fix the compile error on mac m1

[zhangm365]

Why I'm doing:

when I compile the main branch, it occurs some errors.

What I'm doing:

Please review if the fix is reasonable.

Fixes #issue

What type of PR is this:

• [x] BugFix
• [ ] Feature
• [ ] Enhancement
• [ ] Refactor
• [ ] UT
• [ ] Doc
• [ ] Tool

Does this PR entail a change in behavior?

• [x] Yes, this PR will result in a change in behavior.
• [ ] No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

• [ ] Interface/UI changes: syntax, type conversion, expression evaluation, display information
• [ ] Parameter changes: default values, similar parameters but with different default values
• [ ] Policy changes: use new policy to replace old one, functionality automatically enabled
• [ ] Feature removed
• [ ] Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

• [ ] I have added test cases for my bug fix or my new feature
• [ ] This pr needs user documentation (for new or modified features or behaviors)
  • [ ] I have added documentation for my new feature or new function
• [ ] This is a backport pr

Bugfix cherry-pick branch check:

• [ ] I have checked the version labels which the pr will be auto-backported to the target branch
  • [ ] 4.0
  • [ ] 3.5
  • [ ] 3.4
  • [ ] 3.3

---

[!NOTE] Fixes macOS ARM64 build by falling back to pre-generated thrift/protobuf sources when gensrc is missing and enforcing system binutils across third-party builds; also relaxes RawString ABI guard for libc++.

• Build (macOS)
  • Fallback to checked-in generated sources when ${GENSRC_DIR}/gen_cpp or AgentService_types.cpp is missing in be/src/gen_cpp/CMakeLists.txt and build-mac/CMakeLists.txt, with warnings and hard errors if still absent.
  • Add sentinel checks for thrift outputs and ensure generated dirs exist before proceeding.
• Third-party build script (build-mac/build_thirdparty.sh)
  • Force macOS system binutils (/usr/bin/ar, ranlib, strip) via env and cmake_toolchain_args; pass these to all CMake-based builds (gflags, glog, brpc, rocksdb, velocypack, vectorscan, simdutf, fmt, roaring, etc.).
  • Patch Boost build to use a custom clang toolset and system binutils; adjust b2 invocation accordingly.
  • Use system binutils when injecting libc++ __hash_memory shims into archives (protobuf, vectorscan, roaring).
• C++ source tweaks
  • Add be/src/gen_cpp/common/env_config.h (generated config stub).
  • Update be/src/util/raw_container.h to allow RawString optimization under libc++ by guarding only against legacy libstdc++ ABI.

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