Fix Xcode 16.3 build (#9422)

* Fix build with Xcode 16.3

* Simplify OpenVDB patch, from 930c3acb8e (diff-bc3061cc2fe6c64a3d67c8350330bb3a530d01037faace6da27ad9a12aa03e29)

* Fix CGAL header under clang 19
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281880

* Fix compile error due to removal of base template for `std::char_traits` in clang 19
https://releases.llvm.org/19.1.0/projects/libcxx/docs/ReleaseNotes.html#deprecations-and-removals

deps/PNG/PNG.cmake

@@ -12,7 +12,7 @@ if(APPLE AND IS_CROSS_COMPILE)
         GIT_TAG v1.6.35
         DEPENDS ${ZLIB_PKG}
         PATCH_COMMAND       ${GIT_EXECUTABLE} checkout -f -- . && git clean -df &&
-                            ${GIT_EXECUTABLE} apply --whitespace=fix ${CMAKE_CURRENT_LIST_DIR}/macos-arm64.patch
+                            ${GIT_EXECUTABLE} apply --whitespace=fix ${CMAKE_CURRENT_LIST_DIR}/macos-arm64.patch ${CMAKE_CURRENT_LIST_DIR}/0002-clang19-macos.patch
         CMAKE_ARGS
             -DPNG_SHARED=OFF
             -DPNG_STATIC=ON
@@ -24,7 +24,7 @@ if(APPLE AND IS_CROSS_COMPILE)
 else ()
 set(_patch_step "")
     if (APPLE)
-        set(_patch_step PATCH_COMMAND ${PATCH_CMD} ${CMAKE_CURRENT_LIST_DIR}/PNG.patch)
+        set(_patch_step PATCH_COMMAND ${PATCH_CMD} ${CMAKE_CURRENT_LIST_DIR}/PNG.patch ${CMAKE_CURRENT_LIST_DIR}/0002-clang19-macos.patch)
     endif ()
     orcaslicer_add_cmake_project(PNG 
         # GIT_REPOSITORY https://github.com/glennrp/libpng.git