OpenBSD.md

# Go on OpenBSD

Go is available within the OpenBSD ports tree collection since OpenBSD 5.2.  It is marked as i386- and amd64- only.  See [`ports/lang/go`](http://ports.su/lang/go) for details.

| **OpenBSD release** | **golang in ports** |
|:--------------------|:--------------------|
| 5.8 (Oct 18, 2015)  | go-1.4.2            |
| 5.7 (May 1, 2015)   | go-1.4.1            |
| 5.6 (Nov 1, 2014)   | go-1.3p0            |

## Building from source.

Required:

  * OpenBSD amd64, 386: 5.5 and above
    * If you want to run go1.3 or 1.4 on OpenBSD 5.6, see http://golang.org/issue/9102

| **Kernel version** | **Min. version** | **Max. version**|
|:-------------------|:-----------------|:----------------|
| 5.8                | go1.4.1          | go1.6 |
| 5.7                | go1.4.1          | go1.6 |
| 5.6                | go1.4.1          | go1.6 |

  * ulimits (` /etc/login.conf `)

Edit `/etc/login.conf` so that the staff class has the proper
settings. The following is a working example of the staff class:
```
staff:\
       :datasize-cur=infinity:\
       :datasize-max=infinity:\
       :datasize=infinity:\
       :openfiles-cur=4096:\
       :maxproc-max=512:\
       :maxproc-cur=512:\
       :ignorenologin:\
       :requirehome@:\
       :tc=default:
```

If the database file `/etc/login.conf.db` exists, you need to rebuild it with:
```
# cap_mkdb /etc/login.conf
```

Add the login class to the user you would like to have build go
```
# vipw
```

Look for the 5th element which is the login class, this is blank by
users added by useradd. In the following example the user operator
would be added to the staff class
```
## Before
operator:*:2:5::0:0:System &:/operator:/sbin/nologin

## After
operator:*:2:5:staff:0:0:System &:/operator:/sbin/nologin
```