A number of libraries have my PR to enable Embarcadero C++ clang-based compilers for Boost in their 'develop' branch but the branch has not been merged to 'master' for the 1.75 release. In the large majority of cases my PR for Embarcadero is the only difference between 'develop' and 'master'. These libraries are: assign circular_buffer container_hash date_time foreach graph iostreams numeric_conversion optional pool ptr_container random static_assert thread typeof units unordered If any of the maintainers of these libraries could see fit to get my PR in 'master' from 'develop' for the 1.75 release, it would be appreciated. I can assert that the PR causes no problems in the 'develop' regression tests for the aforementioned libraries. I have also opened up an issue for each of the aforementioned libraries in their Github page regarding my request.