@@ -29,6 +29,9 @@ The `Repology`_ site is a useful resource to identify
currently shipped versions of software in various operating systems,
though it does not cover all distros listed below.
+You can find how to install build dependencies for different systems on the
+:ref:`setup-build-env` page.
+
Supported host architectures
----------------------------
@@ -130,7 +133,6 @@ Optional build dependencies
cross compilation using ``docker`` or ``podman``, or to use pre-built
binaries distributed with QEMU.
-
Windows
-------
new file mode 100644
@@ -0,0 +1,118 @@
+
+.. _setup-build-env:
+
+Setup build environment
+=======================
+
+QEMU uses a lot of dependencies on the host system. glib2 is used everywhere in
+the code base, and most of the other dependencies are optional.
+
+We present here simple instructions to enable native builds on most popular
+systems.
+
+You can find additional instructions on `QEMU wiki <https://wiki.qemu.org/>`_:
+
+- `Linux <https://wiki.qemu.org/Hosts/Linux>`_
+- `MacOS <https://wiki.qemu.org/Hosts/Mac>`_
+- `Windows <https://wiki.qemu.org/Hosts/W32>`_
+- `BSD <https://wiki.qemu.org/Hosts/BSD>`_
+
+Note: Installing dependencies using your package manager build dependencies may
+miss out on deps that have been newly introduced in qemu.git. In more, it misses
+deps the distribution has decided to exclude.
+
+Linux
+-----
+
+Fedora
+++++++
+
+::
+
+ sudo dnf update && sudo dnf builddep qemu
+
+Debian/Ubuntu
++++++++++++++
+
+You first need to enable `Sources List <https://wiki.debian.org/SourcesList>`_.
+Then, use apt to install dependencies:
+
+::
+
+ sudo apt update && sudo apt build-dep qemu
+
+MacOS
+-----
+
+You first need to install `Homebrew <https://brew.sh/>`_. Then, use it to
+install dependencies:
+
+::
+
+ brew update && brew install $(brew deps --include-build qemu)
+
+Windows
+-------
+
+You first need to install `MSYS2 <https://www.msys2.org/>`_.
+MSYS2 offers `different environments <https://www.msys2.org/docs/environments/>`_.
+x86_64 environments are based on GCC, while aarch64 is based on Clang.
+
+We recommend to use MINGW64 for windows-x86_64 and CLANGARM64 for windows-aarch64
+(only available on windows-aarch64 hosts).
+
+Then, you can open a windows shell, and enter msys2 env using:
+
+::
+
+ c:/msys64/msys2_shell.cmd -defterm -here -no-start -mingw64
+ # Replace -ucrt64 by -clangarm64 or -ucrt64 for other environments.
+
+MSYS2 package manager does not offer a built-in way to install build
+dependencies. You can start with this list of packages using pacman:
+
+Note: Dependencies need to be installed again if you use a different MSYS2
+environment.
+
+::
+
+ # update MSYS2 itself, you need to reopen your shell at the end.
+ pacman -Syu
+ pacman -S \
+ base-devel binutils bison diffutils flex git grep make sed \
+ ${MINGW_PACKAGE_PREFIX}-toolchain \
+ ${MINGW_PACKAGE_PREFIX}-glib2 \
+ ${MINGW_PACKAGE_PREFIX}-gtk3 \
+ ${MINGW_PACKAGE_PREFIX}-libnfs \
+ ${MINGW_PACKAGE_PREFIX}-libssh \
+ ${MINGW_PACKAGE_PREFIX}-ninja \
+ ${MINGW_PACKAGE_PREFIX}-pixman \
+ ${MINGW_PACKAGE_PREFIX}-pkgconf \
+ ${MINGW_PACKAGE_PREFIX}-python \
+ ${MINGW_PACKAGE_PREFIX}-SDL2 \
+ ${MINGW_PACKAGE_PREFIX}-zstd
+
+If you want to install all dependencies, it's possible to use recipe used to
+build QEMU in MSYS2 itself.
+
+::
+
+ pacman -S wget
+ wget https://raw.githubusercontent.com/msys2/MINGW-packages/refs/heads/master/mingw-w64-qemu/PKGBUILD
+ # Some packages may be missing for your environment, installation will still
+ # be done though.
+ makepkg -s PKGBUILD || true
+
+Build on windows-aarch64
+++++++++++++++++++++++++
+
+When trying to cross compile meson for x86_64 using UCRT64 or MINGW64 env,
+configure will run into an error because the cpu detected is not correct.
+
+Meson detects x86_64 processes emulated, so you need to manually set the cpu,
+and force a cross compilation (with empty prefix).
+
+::
+
+ ./configure --cpu=x86_64 --cross-prefix=
+
@@ -8,6 +8,7 @@ some of the basics if you are adding new files and targets to the build.
:maxdepth: 3
build-system
+ build-environment
kconfig
docs
qapi-code-gen
MacOS and Linux are straightforward, but Windows needs a bit more details. Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> --- docs/about/build-platforms.rst | 4 +- docs/devel/build-environment.rst | 118 +++++++++++++++++++++++++++++++ docs/devel/index-build.rst | 1 + 3 files changed, 122 insertions(+), 1 deletion(-) create mode 100644 docs/devel/build-environment.rst