message: boost notes to README.md
diff: @@ -27,3 +27,33 @@ This is a very slow process, therefore we have these build scripts which are mea
  This script downloads the latest .so, .dlls and .dylib files from https://s3.amazonaws.com/gubatron-jlibtorrent/release/<os_build>/<os_arch>/<library>, places them inside the swig/bin/release/<os_build>/<os_arch> and then invokes the parent folder's `gradle build` command to generate all the release .jars we distribute at
  https://github.com/frostwire/frostwire-jlibtorrent/releases
  +
  +# Notes on boost building issues
  +
  +## ON BOOST ISSUES, DEC 13 2020
  +
  +### Reverting to boost 1.73.
  +To build on macOS you need to comment the following line on `${BOOST_ROOT}/tools/build/src/tools/darwin.jam`
  +`flags darwin.compile.c++ OPTIONS $(condition) : -fcoalesce-templates ;`
  +We might have to do this in Travis CI
  +
  +### 1.74 seems to require -frtti linking
  +```
  +In file included from /Users/gubatron/src/libtorrent/src/announce_entry.cpp:34:
  +In file included from /Users/gubatron/src/libtorrent/include/libtorrent/announce_entry.hpp:41:
  +In file included from /Users/gubatron/src/libtorrent/include/libtorrent/socket.hpp:53:
  +In file included from /Users/gubatron/src/boost_1_74_0/boost/asio/ip/tcp.hpp:19:
  +In file included from /Users/gubatron/src/boost_1_74_0/boost/asio/basic_socket_acceptor.hpp:19:
  +In file included from /Users/gubatron/src/boost_1_74_0/boost/asio/any_io_executor.hpp:22:
  +In file included from /Users/gubatron/src/boost_1_74_0/boost/asio/execution.hpp:19:
  +/Users/gubatron/src/boost_1_74_0/boost/asio/execution/any_executor.hpp:811:12: error: use of typeid requires -frtti
  + return typeid(void);
  +```
  +
  +### 1.75 causes swig to not generate error_code.java and other error handling classes
  +
  +With boost 1.75 swig will issue these boost related warnings, something must have changed
  +```
  +Warning 315: Nothing known about 'boost::system::generic_category'
  +Warning 315: Nothing known about 'boost::system::system_category'
  +```
  \ No newline at end of file
  