Bug #119246 9.5.0 compilation error with LLVM 21

• Submitted: 27 Oct 15:02
• Reporter: Laurynas Biveinis (OCA)
• Status: Open
• Category: MySQL Server: Compiling
• Severity: S3 (Non-critical)
• Version: 9.5.0
• OS: MacOS (26.0.1)
• CPU Architecture: ARM

[27 Oct 15:02] Laurynas Biveinis

Description:
CMake options: -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DFORCE_UNSUPPORTED_COMPILER=ON -DBUILD_CONFIG=mysql_release -DCMAKE_BUILD_TYPE=Release -DMYSQL_MAINTAINER_MODE=ON -DWITH_SYSTEM_LIBS=ON -DWITH_NDBCLUSTER_STORAGE_ENGINE=OFF -DFORCE_COLORED_OUTPUT=ON -DCMAKE_CXX_FLAGS=-g -DCMAKE_CXX_FLAGS_DEBUG=-g -DCMAKE_CXX_FLAGS_RELEASE=-O2 -DNDEBUG -g

results in 

FAILED: [code=1] sql/CMakeFiles/sql_dd.dir/dd/info_schema/show_query_builder.cc.o
/opt/homebrew/opt/llvm/bin/clang++ -DBOOST_NO_CXX98_FUNCTION_BASE -DHAVE_TLSv13 -DLZ4_DISABLE_DEPRECATE_WARNINGS -DMYSQLXMESSAGES_STATIC_DEFINE -DMYSQL_SERVER -DRAPIDJSON_HAS_STDSTRING=1 -DRAPIDJSON_NO_SIZETYPEDEFINE -DRAPIDJSON_SCHEMA_USE_INTERNALREGEX=0 -DRAPIDJSON_SCHEMA_USE_STDREGEX=1 -D_USE_MATH_DEFINES -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/Users/laurynas/vilniusdb/mysql-9.5.0/_build-release-llvm -I/Users/laurynas/vilniusdb/mysql-9.5.0/_build-release-llvm/include -I/Users/laurynas/vilniusdb/mysql-9.5.0 -I/Users/laurynas/vilniusdb/mysql-9.5.0/include -I/Users/laurynas/vilniusdb/mysql-9.5.0/libs -I/Users/laurynas/vilniusdb/mysql-9.5.0/router/src/harness/include -isystem /Users/laurynas/vilniusdb/mysql-9.5.0/extra/rapidjson/include -isystem /opt/homebrew/opt/openssl/include -isystem /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/editline -isystem /opt/homebrew/include -isystem /opt/homebrew/opt/icu4c/include -isystem /Users/laurynas/vilniusdb/mysql-9.5.0/extra/unordered_dense/unordered_dense-4.4.0/include -isystem /Users/laurynas/vilniusdb/mysql-9.5.0/extra/zlib/zlib-1.3.1 -isystem /Users/laurynas/vilniusdb/mysql-9.5.0/_build-release-llvm/extra/zlib/zlib-1.3.1 -isystem /Users/laurynas/vilniusdb/mysql-9.5.0/plugin/x/client -isystem /Users/laurynas/vilniusdb/mysql-9.5.0/_build-release-llvm/plugin/x/generated/protobuf_lite -isystem /Users/laurynas/vilniusdb/mysql-9.5.0/_build-release-llvm/plugin/x/generated -isystem /Users/laurynas/vilniusdb/mysql-9.5.0/extra/boost/boost_1_87_0 -std=c++20 -fno-omit-frame-pointer -ftls-model=initial-exec -g -Wall -Wextra -Wformat-security -Wvla -Wundef -Wmissing-format-attribute -Woverloaded-virtual -Wcast-qual -Wno-null-conversion -Wno-unused-private-field -Wconditional-uninitialized -Wdeprecated -Wno-deprecated-declarations -Wno-shorten-64-to-32 -Wextra-semi -Wheader-hygiene -Wnon-virtual-dtor -Wundefined-reinterpret-cast -Wrange-loop-analysis -Winconsistent-missing-destructor-override -Winconsistent-missing-override -Wshadow-field -Wstring-concatenation -Wdocumentation -Wno-documentation-deprecated-sync -Werror -ffunction-sections -fdata-sections -O2 -DNDEBUG -g -std=gnu++20 -arch arm64 -fPIC -fcolor-diagnostics -Wshadow-uncaptured-local -MD -MT sql/CMakeFiles/sql_dd.dir/dd/info_schema/show_query_builder.cc.o -MF sql/CMakeFiles/sql_dd.dir/dd/info_schema/show_query_builder.cc.o.d  --language=c++  -o sql/CMakeFiles/sql_dd.dir/dd/info_schema/show_query_builder.cc.o -c /Users/laurynas/vilniusdb/mysql-9.5.0/sql/dd/info_schema/show_query_builder.cc
In file included from /Users/laurynas/vilniusdb/mysql-9.5.0/sql/dd/info_schema/show_query_builder.cc:37:
In file included from /Users/laurynas/vilniusdb/mysql-9.5.0/sql/parse_tree_nodes.h:50:
In file included from /Users/laurynas/vilniusdb/mysql-9.5.0/sql/opt_explain.h:61:
/Users/laurynas/vilniusdb/mysql-9.5.0/sql/opt_explain_format.h:646:12: error: null passed to a callee that requires a non-null argument [-Werror,-Wnonnull]
  646 |     return nullptr;
      |            ^~~~~~~

How to repeat:
See above