Pre-5.1.0 versions of GCC do not support these particular type traits
(see https://github.com/google/protobuf/issues/417).

We no longer need this, now that we have finished the switch to C++11
and are using std::unique_ptr.

Revert "Removed mention of Buffer in byteSourceToUint8Array"

Ruby: Fix scope resolution for MessageExts

Output *_pb2_grpc.py files when use_grpc_plugin=True

Replace ancient m4/acx_pthread.m4 with m4/ax_pthread.m4

Start outputting missing *_pb2_grpc.py files when  use_grpc_plugin is set to True for py_proto_library.

This reverts commit f00e06c9.

Although Node Buffers are not covered by the tests, it seems that there
are users relying on them, so we need to add back in support for them.

This fixes issue #4359.

Revert "Move `compiler/plugin.pb.cc` to libprotobuf with the other WKT sources."

Replace //:protoc and similar default macro arguments with

@com_google_protobuf prefixed versions. This allows them to work in 3rd party
repositories.

Fix a bad visibility rule. :hidden does not exist, but :private does.

PHP: fixed typo in message.c

This reverts commit 724f0be3.

Add support for libc++ on Windows.

`update_file_lists.sh` depends on Bash features, thus needs Bash sebang.

Blacklist all WELL_KNOWN_PROTOS from Bazel C++ code generation.

Adds an option in C++ JSON parser to ignore unrecognized enum values

Merge 3.5.x to master

This prevents the Bazel `CcProtoAspect` from generating and linking
C++ object code for these files. Without this blacklist, symbols for
protobuf types depended on by `libprotobuf` may be defined multiple
times and violate the ODR rule.

Fixes https://github.com/google/protobuf/issues/4311

This lets all values of `WELL_KNOWN_PROTOS` be treated the same with
regard to Bazel's protobuf blacklisting.

I noticed that running this script as `./update_file_lists.sh` on MacOS
was corrupting `cmake/extract_includes.bat.in`. Forcing the shell to
Bash fixes the generated file output.

 Added instruction for existing ZLIB configuration

Added instruction for existing ZLIB configuration

Using two configuration flags `DZLIB_INCLUDE_DIR` and `DZLIB_LIB` we can locate an existing ZLIB on the system

Rename a shadowed variable.

Shadowed variables can cause readability issues. Ensure a shadowed
variable isn't used in header files which may be used in a dependent
project that explicitly disables them.

Remove unused output_file variable from js_embed

unrecognized string values in enum fields as default ones.

* Cython's stack does not have .py file name. Only check filenames when end with .py for _CalledFromGeneratedFile()