From a03894f8e25852f99950e5231b2102a482c8f325 Mon Sep 17 00:00:00 2001 From: Elliot Lee Date: Fri, 15 Sep 2023 21:54:25 -0700 Subject: [PATCH] docs(BUILD): make it easier to find environment.md (#4507) Make the instructions a bit easier to follow. Users on different platforms can look for their platform name to find relevant information. --- BUILD.md | 111 ++++++++++++++++++++++++++++++++++--------------------- 1 file changed, 69 insertions(+), 42 deletions(-) diff --git a/BUILD.md b/BUILD.md index 3d7223277b2..cc7e6f9318f 100644 --- a/BUILD.md +++ b/BUILD.md @@ -1,7 +1,7 @@ -> These instructions assume you have a C++ development environment ready -> with Git, Python, Conan, CMake, and a C++ compiler. For help setting one up -> on Linux, macOS, or Windows, see [our guide](./docs/build/environment.md). -> +| :warning: **WARNING** :warning: +|---| +| These instructions assume you have a C++ development environment ready with Git, Python, Conan, CMake, and a C++ compiler. For help setting one up on Linux, macOS, or Windows, [see this guide](./docs/build/environment.md). | + > These instructions also assume a basic familiarity with Conan and CMake. > If you are unfamiliar with Conan, > you can read our [crash course](./docs/build/conan.md) @@ -29,9 +29,12 @@ branch. git checkout develop ``` - ## Minimum Requirements +See [System Requirements](https://xrpl.org/system-requirements.html). + +Building rippled generally requires git, Python, Conan, CMake, and a C++ compiler. Some guidance on setting up such a [C++ development environment can be found here](./docs/build/environment.md). + - [Python 3.7](https://www.python.org/downloads/) - [Conan 1.55](https://conan.io/downloads.html) - [CMake 3.16](https://cmake.org/download/) @@ -46,82 +49,106 @@ The [minimum compiler versions][2] required are: | Apple Clang | 13.1.6 | | MSVC | 19.23 | -We don't recommend Windows for `rippled` production at this time. As of -January 2023, Ubuntu has the highest level of quality assurance, testing, -and support. +### Linux -Windows developers should use Visual Studio 2019. `rippled` isn't -compatible with [Boost](https://www.boost.org/) 1.78 or 1.79, and Conan -can't build earlier Boost versions. +The Ubuntu operating system has received the highest level of +quality assurance, testing, and support. -**Note:** 32-bit Windows development isn't supported. +Here are [sample instructions for setting up a C++ development environment on Linux](./docs/build/environment.md#linux). +### Mac -## Steps +Many rippled engineers use macOS for development. + +Here are [sample instructions for setting up a C++ development environment on macOS](./docs/build/environment.md#macos). +### Windows + +Windows is not recommended for production use at this time. + +- Additionally, 32-bit Windows development is not supported. +- Visual Studio 2022 is not yet supported. + - rippled generally requires [Boost][] 1.77, which Conan cannot build with VS 2022. + - Until rippled is updated for compatibility with later versions of Boost, Windows developers may need to use Visual Studio 2019. + +[Boost]: https://www.boost.org/ + +## Steps ### Set Up Conan -1. (Optional) If you've never used Conan, use autodetect to set up a default profile. +After you have a [C++ development environment](./docs/build/environment.md) ready with Git, Python, Conan, CMake, and a C++ compiler, you may need to set up your Conan profile. + +These instructions assume a basic familiarity with Conan and CMake. + +If you are unfamiliar with Conan, then please read [this crash course](./docs/build/conan.md) or the official [Getting Started][3] walkthrough. + +You'll need at least one Conan profile: ``` conan profile new default --detect ``` -2. Update the compiler settings. +Update the compiler settings: ``` conan profile update settings.compiler.cppstd=20 default ``` - Linux developers will commonly have a default Conan [profile][] that compiles - with GCC and links with libstdc++. - If you are linking with libstdc++ (see profile setting `compiler.libcxx`), - then you will need to choose the `libstdc++11` ABI. +**Linux** developers will commonly have a default Conan [profile][] that compiles +with GCC and links with libstdc++. +If you are linking with libstdc++ (see profile setting `compiler.libcxx`), +then you will need to choose the `libstdc++11` ABI: ``` conan profile update settings.compiler.libcxx=libstdc++11 default ``` - On Windows, you should use the x64 native build tools. - An easy way to do that is to run the shortcut "x64 Native Tools Command - Prompt" for the version of Visual Studio that you have installed. +**Windows** developers may need to use the x64 native build tools. +An easy way to do that is to run the shortcut "x64 Native Tools Command +Prompt" for the version of Visual Studio that you have installed. Windows developers must also build `rippled` and its dependencies for the x64 - architecture. + architecture: ``` conan profile update settings.arch=x86_64 default ``` -3. (Optional) If you have multiple compilers installed on your platform, - make sure that Conan and CMake select the one you want to use. - This setting will set the correct variables (`CMAKE__COMPILER`) - in the generated CMake toolchain file. +### Multiple compilers - ``` - conan profile update 'conf.tools.build:compiler_executables={"c": "", "cpp": ""}' default - ``` +When `/usr/bin/g++` exists on a platform, it is the default cpp compiler. This +default works for some users. - It should choose the compiler for dependencies as well, - but not all of them have a Conan recipe that respects this setting (yet). - For the rest, you can set these environment variables: +However, if this compiler cannot build rippled or its dependencies, then you can +install another compiler and set Conan and CMake to use it. +Update the `conf.tools.build:compiler_executables` setting in order to set the correct variables (`CMAKE__COMPILER`) in the +generated CMake toolchain file. +For example, on Ubuntu 20, you may have gcc at `/usr/bin/gcc` and g++ at `/usr/bin/g++`; if that is the case, you can select those compilers with: +``` +conan profile update 'conf.tools.build:compiler_executables={"c": "/usr/bin/gcc", "cpp": "/usr/bin/g++"}' default +``` - ``` - conan profile update env.CC= default - conan profile update env.CXX= default - ``` +Replace `/usr/bin/gcc` and `/usr/bin/g++` with paths to the desired compilers. + +It should choose the compiler for dependencies as well, +but not all of them have a Conan recipe that respects this setting (yet). +For the rest, you can set these environment variables. +Replace `` with paths to the desired compilers: + +- `conan profile update env.CC= default` +- `conan profile update env.CXX= default` -4. Export our [Conan recipe for Snappy](./external/snappy). - It doesn't explicitly link the C++ standard library, - which allows you to statically link it with GCC, if you want. +Export our [Conan recipe for Snappy](./external/snappy). +It does not explicitly link the C++ standard library, +which allows you to statically link it with GCC, if you want. ``` conan export external/snappy snappy/1.1.10@ ``` -5. Export our [Conan recipe for SOCI](./external/soci). - It patches their CMake to correctly import its dependencies. +Export our [Conan recipe for SOCI](./external/soci). +It patches their CMake to correctly import its dependencies. ``` conan export external/soci soci/4.0.3@