build: disable rocksdb -march=native

[egolearner]

No description provided.

[greptile-apps]

Greptile Summary

This PR adds the PORTABLE ON flag to RocksDB's CMake configuration, which disables the -march=native compiler flag. This ensures the RocksDB library is built in a portable manner that can run on different CPU architectures, rather than being optimized specifically for the build machine's architecture.

• Prevents potential runtime crashes on systems with different CPU instruction sets
• Aligns with the project's existing architecture-specific build strategy in cmake/option.cmake
• Standard practice for distributable software that needs cross-platform compatibility

Confidence Score: 5/5

• This PR is safe to merge with no risk
• Single-line build configuration change using a standard RocksDB flag that improves portability without affecting functionality
• No files require special attention

Important Files Changed

Filename	Overview
thirdparty/rocksdb/CMakeLists.txt	Adds PORTABLE ON flag to disable -march=native in RocksDB build, improving binary portability across different CPU architectures

_{Last reviewed commit: a659a6d}