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To appear in #cgo CFLAGS source code directives.ĭoes not apply to the CGO_CFLAGS environment variable.Ī regular expression specifying flags that must be disallowedįrom appearing in #cgo CFLAGS source code directives.ĬGO_CPPFLAGS, CGO_CPPFLAGS_ALLOW, CGO_CPPFLAGS_DISALLOW Either 0 or 1.įlags that cgo will pass to the compiler when compilingĪ regular expression specifying additional flags to allow The command to use to manipulate library archives when Temporary source files, packages, and binaries. The directory where the go command will write The name of checksum database to use and optionally its public key and Or that should not be compared against the checksum database. Of module path prefixes that should always be fetched directly See 'go help modules'.Ĭomma-separated list of glob patterns (in the syntax of Go's path.Match) The operating system for which to compile code.Įxamples are linux, darwin, windows, netbsd. Flags listed on the command lineĪre applied after this list and therefore override it. Each entry must be a standalone flag.īecause the entries are space-separated, flag values must To go commands by default, when the given flag is known by

The location of the Go environment configuration file.Ī space-separated list of -flag=value settings to apply The directory where the go command will store cachedĮnable various debugging facilities. The directory where 'go install' will install a command. The architecture, or processor, for which to compile code. The gccgo command to run for 'go build -compiler=gccgo'. The environment variable GOENV, and 'go env GOENV' prints theĮffective location, but 'go env -w' cannot change the default location. The location of the configuration file can be changed by setting Per-user configuration directory, as reported by os.UserConfigDir. Defaults changed using 'go env -w'Īre recorded in a Go environment configuration file stored in the If an environment variable is unset, the go command The go command and the tools it invokes consult environment variablesįor configuration. Let's take a general look at the following environmental variables and what they mean: $ go help environment If we want to know more about this language, we need to know other environment variables. We don't know much about other variables. After we install go, we usually focus on GOPATH and GOROOT, as well as several environment variables related to go mod. There are many environment variables in golang.