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gRPC C++ - Building from source
===========================
# Pre-requisites
## Linux
```sh
$ [sudo] apt-get install build-essential autoconf libtool pkg-config
```
If you plan to build from source and run tests, install the following as well:
```sh
$ [sudo] apt-get install libgflags-dev libgtest-dev
$ [sudo] apt-get install clang libc++-dev
```
## MacOS
On a Mac, you will first need to
install Xcode or
[Command Line Tools for Xcode](https://developer.apple.com/download/more/)
and then run the following command from a terminal:
```sh
$ [sudo] xcode-select --install
```
To build gRPC from source, you may need to install the following
packages from [Homebrew](https://brew.sh):
```sh
$ brew install autoconf automake libtool shtool
```
If you plan to build from source and run tests, install the following as well:
```sh
$ brew install gflags
```
*Tip*: when building,
you *may* want to explicitly set the `LIBTOOL` and `LIBTOOLIZE`
environment variables when running `make` to ensure the version
installed by `brew` is being used:
```sh
$ LIBTOOL=glibtool LIBTOOLIZE=glibtoolize make
```
## Windows
To prepare for cmake + Microsoft Visual C++ compiler build
- Install Visual Studio 2015 or 2017 (Visual C++ compiler will be used).
- Install [Git](https://git-scm.com/).
- Install [CMake](https://cmake.org/download/).
- Install [Active State Perl](https://www.activestate.com/activeperl/) (`choco install activeperl`) - *required by boringssl*
- Install [Go](https://golang.org/dl/) (`choco install golang`) - *required by boringssl*
- Install [yasm](http://yasm.tortall.net/) and add it to `PATH` (`choco install yasm`) - *required by boringssl*
- (Optional) Install [Ninja](https://ninja-build.org/) (`choco install ninja`)
## Protoc
By default gRPC uses [protocol buffers](https://github.com/google/protobuf),
you will need the `protoc` compiler to generate stub server and client code.
If you compile gRPC from source, as described below, the Makefile will
automatically try compiling the `protoc` in third_party if you cloned the
repository recursively and it detects that you do not already have 'protoc' compiler
installed.
If 'protoc' compiler has not been installed, following commands can be used for installation.
```sh
$ cd grpc/third_party/protobuf
$ sudo make install # 'make' should have been run by core grpc
```
# Clone the repository (including submodules)
Before building, you need to clone the gRPC github repository and download submodules containing source code
for gRPC's dependencies (that's done by the `submodule` command or `--recursive` flag). The following commands will clone the gRPC
repository at the latest stable version.
## Unix
```sh
$ git clone -b $(curl -L https://grpc.io/release) https://github.com/grpc/grpc
$ cd grpc
$ git submodule update --init
```
## Windows
```
> @rem You can also do just "git clone --recursive -b THE_BRANCH_YOU_WANT https://github.com/grpc/grpc"
> powershell git clone --recursive -b ((New-Object System.Net.WebClient).DownloadString(\"https://grpc.io/release\").Trim()) https://github.com/grpc/grpc
> cd grpc
> @rem To update submodules at later time, run "git submodule update --init"
```
# Build from source
In the C++ world, there's no "standard" build system that would work for in all supported use cases and on all supported platforms.
Therefore, gRPC supports several major build systems, which should satisfy most users.
Note that this section only covers the build of gRPC itself, not the installation. See the [How to use](https://github.com/grpc/grpc/tree/master/src/cpp#to-start-using-grpc-c) instructions
for guidance on how to add gRPC as a dependency to a C++ application (there are several ways and system wide installation is often not the best choice).
## make (on UNIX systems)
From the grpc repository root
```sh
$ make
```
## bazel
See [Installing Bazel](https://docs.bazel.build/versions/master/install.html) for instructions how to install bazel on your system.
From the grpc repository root
```
$ bazel build :all
```
## cmake: Windows, Using Visual Studio 2015 or 2017 (can only build with OPENSSL_NO_ASM).
When using the "Visual Studio" generator,
cmake will generate a solution (`grpc.sln`) that contains a VS project for
every target defined in `CMakeLists.txt` (+ few extra convenience projects
added automatically by cmake). After opening the solution with Visual Studio
you will be able to browse and build the code.
```
> @rem Run from grpc directory after cloning the repo with --recursive or updating submodules.
> md .build
> cd .build
> cmake .. -G "Visual Studio 14 2015" -DCMAKE_BUILD_TYPE=Release
> cmake --build .
```
## cmake: Windows, Using Ninja (faster build, supports boringssl's assembly optimizations).
Please note that when using Ninja, you will still need Visual C++ (part of Visual Studio)
installed to be able to compile the C/C++ sources.
```
> @rem Run from grpc directory after cloning the repo with --recursive or updating submodules.
> md .build
> cd .build
> call "%VS140COMNTOOLS%..\..\VC\vcvarsall.bat" x64
> cmake .. -GNinja -DCMAKE_BUILD_TYPE=Release
> cmake --build .
```
|
