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These instructions only cover building grpc C and C++ libraries under
typical unix systems. If you need more information, please try grpc's
wiki pages:
https://github.com/google/grpc/wiki
*************************
* If you are in a hurry *
*************************
A typical unix installation won't require any more steps than running:
$ make
# make install
You don't need anything else than GNU Make and gcc. Under a Debian or
Ubuntu system, this should boil down to the following package:
# apt-get install build-essential python-all-dev python-virtualenv
*******************************
* More detailled instructions *
*******************************
Setting up dependencies
=======================
Dependencies to compile the libraries
-------------------------------------
grpc libraries have few external dependencies. If you need to compile and
install them, they are present in the third_party directory if you have
cloned the github repository recursively. If you didn't clone recursively,
you can still get them later by running the following command:
$ git submodule update --init
Note that the Makefile makes it much easier for you to compile from sources
if you were to clone recursively our git repository: it will automatically
compile zlib and OpenSSL, which are core requirements for grpc. Note this
creates grpc libraries that will have zlib and OpenSSL built-in inside of them,
which significantly increases the libraries' size.
In order to decrease that size, you can manually install zlib and OpenSSL on
your system, so that the Makefile can use them instead.
Under a Debian or Ubuntu system, one can acquire the development package
for zlib this way:
# apt-get install zlib1g-dev
To the best of our knowledge, no distribution has an OpenSSL package that
supports ALPN yet, so you would still have to depend on installing from source
for that particular dependency if you want to reduce the libraries' size.
The recommended version of OpenSSL that provides ALPN support is available
at this URL:
https://www.openssl.org/source/openssl-1.0.2.tar.gz
Dependencies to compile and run the tests
-----------------------------------------
Compiling and running grpc plain-C tests dont't require any more dependency.
Compiling and running grpc C++ tests depend on protobuf 3.0.0, gtest and
gflags. Although gflags and protobuf are provided in third_party, you will
need to manually install these dependencies on your system to run these tests.
Under a Debian or Ubuntu system, you can install the gtests and gflags packages
using apt-get:
# apt-get install libgflags-dev libgtest-dev
However, protobuf 3.0.0 isn't in a debian package yet: you'll need to compile
and install it from the sources in the third_party. Note that if you already
have the protobuf and protoc packages installed on your system, they will most
likely interfere, and you'll need to uninstall them first.
Compiling and installing protobuf 3.0.0 requires a few more dependencies in
itself, notably the autoconf suite, curl, and unzip. If you have apt-get, you
can install these dependencies this way:
# apt-get install unzip curl autoconf libtool
Then, you can build and install protobuf 3.0.0:
$ cd third_party/protobuf
$ ./autogen.sh
$ ./configure
$ make
# make install
# ldconfig
A word on OpenSSL
-----------------
Secure HTTP2 requires to have the TLS extension ALPN (see rfc 7301 and
http://http2.github.io/http2-spec/ section 3.3). Our HTTP2 implementation
relies on OpenSSL's implementation. OpenSSL 1.0.2 is the first released version
of OpenSSL that has ALPN support, and this explains our dependency on it.
Note that the Makefile supports compiling only the unsecure elements of grpc,
and if you do not have OpenSSL and do not want it, you can still proceed
with installing only the elements you require. However, it is recommended
to encrypt your network traffic, therefore we urge you to not use the unsecure
version of grpc if possible.
Compiling
=========
If you have all the dependencies mentioned above, you should simply be able
to go ahead and run "make" to compile grpc's C and C++ libraries:
$ make
Testing
=======
To build and run the tests, you can run the command:
$ make test
If you want to be able to run them in parallel, and get better output, you can
also use the python tool we have written:
$ ./tools/run_tests/run_tests.py
Installing
==========
Once everything is compiled, you should be able to install grpc C and C++
libraries and headers:
# make install
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