Differential D28789 Diff 84260 documentation/content/en/books/porters-handbook/uses/chapter.adoc

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	====			====

	Possible arguments: (none), `modules`, `no_targets`, `run`			Possible arguments: (none), `modules`, `no_targets`, `run`

	Sets default values and targets used to build Go software. A build dependency on the Go compiler port selected via `GO_PORT` is added. By default the build is performed in GOPATH mode. If Go software uses modules, the modules-aware mode can be switched on with `modules` argument. `no_targets` will setup build environment like `GO_ENV`, `GO_BUILDFLAGS` but skip creating `post-extract` and `do-{build,install,test}` targets. `run` will also add a run dependency on what is in `GO_PORT`.			Sets default values and targets used to build Go software. A build dependency on the Go compiler port selected via `GO_PORT` is added. By default the build is performed in GOPATH mode. If Go software uses modules, the modules-aware mode can be switched on with `modules` argument. `no_targets` will setup build environment like `GO_ENV`, `GO_BUILDFLAGS` but skip creating `post-extract` and `do-{build,install,test}` targets. `run` will also add a run dependency on what is in `GO_PORT`.

	The build process is controlled by several variables:			The build process is controlled by several variables:

				`GO_MODULE`::
				The name of the application module as specified by `module` directive in `go.mod`. In most cases, this is the only requred variable for ports that use Go modules.

	`GO_PKGNAME`::			`GO_PKGNAME`::
	The name of the Go package when building in GOPATH mode. This is the directory that will be created in `${GOPATH}/src`. If not set explicitly and `GH_SUBDIR` or `GL_SUBDIR` is present, `GO_PKGNAME` will be inferred from it. It is not needed when building in modules-aware mode.			The name of the Go package when building in GOPATH mode. This is the directory that will be created in `${GOPATH}/src`. If not set explicitly and `GH_SUBDIR` or `GL_SUBDIR` is present, `GO_PKGNAME` will be inferred from it. It is not needed when building in modules-aware mode.

	`GO_TARGET`::			`GO_TARGET`::
	The packages to build. The default value is `${GO_PKGNAME}`. `GO_TARGET` can also be a tuple in the form `package:path` where path can be either a simple filename or a full path starting with `${PREFIX}`.			The packages to build. The default value is `${GO_PKGNAME}`. `GO_TARGET` can also be a tuple in the form `package:path` where path can be either a simple filename or a full path starting with `${PREFIX}`.

	`GO_TESTTARGET`::			`GO_TESTTARGET`::
	The packages to test. The default value is `./...` (the current package and all subpackages).			The packages to test. The default value is `./...` (the current package and all subpackages).
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