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Building MongoDB

Please note that prebuilt binaries are available on mongodb.org and may be the easiest way to get started, rather than building from source.

To build MongoDB, you will need:

A modern C++ compiler capable of compiling C++20. One of the following is required:
- GCC 14.2
- Clang 19.1
- Apple XCode 16.4
- Visual Studio 2022 version 17.0
On Linux and macOS, the libcurl library and header is required. MacOS includes libcurl.
- Fedora/RHEL - dnf install libcurl-devel
- Ubuntu/Debian - libcurl-dev is provided by three packages. Install one of them:
  - libcurl4-openssl-dev
  - libcurl4-nss-dev
  - libcurl4-gnutls-dev
- On Ubuntu, the lzma library is required. Install liblzma-dev
- On Amazon Linux, the xz-devel library is required. yum install xz-devel
Python 3.10
About 13 GB of free disk space for the core binaries (mongod, mongos, and mongo).

If using a newer version of a C++ compiler than listed above, it may work. However the versions listed above have been verified to work.

MongoDB supports the following architectures: arm64, ppc64le, s390x, and x86-64. More detailed platform instructions can be found below.

Quick (re)Start

Linux

python buildscripts/install_bazel.py
export PATH=~/.local/bin:$PATH
bazel build install-dist-test
bazel-bin/install/bin/mongod --version

Bazel

If you only want to build the database server mongod:

$ bazel build install-mongod

Note: For C++ compilers that are newer than the supported version, the compiler may issue new warnings that cause MongoDB to fail to build since the build system treats compiler warnings as errors. To ignore the warnings, pass the switch --disable_warnings_as_errors=True to the bazel command.

$ bazel build install-mongod --disable_warnings_as_errors=True

If you want to build absolutely everything (mongod, mongo, unit tests, etc):

$ bazel build --build_tag_filters=mongo_binary //src/mongo/...

Bazel Targets

The following targets can be named on the bazel command line to build and install a subset of components:

install-mongod
install-mongos
install-core (includes only mongod and mongos)
install-dist (includes all server components)
install-devcore (includes mongod, mongos, and jstestshell (formerly mongo shell))

NOTE: The install-core and install-dist targets are not guaranteed to be identical. The install-core target will only ever include a minimal set of "core" server components, while install-dist is intended for a functional end-user installation. If you are testing, you should use the install-devcore or install-dist targets instead.

Where to find Binaries

The build system will produce an installation tree into bazel-bin/install, as well individual install target trees like bazel-bin/<install-target>.

Windows

Build requirements:

Visual Studio 2022 version 17.0 or newer
Python 3.10

Or download a prebuilt binary for Windows at www.mongodb.org.

Debian/Ubuntu

To install dependencies on Debian or Ubuntu systems:

# apt-get install build-essential

OS X

Install Xcode 16.4 or newer. Make sure macOS 15.5 platform is installed.

Install llvm and lld, version 19 from brew: brew install llvm@19 lld@19

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