valeriy42 · Oct 16, 2026 · Oct 16, 2026 · Oct 16, 2026 · Oct 16, 2026 · Oct 16, 2026
diff --git a/3rd_party/3rd_party.cmake b/3rd_party/3rd_party.cmake
@@ -57,7 +57,6 @@ if ("${HOST_SYSTEM_NAME}" STREQUAL "darwin")
   endif()
   set(BOOST_EXTENSION "mt-${BOOST_ARCH}-1_86.dylib")
   set(BOOST_LIBRARIES "atomic" "chrono" "date_time" "filesystem" "iostreams" "log" "log_setup" "program_options" "regex" "system" "thread" "unit_test_framework")
-  set(XML_LOCATION)
   set(GCC_RT_LOCATION)
   set(STL_LOCATION)
   set(OMP_LOCATION)
@@ -81,8 +80,6 @@ elseif ("${HOST_SYSTEM_NAME}" STREQUAL "linux")
     endif()
     set(BOOST_EXTENSION mt-${BOOST_ARCH}-1_86.so.1.86.0)
     set(BOOST_LIBRARIES "atomic" "chrono" "date_time" "filesystem" "iostreams" "log" "log_setup" "program_options" "regex" "system" "thread" "unit_test_framework")
-    set(XML_LOCATION "/usr/local/gcc133/lib")
-    set(XML_EXTENSION ".so.2")
     set(GCC_RT_LOCATION "/usr/local/gcc133/lib64")
     set(GCC_RT_EXTENSION ".so.1")
     set(STL_LOCATION "/usr/local/gcc133/lib64")
@@ -102,7 +99,6 @@ elseif ("${HOST_SYSTEM_NAME}" STREQUAL "linux")
     set(BOOST_COMPILER "clang-darwin${CMAKE_CXX_COMPILER_VERSION_MAJOR}")
     set(BOOST_EXTENSION "mt-x64-1_86.dylib")
     set(BOOST_LIBRARIES "atomic" "chrono" "date_time" "filesystem" "iostreams" "log" "log_setup" "program_options" "regex" "system" "thread" "unit_test_framework")
-    set(XML_LOCATION)
     set(GCC_RT_LOCATION)
     set(STL_LOCATION)
     set(OMP_LOCATION)
@@ -123,8 +119,6 @@ else()
   set(BOOST_COMPILER "vc")
   set(BOOST_EXTENSION "mt-x64-1_86.dll")
   set(BOOST_LIBRARIES "atomic" "chrono" "date_time" "filesystem" "iostreams" "log" "log_setup" "program_options" "regex" "system" "thread" "unit_test_framework")
-  set(XML_LOCATION "${LOCAL_DRIVE}/usr/local/bin")
-  set(XML_EXTENSION ".dll")
   set(GCC_RT_LOCATION)
   # Read VCBASE from environment if defined, otherwise default to VS Professional 2019
   message(STATUS "3rd_party: \$ENV{VCBASE} $ENV{VCBASE}")
@@ -231,7 +225,6 @@ endfunction()
 file(MAKE_DIRECTORY "${INSTALL_DIR}")
 
 install_libs("Boost" ${BOOST_LOCATION} "boost*" "${BOOST_COMPILER}*${BOOST_EXTENSION}" ${BOOST_LIBRARIES})
-install_libs("libxml2" ${XML_LOCATION} "" "${XML_EXTENSION}" "libxml2")
 install_libs("gcc runtime library" ${GCC_RT_LOCATION} "" "${GCC_RT_EXTENSION}" "libgcc_s")
 install_libs("C++ standard library" ${STL_LOCATION} "" "${STL_EXTENSION}" "${STL_PATTERN}")
 install_libs("OMP runtime library" ${OMP_LOCATION} "" "${OMP_EXTENSION}" "${OMP_PATTERN}")

