forked from gitea/gitea
263 lines
9.8 KiB
Markdown
263 lines
9.8 KiB
Markdown
---
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date: "2016-12-01T16:00:00+02:00"
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title: "Installation from source"
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slug: "install-from-source"
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sidebar_position: 30
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toc: false
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draft: false
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aliases:
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- /en-us/install-from-source
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menu:
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sidebar:
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parent: "installation"
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name: "From source"
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sidebar_position: 30
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identifier: "install-from-source"
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---
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# Installation from source
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You should [install go](https://golang.org/doc/install) and set up your go
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environment correctly. In particular, it is recommended to set the `$GOPATH`
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environment variable and to add the go bin directory or directories
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`${GOPATH//://bin:}/bin` to the `$PATH`. See the Go wiki entry for
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[GOPATH](https://github.com/golang/go/wiki/GOPATH).
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Next, [install Node.js with npm](https://nodejs.org/en/download/) which is
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required to build the JavaScript and CSS files. The minimum supported Node.js
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version is @minNodeVersion@ and the latest LTS version is recommended.
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**Note**: When executing make tasks that require external tools, like
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`make misspell-check`, Gitea will automatically download and build these as
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necessary. To be able to use these, you must have the `"$GOPATH/bin"` directory
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on the executable path. If you don't add the go bin directory to the
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executable path, you will have to manage this yourself.
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**Note 2**: Go version @minGoVersion@ or higher is required. However, it is recommended to
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obtain the same version as our continuous integration, see the advice given in
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[Hacking on Gitea](development/hacking-on-gitea.md)
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## Download
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First, we must retrieve the source code. Since, the advent of go modules, the
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simplest way of doing this is to use Git directly as we no longer have to have
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Gitea built from within the GOPATH.
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```bash
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git clone https://github.com/go-gitea/gitea
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```
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(Previous versions of this document recommended using `go get`. This is
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no longer necessary.)
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Decide which version of Gitea to build and install. Currently, there are
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multiple options to choose from. The `main` branch represents the current
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development version. To build with main, skip to the [build section](#build).
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To work with tagged releases, the following commands can be used:
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```bash
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git branch -a
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git checkout v@version@
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```
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To validate a Pull Request, first enable the new branch (`xyz` is the PR id;
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for example `2663` for [#2663](https://github.com/go-gitea/gitea/pull/2663)):
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```bash
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git fetch origin pull/xyz/head:pr-xyz
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```
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To build Gitea from source at a specific tagged release (like v@version@), list the
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available tags and check out the specific tag.
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List available tags with the following.
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```bash
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git tag -l
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git checkout v@version@ # or git checkout pr-xyz
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```
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## Build
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To build from source, the following programs must be present on the system:
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- `go` @minGoVersion@ or higher, see [here](https://golang.org/dl/)
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- `node` @minNodeVersion@ or higher with `npm`, see [here](https://nodejs.org/en/download/)
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- `make`, see [here](development/hacking-on-gitea.md#installing-make)
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Various [make tasks](https://github.com/go-gitea/gitea/blob/main/Makefile)
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are provided to keep the build process as simple as possible.
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Depending on requirements, the following build tags can be included.
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- `bindata`: Build a single monolithic binary, with all assets included. Required for production build.
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- `sqlite sqlite_unlock_notify`: Enable support for a
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[SQLite3](https://sqlite.org/) database. Suggested only for tiny
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installations.
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- `pam`: Enable support for PAM (Linux Pluggable Authentication Modules). Can
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be used to authenticate local users or extend authentication to methods
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available to PAM.
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- `gogit`: (EXPERIMENTAL) Use go-git variants of Git commands.
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Bundling all assets (JS/CSS/templates, etc) into the binary. Using the `bindata` build tag is required for
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production deployments. You could exclude `bindata` when you are developing/testing Gitea or able to separate the assets correctly.
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To include all assets, use the `bindata` tag:
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```bash
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TAGS="bindata" make build
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```
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In the default release build of our continuous integration system, the build
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tags are: `TAGS="bindata sqlite sqlite_unlock_notify"`. The simplest
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recommended way to build from source is therefore:
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```bash
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TAGS="bindata sqlite sqlite_unlock_notify" make build
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```
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The `build` target is split into two sub-targets:
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- `make backend` which requires [Go @minGoVersion@](https://golang.org/dl/) or greater.
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- `make frontend` which requires [Node.js @minNodeVersion@](https://nodejs.org/en/download/) or greater.
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If pre-built frontend files are present it is possible to only build the backend:
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```bash
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TAGS="bindata" make backend
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```
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Webpack source maps are by default enabled in development builds and disabled in production builds. They can be enabled by setting the `ENABLE_SOURCEMAP=true` environment variable.
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## Test
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After following the steps above, a `gitea` binary will be available in the working directory.
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It can be tested from this directory or moved to a directory with test data. When Gitea is
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launched manually from command line, it can be killed by pressing `Ctrl + C`.
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```bash
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./gitea web
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```
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## Changing default paths
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Gitea will search for a number of things from the _`CustomPath`_. By default this is
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the `custom/` directory in the current working directory when running Gitea. It will also
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look for its configuration file _`CustomConf`_ in `$(CustomPath)/conf/app.ini`, and will use the
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current working directory as the relative base path _`AppWorkPath`_ for a number configurable
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values. Finally the static files will be served from _`StaticRootPath`_ which defaults to the _`AppWorkPath`_.
