git
 [submodule "contrib/xsimd"]
 	path = contrib/xsimd
-	url = https://github.com/xtensor-stack/xsimd
+	url = https://github.com/ClickHouse/xsimd

base/poco/XML/CMakeLists.txt

@@ -13,6 +13,7 @@ target_compile_options (_poco_xml_expat
         -Wno-extra-semi-stmt
         -Wno-implicit-fallthrough
         -Wno-reserved-identifier
+        -Wno-unreachable-code-fallthrough
         -Wno-unused-macros
         -Wno-implicit-int-conversion
 )
@@ -47,6 +48,7 @@ target_compile_options (_poco_xml
         -Wno-tautological-unsigned-zero-compare
         -Wno-unreachable-code
         -Wno-unreachable-code-break
+        -Wno-unreachable-code-fallthrough
         -Wno-unused-macros
         -Wno-unused-parameter
         -Wno-zero-as-null-pointer-constant

base/poco/XML/include/Poco/XML/expat.h

@@ -1094,7 +1094,7 @@ XML_SetReparseDeferralEnabled(XML_Parser parser, XML_Bool enabled);
 */
 #  define XML_MAJOR_VERSION 2
 #  define XML_MINOR_VERSION 8
-#  define XML_MICRO_VERSION 1
+#  define XML_MICRO_VERSION 2
 
 #  ifdef __cplusplus
 }

base/poco/XML/src/fallthrough.h

@@ -0,0 +1,49 @@
+/*
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 2026 Nick Begg <nick@stunttruck.net>
+   Licensed under the MIT license:
+
+   Permission is hereby granted, free of charge, to any person obtaining
+   a copy of this software  and associated documentation files (the
+   "Software"), to deal in the Software without restriction, including
+   without limitation the rights to use, copy, modify, merge, publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons to whom  the Software is furnished to do so, subject to the
+   following conditions:
+
+   The above copyright notice and this permission notice shall be included
+   in all copies or substantial portions of the Software.
+
+   THE SOFTWARE IS PROVIDED "AS  IS", WITHOUT WARRANTY OF ANY KIND,
+   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#ifndef FALLTHROUGH_H
+#  define FALLTHROUGH_H 1
+
+// Explicit fallthrough in switch case to avoid warnings
+// with compiler flag -Wimplicit-fallthrough.
+
+#  define EXPAT_FALLTHROUGH                                                    \
+    do {                                                                       \
+    } while (0)
+
+#  if defined(__has_attribute)
+#    if __has_attribute(fallthrough)
+#      undef EXPAT_FALLTHROUGH
+#      define EXPAT_FALLTHROUGH __attribute__((fallthrough))
+#    endif
+#  endif
+
+#endif // FALLTHROUGH_H

base/poco/XML/src/siphash.h

@@ -101,6 +101,8 @@
 #include <stddef.h> /* size_t */
 #include <stdint.h> /* uint64_t uint32_t uint8_t */
 
+#include "fallthrough.h"
+
 /*
  * Workaround to not require a C++11 compiler for using ULL suffix
  * if this code is included and compiled as C++; related GCC warning is:
@@ -240,25 +242,25 @@ static uint64_t sip24_final(struct siphash * H)
     {
         case 7:
             b |= (uint64_t)H->buf[6] << 48;
-            /* fall through */
+            EXPAT_FALLTHROUGH;
         case 6:
             b |= (uint64_t)H->buf[5] << 40;
-            /* fall through */
+            EXPAT_FALLTHROUGH;
         case 5:
             b |= (uint64_t)H->buf[4] << 32;
-            /* fall through */
+            EXPAT_FALLTHROUGH;
         case 4:
             b |= (uint64_t)H->buf[3] << 24;
-            /* fall through */
+            EXPAT_FALLTHROUGH;
         case 3:
             b |= (uint64_t)H->buf[2] << 16;
-            /* fall through */
+            EXPAT_FALLTHROUGH;
         case 2:
             b |= (uint64_t)H->buf[1] << 8;
-            /* fall through */
+            EXPAT_FALLTHROUGH;
         case 1:
             b |= (uint64_t)H->buf[0] << 0;
-            /* fall through */
+            EXPAT_FALLTHROUGH;
         case 0:
             break;
     }

base/poco/XML/src/xcsinc.c

@@ -0,0 +1,48 @@
+/* This file is included from other .c files!
+                            __  __            _
+                         ___\ \/ /_ __   __ _| |_
+                        / _ \\  /| '_ \ / _` | __|
+                       |  __//  \| |_) | (_| | |_
+                        \___/_/\_\ .__/ \__,_|\__|
+                                 |_| XML parser
+
+   Copyright (c) 2022 Sebastian Pipping <sebastian@pipping.org>
+   Licensed under the MIT license:
+
+   Permission is  hereby granted,  free of charge,  to any  person obtaining
+   a  copy  of  this  software   and  associated  documentation  files  (the
+   "Software"),  to  deal in  the  Software  without restriction,  including
+   without  limitation the  rights  to use,  copy,  modify, merge,  publish,
+   distribute, sublicense, and/or sell copies of the Software, and to permit
+   persons  to whom  the Software  is  furnished to  do so,  subject to  the
+   following conditions:
+
+   The above copyright  notice and this permission notice  shall be included
+   in all copies or substantial portions of the Software.
+
+   THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
+   EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+   NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+   DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
+   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+   USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+static size_t
+xcslen(const XML_Char *s) {
+#ifdef XML_UNICODE
+#  ifdef XML_UNICODE_WCHAR_T
+  return wcslen(s);
+#  else
+  // XML_Char is unsigned short
+  size_t len = 0;
+  while (s[len]) {
+    len++;
+  }
+  return len;
+#  endif
+#else
+  return strlen(s);
+#endif
+}