Mac system go upgrade 1.4 to 1.5.1

This is a creation in Article, where the information may have evolved or changed. Mac native is the first brew install go 1.3.3 version, this January through brew upgrade to version 1.4.
But the official update for brew is too slow to wait to manually upgrade to version 1.5.1.


1. Download go1.5.1.darwin-amd64.tar.gz from official website https://golang.org/dl/
Cd/users/wenke/documents/tools/go
Mv/users/wenke/downloads/go1.5.1.darwin-amd64.tar.gz./
Tar zxvf go1.5.1.darwin-amd64.tar.gz
Xattr-r-C Go
MV Go 1.5.1




2. Modify the Liteide configuration file:
Goroot=/usr/local/cellar/go/1.4/libexec
Become:
goroot=/users/wenke/documents/tools/go/1.5.1


3. Modifying a hard-link file
Go version
Go version go1.4 darwin/amd64


which go
/usr/local/bin/go


Cd/usr/local/bin
ll go*
Lrwxr-xr-x 1 root admin 1 go. /cellar/go/1.4/bin/go
Lrwxr-xr-x 1 root admin 1 gofmt. /cellar/go/1.4/bin/gofmt
RM Go
sudo ln-s/users/wenke/documents/tools/go/1.5.1/bin/go go
RM gofmt
sudo ln-s/users/wenke/documents/tools/go/1.5.1/bin/gofmt gofmt
ll go*
Lrwxr-xr-x 1 root Admin $13:50 go,/users/wenke/documents/tools/go/1.5.1/bin/go
Lrwxr-xr-x 1 root admin 13:50 gofmt-/users/wenke/documents/tools/go/1.5.1/bin/gofmt


Go version
Go version go1.5.1 darwin/amd64


4. Modifying environment variables
VI ~/.ZSHRC
Export goroot=/users/wenke/documents/tools/go/1.5.1
Export gobin= $GOROOT/bin
Export path= $PATH: $GOROOT/bin
Export Gopath=~/go
Export path= $PATH: $GOPATH/bin


source. ZSHRC


5. Delete the files generated by the old version compilation
RM-RF $GOPATH/pkg


TIP:
If you have finished upgrading, compile or run the old project error:
Go Build
Package Ysz
Imports Runtime:c source files not allowed when not using CGO or swig:atomic_amd64x.c defs.c float.c heapdump.c lfstack. C malloc.c mcache.c mcentral.c mem_darwin.c mfixalloc.c mgc0.c mheap.c msize.c os_darwin.c panic.c parfor.c proc.c Runtime . C signal.c signal_amd64x.c signal_unix.c stack.c string.c sys_x86.c
This is why the environment variable is not in effect. Only source. ZSHRC or new terminal can be solved!