Since it is often slow or impossible to run a binary on a different OS/architecture platform, it is a common practice to build your final binary for many different platforms to maximize your program’s audience. In software development, it is important to consider the operating system and underlying processor architecture that you would like to compile your binary for. GIS4WRF can be used to pre-process input data, run simulations and visualize or post-process results on Windows, macOS, and Linux. 2008) modelling workflows. GIS4WRF is a free and open source QGIS plug-in to help researchers and practitioners with their Advanced Research Weather Research and Forecasting ( Skamarock et al.
![]() Build Binary For Windows On Code Without ChangingPrerequisitesThe Microsoft Build of OpenJDK is a new no-cost long-term supported distribution and Microsoft's new way to collaborate and contribute to the Java ecosystem. If everything goes well, the status window at the center of the window top shows 'Build ALLBUILD: Succeeded.' The next step is to build a binary for iOS simulator.In this tutorial, you will put together a sample application that joins strings together into a filepath, create and selectively include platform-dependent snippets, and build binaries for multiple operating systems and system architectures on your own system, showing you how to use this powerful capability of the Go programming language. By using environment variables and build tags, you can control which OS and architecture your final binary is built for, in addition to putting together a workflow that can quickly toggle the inclusion of platform-dependent code without changing your codebase.At the left-top of XCode window, choose 'OpenIGTLink > My Mac 64-bit' as a target from a pull down-menu and press 'Run' just next to the pull-down.At the time of writing this tutorial, the current Go release is 1.13.To find this list of possible platforms, run the following:You will receive an output similar to the following:Outputaix/ppc64 freebsd/amd64 linux/mipsle openbsd/386Android/386 freebsd/arm linux/ppc64 openbsd/amd64Android/amd64 illumos/amd64 linux/ppc64le openbsd/armAndroid/arm js/wasm linux/s390x openbsd/arm64Android/arm64 linux/386 nacl/386 plan9/386Darwin/386 linux/amd64 nacl/amd64p32 plan9/amd64Darwin/amd64 linux/arm nacl/arm plan9/armDarwin/arm linux/arm64 netbsd/386 solaris/amd64Darwin/arm64 linux/mips netbsd/amd64 windows/386Dragonfly/amd64 linux/mips64 netbsd/arm windows/amd64Freebsd/386 linux/mips64le netbsd/arm64 windows/armThis output is a set of key-value pairs separated by a /. This list can change with each new Go release, so the combinations discussed here might not be the same on another version of Go. A Go workspace set up by following How To Install Go and Set Up a Local Programming Environment.Before showing how to control the build process to build binaries for different platforms, let’s first inspect what kinds of platforms Go is capable of building for, and how Go references these platforms using the environment variables GOOS and GOARCH.The Go tooling has a command that can print a list of the possible platforms that Go can build on.As before, these are all possible values for an environment variable: GOARCH. The second part, after the /, is the architecture. In Go, these operating systems are possible values for the environment variable GOOS, pronounced “goose”, which stands for Go Operating System. Next, you will put together a program to use as an example of how to use these environment variables and build tags to build binaries for other platforms. To find out what combination your platform is, you can use the go env command and pass GOOS and GOARCH as arguments:In testing this example, we ran this command on macOS on a machine with an AMD64 architecture, so we will receive the following output:Here the output of the command tells us that our system has GOOS=darwin and GOARCH=amd64.You now know what the GOOS and GOARCH are in Go, as well as their possible values. However, Go can also cover less mainstream platforms like nacl, which represents Google’s Native Client.When you run a command like go build, Go uses the current platform’s GOOS and GOARCH to determine how to build the binary. These cover the big three OS platforms: Linux, Windows, and macOS, which is based on the Darwin operating system and is thus called darwin. The GOARCH here would be 386, which stands for the Intel 80386 microprocessor.There are many platforms available with the go build command, but a majority of the time you’ll end up using linux , windows, or darwin as a value for GOOS. The key-value pair starts with the GOOS, which in this example would be linux, referring to the Linux OS. ![]() Implementing a Platform-Specific FunctionNow that you know how Go’s standard library implements platform-specific code, you can use build tags to do this in your own app program. With this in mind, you can now update your program and write your own implementation of filepath.Join(), using build tags to manually set the correct PathSeparator for Windows and Unix platforms. Because of this, when your program is run on Windows, it will use the constants of PathSeparator and PathListSeparator from the path_windows.go code snippet.To return to the command line, quit less by pressing q.In this step, you built a program that showed how Go converts the GOOS and GOARCH automatically into build tags. Using Your Local GOOS and GOARCH Environment VariablesEarlier, you ran the go env GOOS GOARCH command to find out what OS and architecture you were working on. To do this, you will alter your local GOOS and GOARCH environment variables in the next step. The application can now compile one way for Windows and another for all other platforms.While the binaries will now build correctly for their platforms, there are further changes you must make in order to compile for a platform that you do not have access to. Run the file command on this binary:You will receive output like the following: app: ELF 64-bit MSB executable, 64-bit PowerPC or cisco 7500, version 1 (SYSV), statically linked, not strippedBy setting your local GOOS and GOARCH environment variables, you can now build binaries for any of Go’s compatible platforms without a complicated configuration or setup. Run the following:Your app executable will now be replaced by a file for a different architecture. You can set either the GOOS or GOARCH environment variables to build for a different platform using go build.If you are not using a Windows system, build a windows binary of app by setting the GOOS environment variable to windows when running the go build command:Now list the files in your current directory:The output of listing the directory shows there is now an app.exe Windows executable in the project directory:Outputapp.exe: PE32+ executable (console) x86-64 (stripped to external PDB), for MS WindowsYou can also set one, or both environment variables at build time. This means that you can change GOOS or GOARCH so that they do not default to your local OS and architecture.The go build command behaves in a similar manner to the go env command.
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