* Install rake compiler
* Add kokoro config to build ruby gem on linux
* Rename from linix to linux
* Fix prepare_build.sh name
* Clean up
* Install bundler
* Install bundler
* Use c99 in order to build gem on mingw-32 on ruby 2.0.0
See https://github.com/rake-compiler/rake-compiler-dock/issues/4
* Move c99 config to extcofig.rb
* Add discard unknown API in ruby.
* Add test for oneof message field.
* Add TestUnknown to represent unknown field data clearly.
* Only serialize the message with unknown fields itself in test.
* Move discard_unknown from Message to Google.Protobuf
* Reserve unknown in ruby
* Revert ruby tests. Wait for cpp impl for conformance test
* Add conformance test for preserving unknown
* Add unknown field conformance test to csharp failure list.
* Fix comments
* Fix comment
* Fix comments
* Fix typo
* Use stringsink_string directly
* Mark hd unused
* Remove unused encodeunknown_handlerfunc
* Fix ruby segment fault
1) rb_ary_new cannot be called during allocate function. During allocate
fucntion, the containing object hasn't been marked and rb_ary_new may
invoke gc to collect containing object.
2) The global map should be marked before allocating it. Otherwise it
may be garbage collected.
* Add test
* Remove commented code
* Fix grammer error
We have some special code in wrap_memcpy.c to ensure that we use the
2.2.5 version of memcpy, for compatibility with older versions of glibc.
However, we need to make sure we only attempt to do this when we are
actually building with glibc, so that the code can also build
successfully against other libc implementations such as musl.