system. The Ruby module build now uses an amalgamated distribution of
upb, and successfully builds a Ruby gem called 'google-protobuf' with
module 'google/protobuf'.

Source code refactoring. Extracted common functionality in cpp_helpers.c...

Returned print_indent and print_outdent back to printservicestub and printserviceclass in python generator

Make C++ code generation of string oneof field compatible with C++11

Conflicts:
	configure.ac

Source code refactoring. Extracted common functionality in cpp_helpers.cc and python/python_generator.cc

Provide a Ruby extension.

This adds a Ruby extension in ruby/ that is based on the 'upb' library
(now included as a submodule), and adds support for Ruby code generation
to the protoc compiler.

Ignore artifacts from autogen.sh

language.

tests with macro PROTOBUF_HAS_DEATH_TEST.

string oneof field was generated into "const ArenaStringPtr" field inside
"default_oneof_instance_" struct (of name "<class name>OneofInstance").

On the other hand, in C++11, const field of type with trivial default
constructor causes enclosing type's implicit default constructor to be deleted.

Since ArenaStringPtr has tirvial default constructor, this caused default
constructor of "default_oneof_instance_" struct to be deleted, making the
constructor call inside generated code invalid and fail to compile.

Preprocessor token right after string literal without whitespace results
in parse failure in C++11.

TestUtil which transitively depend on the full runtime).

Get rid of some build warnings.

Add a ./configure flag "DIST_LANG".

Replace links in nano proto code.

Fix Python C++ implementation build issues