diff --git a/INSTALL.md b/INSTALL.md
index 03e3da2c..858dff61 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -1,7 +1,7 @@
 #Install Instructions
 
 - [Installation](#installation)
-    - [Linux](#linux)
+    - [Unix like (Linux)](#unix)
     - [OS X](#osx)
       - [Homebrew](#homebrew)
       - [Non-Homebrew](#non-homebrew)
@@ -10,11 +10,15 @@
 <a name="installation" />
 ##Installation
 
-<a name="linux" />
-###Linux:
+<a name="unix" />
+###Most Unix like OSes (Linux):
 
 Build dependencies:
 
+Note: package fetching commands may vary by OS.
+
+On Ubuntu: 
+
 ```bash
 sudo apt-get install build-essential libtool autotools-dev automake libconfig-dev ncurses-dev checkinstall check git libswscale-dev libsdl-dev libopenal-dev libopus-dev libvpx-dev yasm
 ```
@@ -26,6 +30,17 @@ yum groupinstall "Development Tools"
 yum install libtool autoconf automake libconfig-devel ncurses-devel check check-devel
 ```
 
+On SunOS: 
+
+```pfexcec 
+pkg install autoconf automake gcc-47
+```
+On FreeBSD 10+:
+
+```tcsh
+pkg install automake autoconf
+```
+
 Note that `libconfig-dev` should be >= 1.4.
 
 You should get and install [libsodium](https://github.com/jedisct1/libsodium):
diff --git a/toxcore/network.h b/toxcore/network.h
index 0e0f0af9..2ba2b005 100644
--- a/toxcore/network.h
+++ b/toxcore/network.h
@@ -24,6 +24,11 @@
 #ifndef NETWORK_H
 #define NETWORK_H
 
+#ifdef PLAN9
+#include <u.h> //Plan 9 requires this is imported first
+#include <libc.h>
+#endif
+
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdint.h>
@@ -75,6 +80,19 @@ typedef int sock_t;
 
 #endif
 
+#if defined(__AIX__)
+#	define _XOPEN_SOURCE 1
+#endif
+
+#if defined(__sun__)
+#define __EXTENSIONS__ 1 // SunOS! 
+#if defined(__SunOS5_6__) || defined(__SunOS5_7__) || defined(__SunOS5_8__) || defined(__SunOS5_9__) || defined(__SunOS5_10__)
+//Nothing needed
+#else
+#define __MAKECONTEXT_V2_SOURCE 1
+#endif
+#endif
+
 #ifndef VANILLA_NACL
 /* We use libsodium by default. */
 #include <sodium.h>