diff --git a/3rd_party/licenses/libxml2-INFO.csv b/3rd_party/licenses/libxml2-INFO.csv
diff --git a/3rd_party/licenses/libxml2-LICENSE.txt b/3rd_party/licenses/libxml2-LICENSE.txt
diff --git a/3rd_party/licenses/libxml2-NOTICE.txt b/3rd_party/licenses/libxml2-NOTICE.txt
diff --git a/AGENTS.md b/AGENTS.md
@@ -4,7 +4,7 @@
 - **Language**: C++20 (`CMAKE_CXX_STANDARD 20`).
 - **Build system**: CMake (primary) or Gradle wrapper (`./gradlew`).
 - **Compilers**: GCC 13.3.0 on Linux (built from source, installed to `/usr/local/gcc133/`), Xcode Clang on macOS (Xcode 15.2+ for Ventura/Sonoma), Visual Studio 2022 Professional (MSVC) on Windows.
-- **Key dependencies**: Boost 1.86.0 (dynamic linking, includes Boost.Json for JSON handling), PyTorch 2.7.1 (libtorch), libxml2.
+- **Key dependencies**: Boost 1.86.0 (dynamic linking, includes Boost.Json for JSON handling), PyTorch 2.7.1 (libtorch).
 - **Header-only libraries**: Eigen and valijson are header-only and managed by the `3rd_party/` CMake system (pulled automatically during configuration).
 - **Platforms**: Linux x86_64/aarch64, macOS aarch64, Windows x86_64.
 - **Toolchain files**: Auto-selected from `cmake/<os>-<arch>.cmake` or set via `CMAKE_TOOLCHAIN_FILE`.

diff --git a/bin/controller/unittest/CMakeLists.txt b/bin/controller/unittest/CMakeLists.txt
@@ -21,7 +21,6 @@ set (SRCS
 
 set(ML_LINK_LIBRARIES
   ${Boost_LIBRARIES_WITH_UNIT_TEST}
-  ${LIBXML2_LIBRARIES}
   MlCore
   MlProcessSpawnerRouter
   MlSandbox

diff --git a/bin/pytorch_inference/unittest/CMakeLists.txt b/bin/pytorch_inference/unittest/CMakeLists.txt
@@ -21,7 +21,6 @@ set (SRCS
 
 set(ML_LINK_LIBRARIES
   ${Boost_LIBRARIES_WITH_UNIT_TEST}
-  ${LIBXML2_LIBRARIES}
   MlCore
   MlMathsCommon
   MlMathsAnalytics

diff --git a/cmake/variables.cmake b/cmake/variables.cmake
@@ -107,12 +107,6 @@ else()
   set(C10_LIB   "${ML_BASE_PATH}/lib/libc10${ML_LIBEXT}")
 endif()
 
-if (CMAKE_SYSTEM_NAME STREQUAL "Darwin")
-  set(LIBXML2_LIBRARIES "-lxml2")
-else()
-  set(LIBXML2_LIBRARIES "${ML_BASE_PATH}/lib/libxml2${ML_LIBEXT}")
-endif()
-
 if (CMAKE_SYSTEM_NAME STREQUAL "Windows")
   set(ZLIB_LIBRARIES "${ML_BASE_PATH}/lib/zlib${ML_LIBEXT}")
 else()
@@ -128,9 +122,7 @@ if (CMAKE_SYSTEM_NAME STREQUAL "Darwin")
   if (CMAKE_CROSSCOMPILING)
     list(APPEND ML_SYSTEM_INCLUDE_DIRECTORIES ${SYSROOT}/usr/include/c++/v1)
   endif()
-  list(APPEND ML_SYSTEM_INCLUDE_DIRECTORIES ${SYSROOT}/usr/include ${SYSROOT}/usr/include/libxml2 ${SYSROOT}/usr/local/include)
-else ()
-  list(APPEND ML_SYSTEM_INCLUDE_DIRECTORIES ${ML_BASE_PATH}/include/libxml2)
+  list(APPEND ML_SYSTEM_INCLUDE_DIRECTORIES ${SYSROOT}/usr/include ${SYSROOT}/usr/local/include)
 endif()
 
