Mac install and run go Helloword

This is a creation in Article, where the information may have evolved or changed.

Haha, so excited, and come into contact with a powerful language, simply record the problem of running the first program on a Mac.

Hello Word Sample, pkg Install package: wget https://storage.googleapis.com/golang/go1.2.2.darwin-amd64-osx10.8.pkg, after downloading, need to set environment variable before OK Oh, like, my

Bash_profile file,

Goarch= "386" # 386 is from uname-p get the OH

Gobin= ""

Gochar= "6"

Goexe= ""

Gohostarch= "386" # 386 is from uname-p get the OH

Gohostos= "Darwin"

Goos= "Darwin"

Gopath= ""

Gorace= ""

goroot= "/usr/local/go"

Gotooldir= "/usr/local/go/pkg/tool/darwin_amd64"

term= "Dumb"

Cc= "Clang"

Gogccflags= "-g-o2-fpic-m64-pthread-fno-caret-diagnostics-qunused-arguments-fno-common"

cxx= "clang++"

cgo_enabled= "1"

source bash_profile can be;

If a similar error occurs at build (go build runtime:darwin/amd64 must be bootstrapped using Make.bash), you can try the following command to compile again:
$ Goos=darwin goarch=amd64 Go build-x-o testport_linux hello.go
work=/var/folders/vp/f5r3wgld1w133srlbyd4190m0000gn/t/go-build683397936
Mkdir-p $WORK/command-line-arguments/_obj/
Cd/users/jake/rdd/golang
/usr/local/go/pkg/tool/darwin_amd64/6g-o $WORK/command-line-arguments/_obj/_go_.6-p command-line-arguments- Complete-d _/users/jake/rdd/golang-i $WORK./hello.go
/usr/local/go/pkg/tool/darwin_amd64/pack GRCP $WORK $WORK/command-line-arguments.a $WORK/command-line-arguments/_ obj/_go_.6
Cd.
/usr/local/go/pkg/tool/darwin_amd64/6l-o testport_linux-l $WORK $WORK/COMMAND-LINE-ARGUMENTS.A
We found that go actually used the $GOROOT/PKG/TOOL/LINUX_AMD64 6g (compiler) and 6l (linker) to complete the entire compilation process, see 6g and 6l in the directory named Linux_amd64, we can boldly guess the compilation darwin/ The AMD64 go program should use the tools under $GOROOT/PKG/TOOL/DARWIN_AMD64. However, I did not find the DARWIN_AMD64 directory under the $goroot/pkg/tool, that is, we installed the installation package go only with the for LINUX_AMD64 compiler tool, to cross-compile the for DARWIN_AMD64 program, We need to compile these tools manually by Make.bash.
Based on Make.bash's usage instructions, let's try to build:


CD $GOROOT/SRC
sudo goos=darwin goarch=amd64./make.bash


After compiling, we'll try to compile the program for DARWIN_AMD64:


$ Goos=darwin goarch=amd64 Go build-x-o test_darwin hello.go


At this point, if the current directory generated the Test_darwin file, then execute, see the long-lost Hello world. Then modify the environment variables:
$ Export GOARCH=AMD64