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README: Update "Build from source" section (#4426)

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Fix #2987
This commit is contained in:
Elliot Lee
2023-02-21 15:40:09 -08:00
committed by GitHub
parent 96aab1288f
commit 5ec8783d35
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[Build instructions are currently located in `BUILD.md`](../../BUILD.md)

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# Linux Build Instructions
This document focuses on building rippled for development purposes under recent
Ubuntu linux distributions. To build rippled for Redhat, Fedora or Centos
builds, including docker based builds for those distributions, please consult
the [rippled-package-builder](https://github.com/ripple/rippled-package-builder)
repository.
Note: Ubuntu 16.04 users may need to update their compiler (see the dependencies
section). For non Ubuntu distributions, the steps below should work by
installing the appropriate dependencies using that distribution's package
management tools.
## Dependencies
gcc-8 or later is required.
Use `apt-get` to install the dependencies provided by the distribution
```
$ apt-get update
$ apt-get install -y gcc g++ wget git cmake pkg-config libprotoc-dev protobuf-compiler libprotobuf-dev libssl-dev
```
To build the software in reporting mode, install these additional dependencies:
```
$ apt-get install -y autoconf flex bison
```
Advanced users can choose to install newer versions of gcc, or the clang compiler.
### Build Boost
Boost 1.70 or later is required. We recommend downloading and compiling boost
with the following process: After changing to the directory where
you wish to download and compile boost, run
```
$ wget https://boostorg.jfrog.io/artifactory/main/release/1.70.0/source/boost_1_70_0.tar.gz
$ tar -xzf boost_1_70_0.tar.gz
$ cd boost_1_70_0
$ ./bootstrap.sh
$ ./b2 headers
$ ./b2 -j $(echo $(nproc)-2 | bc)
```
### (Optional) Dependencies for Building Source Documentation
Source code documentation is not required for running/debugging rippled. That
said, the documentation contains some helpful information about specific
components of the application. For more information on how to install and run
the necessary components, see [this document](../../docs/README.md)
## Build
### Clone the rippled repository
From a shell:
```
git clone git@github.com:ripple/rippled.git
cd rippled
```
For a stable release, choose the `master` branch or one of the tagged releases
listed on [GitHub](https://github.com/ripple/rippled/releases).
```
git checkout master
```
or to test the latest release candidate, choose the `release` branch.
```
git checkout release
```
If you are doing development work and want the latest set of untested
features, you can consider using the `develop` branch instead.
```
git checkout develop
```
### Configure Library Paths
If you didn't persistently set the `BOOST_ROOT` environment variable to the
directory in which you compiled boost, then you should set it temporarily.
For example, if you built Boost in your home directory `~/boost_1_70_0`, you
would run the following shell command:
```
export BOOST_ROOT=~/boost_1_70_0
```
Alternatively, you can add `DBOOST_ROOT=~/boost_1_70_0` to the command line when
invoking `cmake`.
### Generate Configuration
All builds should be done in a separate directory from the source tree root
(a subdirectory is fine). For example, from the root of the ripple source tree:
```
mkdir build
cd build
```
followed by:
```
cmake -DCMAKE_BUILD_TYPE=Debug ..
```
If your operating system does not provide static libraries (Arch Linux, and
Manjaro Linux, for example), you must configure a non-static build by adding
`-Dstatic=OFF` to the above cmake line.
`CMAKE_BUILD_TYPE` can be changed as desired for `Debug` vs.
`Release` builds (all four standard cmake build types are supported).
To select a different compiler (most likely gcc will be found by default), pass
`-DCMAKE_C_COMPILER=<path/to/c-compiler>` and
`-DCMAKE_CXX_COMPILER=</path/to/cxx-compiler>` when configuring. If you prefer,
you can instead set `CC` and `CXX` environment variables which cmake will honor.
#### Options During Configuration:
The CMake file defines a number of configure-time options which can be
examined by running `cmake-gui` or `ccmake` to generated the build. In
particular, the `unity` option allows you to select between the unity and
non-unity builds. `unity` builds are faster to compile since they combine
multiple sources into a single compiliation unit - this is the default if you
don't specify. `nounity` builds can be helpful for detecting include omissions
or for finding other build-related issues, but aren't generally needed for
testing and running.
* `-Dunity=ON` to enable/disable unity builds (defaults to ON)
* `-Dassert=ON` to enable asserts
* `-Djemalloc=ON` to enable jemalloc support for heap checking
* `-Dsan=thread` to enable the thread sanitizer with clang
* `-Dsan=address` to enable the address sanitizer with clang
* `-Dstatic=ON` to enable static linking library dependencies
* `-Dreporting=ON` to build code necessary for reporting mode (defaults to OFF)
Several other infrequently used options are available - run `ccmake` or
`cmake-gui` for a list of all options.