 list(APPEND ML_SYSTEM_INCLUDE_DIRECTORIES

diff --git a/lib/api/unittest/CMakeLists.txt b/lib/api/unittest/CMakeLists.txt
@@ -61,7 +61,6 @@ set (SRCS
 
 set(ML_LINK_LIBRARIES
   ${Boost_LIBRARIES_WITH_UNIT_TEST}
-  ${LIBXML2_LIBRARIES}
   MlCore
   MlMathsCommon
   MlMathsAnalytics

diff --git a/lib/core/CMakeLists.txt b/lib/core/CMakeLists.txt
@@ -13,9 +13,14 @@ project("ML Core")
 
 set(ML_LINK_LIBRARIES
   ${ZLIB_LIBRARIES}
-  ${LIBXML2_LIBRARIES}
   ${Boost_LIBRARIES})
 
+if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
+  # CCrashHandler_Linux.cc calls dladdr(), which lives in libdl on the glibc
+  # versions we build against. This used to be satisfied transitively by libxml2.
+  list(APPEND ML_LINK_LIBRARIES ${CMAKE_DL_LIBS})
+endif()
+
 ml_add_library(MlCore SHARED
   CBase64Filter.cc
   CBlockingCallCancellerThread.cc

diff --git a/lib/core/unittest/CMakeLists.txt b/lib/core/unittest/CMakeLists.txt
@@ -82,7 +82,6 @@ set (SRCS
 
 set(ML_LINK_LIBRARIES
   ${Boost_LIBRARIES_WITH_UNIT_TEST}
-  ${LIBXML2_LIBRARIES}
   MlCore
   MlMathsCommon
   MlTest

diff --git a/lib/maths/analytics/unittest/CMakeLists.txt b/lib/maths/analytics/unittest/CMakeLists.txt
@@ -28,7 +28,6 @@ set (SRCS
 
 set(ML_LINK_LIBRARIES
   ${Boost_LIBRARIES_WITH_UNIT_TEST}
-  ${LIBXML2_LIBRARIES}
   MlCore
   MlMathsCommon
   MlMathsAnalytics

diff --git a/lib/model/unittest/CMakeLists.txt b/lib/model/unittest/CMakeLists.txt
@@ -62,7 +62,6 @@ set (SRCS
 
 set(ML_LINK_LIBRARIES
   ${Boost_LIBRARIES_WITH_UNIT_TEST}
-  ${LIBXML2_LIBRARIES}
   MlCore
   MlMathsCommon
   MlMathsTimeSeries

diff --git a/lib/seccomp/unittest/CMakeLists.txt b/lib/seccomp/unittest/CMakeLists.txt
@@ -20,7 +20,6 @@ set (SRCS
 
 set(ML_LINK_LIBRARIES
   ${Boost_LIBRARIES_WITH_UNIT_TEST}
-  ${LIBXML2_LIBRARIES}
   MlCore
   MlSeccomp
   MlTest

diff --git a/lib/ver/unittest/CMakeLists.txt b/lib/ver/unittest/CMakeLists.txt
@@ -18,7 +18,6 @@ set (SRCS
 
 set(ML_LINK_LIBRARIES
   ${Boost_LIBRARIES_WITH_UNIT_TEST}
-  ${LIBXML2_LIBRARIES}
   MlCore
   MlVer
   MlTest
-Original file line number
+Diff line change
@@ Expand Up / @@ -18,7 +18,6 @@ set (SRCS @@
     set(ML_LINK_LIBRARIES
       ${Boost_LIBRARIES_WITH_UNIT_TEST}
-      ${LIBXML2_LIBRARIES}
       MlCore
       MlVer
       MlTest
@@ Expand Down @@