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These values, although useful when developing, may conflict with downstream users preferences.
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One option is to use a script file to shadow the `gitea` binary and create an appropriate
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environment before running Gitea. However, when building you can change these defaults
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using the `LDFLAGS` environment variable for `make`. The appropriate settings are as follows
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- To set the _`CustomPath`_ use `LDFLAGS="-X \"code.gitea.io/gitea/modules/setting.CustomPath=custom-path\""`
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- For _`CustomConf`_ you should use `-X \"code.gitea.io/gitea/modules/setting.CustomConf=conf.ini\"`
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- For _`AppWorkPath`_ you should use `-X \"code.gitea.io/gitea/modules/setting.AppWorkPath=working-path\"`
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- For _`StaticRootPath`_ you should use `-X \"code.gitea.io/gitea/modules/setting.StaticRootPath=static-root-path\"`
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- To change the default PID file location use `-X \"code.gitea.io/gitea/cmd.PIDFile=/run/gitea.pid\"`
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Add as many of the strings with their preceding `-X` to the `LDFLAGS` variable and run `make build`
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with the appropriate `TAGS` as above.
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Running `gitea help` will allow you to review what the computed settings will be for your `gitea`.
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## Cross Build
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The `go` compiler toolchain supports cross-compiling to different architecture targets that are supported by the toolchain. See [`GOOS` and `GOARCH` environment variable](https://golang.org/doc/install/source#environment) for the list of supported targets. Cross compilation is helpful if you want to build Gitea for less-powerful systems (such as Raspberry Pi).
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To cross build Gitea with build tags (`TAGS`), you also need a C cross compiler which targets the same architecture as selected by the `GOOS` and `GOARCH` variables. For example, to cross build for Linux ARM64 (`GOOS=linux` and `GOARCH=arm64`), you need the `aarch64-unknown-linux-gnu-gcc` cross compiler. This is required because Gitea build tags uses `cgo`'s foreign-function interface (FFI).
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Cross-build Gitea for Linux ARM64, without any tags:
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```
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GOOS=linux GOARCH=arm64 make build
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```
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Cross-build Gitea for Linux ARM64, with recommended build tags:
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```
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CC=aarch64-unknown-linux-gnu-gcc GOOS=linux GOARCH=arm64 TAGS="bindata sqlite sqlite_unlock_notify" make build
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```
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Replace `CC`, `GOOS`, and `GOARCH` as appropriate for your architecture target.
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You will sometimes need to build a static compiled image. To do this you will need to add:
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```
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LDFLAGS="-linkmode external -extldflags '-static' $LDFLAGS" TAGS="netgo osusergo $TAGS" make build
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```
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This can be combined with `CC`, `GOOS`, and `GOARCH` as above.
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### Adding bash/zsh autocompletion (from 1.19)
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A script to enable bash-completion can be found at [`contrib/autocompletion/bash_autocomplete`](https://raw.githubusercontent.com/go-gitea/gitea/main/contrib/autocompletion/bash_autocomplete). This should be altered as appropriate and can be `source` in your `.bashrc`
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or copied as `/usr/share/bash-completion/completions/gitea`.
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Similarly, a script for zsh-completion can be found at [`contrib/autocompletion/zsh_autocomplete`](https://raw.githubusercontent.com/go-gitea/gitea/main/contrib/autocompletion/zsh_autocomplete). This can be copied to `/usr/share/zsh/_gitea` or sourced within your
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`.zshrc`.
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YMMV and these scripts may need further improvement.
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## Compile or cross-compile using Linux with Zig
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Follow [Getting Started of Zig](https://ziglang.org/learn/getting-started/#installing-zig) to install zig.
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- Compile (Linux ➝ Linux)
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```sh
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CC="zig cc -target x86_64-linux-gnu" \
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CGO_ENABLED=1 \
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CGO_CFLAGS="-O2 -g -pthread" \
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CGO_LDFLAGS="-linkmode=external -v"
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GOOS=linux \
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GOARCH=amd64 \
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TAGS="bindata sqlite sqlite_unlock_notify" \
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make build
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```
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- Cross-compile (Linux ➝ Windows)
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```sh
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CC="zig cc -target x86_64-windows-gnu" \
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CGO_ENABLED=1 \
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CGO_CFLAGS="-O2 -g -pthread" \
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GOOS=windows \
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GOARCH=amd64 \
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TAGS="bindata sqlite sqlite_unlock_notify" \
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make build
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```
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## Compile or cross-compile with Zig using Windows
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Compile with `GIT BASH`.
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- Compile (Windows ➝ Windows)
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```sh
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CC="zig cc -target x86_64-windows-gnu" \
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CGO_ENABLED=1 \
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CGO_CFLAGS="-O2 -g -pthread" \
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GOOS=windows \
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GOARCH=amd64 \
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TAGS="bindata sqlite sqlite_unlock_notify" \
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make build
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```
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- Cross-compile (Windows ➝ Linux)
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```sh
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CC="zig cc -target x86_64-linux-gnu" \
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CGO_ENABLED=1 \
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CGO_CFLAGS="-O2 -g -pthread" \
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CGO_LDFLAGS="-linkmode=external -v"
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GOOS=linux \
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GOARCH=amd64 \
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TAGS="bindata sqlite sqlite_unlock_notify" \
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make build
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```
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