### Build
Once you have generated the build system, you can run the build via cmake:
```
cmake --build . -- -j $(echo $(nproc)-2 | bc)
```
the `-j` parameter in this example tells the build tool to compile several
files in parallel. This value should be chosen roughly based on the number of
cores you have available and/or want to use for building.
When the build completes successfully, you will have a `rippled` executable in
the current directory, which can be used to connect to the network (when
properly configured) or to run unit tests.
#### Optional Installation
The rippled cmake build supports an installation target that will install
rippled as well as a support library that can be used to sign transactions. In
order to build and install the files, specify the `install` target when
building, e.g.:
```
cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_INSTALL_PREFIX=/opt/local ..
cmake --build . --target install -- -j $(echo $(nproc)-2 | bc)
```
We recommend specifying `CMAKE_INSTALL_PREFIX` when configuring in order to
explicitly control the install location for your files. Without this setting,
cmake will typically install in `/usr/local`. It is also possible to "rehome"
the installation by specifying the `DESTDIR` env variable during the install phase,
e.g.:
```
DESTDIR=~/mylibs cmake --build . --target install -- -j $(echo $(nproc)-2 | bc)
```
in which case, the files would be installed in the `CMAKE_INSTALL_PREFIX` within
the specified `DESTDIR` path.
#### Signing Library
If you want to use the signing support library to create an application, there
are two simple mechanisms with cmake + git that facilitate this.
With either option below, you will have access to a library from the
rippled project that you can link to in your own project's CMakeLists.txt, e.g.:
```
target_link_libraries (my-signing-app Ripple::xrpl_core)
```
##### Option 1: git submodules + add_subdirectory
First, add the rippled repo as a submodule to your project repo:
```
git submodule add -b master https://github.com/ripple/rippled.git vendor/rippled
```
change the `vendor/rippled` path as desired for your repo layout. Furthermore,
change the branch name if you want to track a different rippled branch, such
as `develop`.
Second, to bring this submodule into your project, just add the rippled subdirectory:
```
add_subdirectory (vendor/rippled)
```
##### Option 2: installed rippled + find_package
First, follow the "Optional Installation" instructions above to
build and install the desired version of rippled.
To make use of the installed files, add the following to your CMakeLists.txt file:
```
set (CMAKE_MODULE_PATH /opt/local/lib/cmake/ripple ${CMAKE_MODULE_PATH})
find_package(Ripple REQUIRED)
```
change the `/opt/local` module path above to match your chosen installation prefix.
## Unit Tests (Recommended)
`rippled` builds a set of unit tests into the server executable. To run these unit
tests after building, pass the `--unittest` option to the compiled `rippled`
executable. The executable will exit with summary info after running the unit tests.
## Workaround for a compile error in soci
Compilation errors have been observed with Apple Clang 13.1.6+ and soci v4.x. soci compiles with the `-Werror` flag which causes warnings to be treated as errors. These warnings pertain to style (not correctness). However, they cause the cmake process to fail.
Here's an example of how this looks:
```
.../rippled/.nih_c/unix_makefiles/AppleClang_13.1.6.13160021/Debug/src/soci/src/core/session.cpp:450:66: note: in instantiation of function template specialization 'soci::use<std::string>' requested here
return prepare << backEnd_->get_column_descriptions_query(), use(table_name, "t");
^
1 error generated.
```
Please apply the below patch (courtesy of Scott Determan) to remove these errors. `.nih_c/unix_makefiles/AppleClang_13.1.6.13160021/Debug/src/soci/cmake/SociConfig.cmake` file needs to be edited. This file is an example for Mac OS and it might be slightly different for other OS/Architectures.
```
diff --git a/cmake/SociConfig.cmake b/cmake/SociConfig.cmake
index 97d907e4..11bcd1f3 100644
--- a/cmake/SociConfig.cmake
+++ b/cmake/SociConfig.cmake
@@ -58,8 +58,8 @@ if (MSVC)
else()
- set(SOCI_GCC_CLANG_COMMON_FLAGS
- "-pedantic -Werror -Wno-error=parentheses -Wall -Wextra -Wpointer-arith -Wcast-align -Wcast-qual -Wfloat-equal -Woverloaded-virtual -Wredundant-decls -Wno-long-long")
+ set(SOCI_GCC_CLANG_COMMON_FLAGS "")
+ # "-pedantic -Werror -Wno-error=parentheses -Wall -Wextra -Wpointer-arith -Wcast-align -Wcast-qual -Wfloat-equal -Woverloaded-virtual -Wredundant-decls -Wno-long-long")
```
[Build instructions are currently located in `BUILD.md`](../../BUILD.md)

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# macOS Build Instructions
[Build and Run rippled on macOS](https://xrpl.org/build-run-rippled-macos.html)
[Build instructions are currently located in `BUILD.md`](../../BUILD.md)

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README.md
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### Build from Source
* [Linux](Builds/linux/README.md)
* [Mac](Builds/macos/README.md) (Not recommended for production)
* [Windows](Builds/VisualStudio2017/README.md) (Not recommended for production)
* [Read the build instructions in `BUILD.md`](BUILD.md)
## Key Features of the XRP Ledger