If your default prefix is /usr/local and you happen to get an error that says "error while loading shared libraries: libtoxcore.so.0: cannot open shared object file: No such file or directory", then you can try running ```sudo ldconfig```. If that doesn't fix it, run:
You need the latest XCode with the Developer Tools (Preferences -> Downloads -> Command Line Tools).
The following libraries are required along with libsodium and cmake for Mountain Lion and XCode 4.6.3 install libtool, automake and autoconf. You can download them with Homebrew, or install them manually.
There are no binaries/executables going to /bin/ or /usr/bin/ now. Everything is compiled and ran from the inside your local branch. See [Usage](#usage) below.
pkg-config is important for enabling a/v support in tox core, failure to install pkg-config will prevent tox core form finding the required libopus/libvpx libraries. (pkg-config may not configure properly, if you get an error about GLIB, run configure with the following parameter, --with-internal-glib).
If after running ./configure you get an error about core being unable to find libsodium (and you have installed it) run the following in place of ./configure;
It's a bit challenging to build Tox and all of its dependencies nativly on Windows, so we will show an easier, less error and headache prone method of building it -- cross-compiling.
<aname="windows-cross-compile-vm"/>
#####Setting up a VM
We will assume that you don't have any VM running Linux around and will guide you from the ground up.
First, you would need to get a virtual machine and a Linux distribution image file.
For a virtual machine we will use VirtualBox. You can get it [here](https://www.virtualbox.org/wiki/Downloads).
For a Linux distribution we will use Lubuntu 14.04 32-bit, which you can get [here](https://help.ubuntu.com/community/Lubuntu/GetLubuntu).
After you have those downloaded, install the VirtualBox and create a VM in it. The default of 512mb of RAM and 8gb of dynamically-allocated virtual hard drive would be enough.
When you have created the VM, go into its **Settings** -> **System** -> **Processor** and add some cores, if you have any additional available, for faster builds.
Then, go to **Settings** -> **Storage**, click on **Empty** under **Controller: IDE**, click on the little disc icon on the right side of the window, click on **Choose a virtual CD/DVD disk file** and select the downloaded Lubuntu image file.
Start the VM and follow the installation instructions.
After Lubuntu is installed and you have booted into it, in VirtualBox menu on top of the window select **Devices** -> **Insert Guest Additions CD image...**.
Open terminal from **Lubuntu's menu** -> **Accessories**.
Execute:
```bash
sudo apt-get update
sudo apt-get install build-essential -y
cd /media/*/*/
sudo ./VBoxLinuxAdditions.run
```
After that, create a folder called `toxbuild` somewhere on your Windows system. The go to **Devices** -> **Shared Folders Settings...** in the VirtualBox menu, add the `toxbuild` folder there and set **Auto-mount** and **Make Permanent** options.
Execute:
```bash
sudo adduser `whoami` vboxsf
```
Note the use of a [grave accent](http://en.wikipedia.org/wiki/Grave_accent) instead of an apostrophe.
Then just reboot the system with:
```bash
sudo reboot
```
After the system is booted, go to **Devices** -> **Shared Clipboard** and select **Bidirectional**. Now you will be able to copy-paste text between the host and the guest systems.
Now that the virtual machine is all set up, let's move to getting build dependencies and setting up environment variables.
<aname="windows-cross-compile-environment"/>
#####Setting up the environment
First we will install all tools that we would need for building:
That's it. Now you should have `release/lib/libtox.dll` and `release/include/tox/<headers>` in your `toxbuild` directory on the Windows system.
<aname="windows-native"/>
####Native
Note that the Native instructions are incomplete, in a sense that they miss instructions needed for adding audio/video support to Tox. You also might stumble upon some unknown MinGW+msys issues while trying to build it.
MinGW will install an "MinGW shell" (you should get a shortcut for it), make sure to perform all operations (i.e., generating/running configure script, compiling, etc.) from the MinGW shell.
You can also use a precompiled win32 binary of libsodium, however you will have to place the files in places where they can be found, i.e., dll's go to /bin headers to /include and libraries to /lib directories in your MinGW shell.
Next, install ProjectTox-Core library, should either clone this repo by using git, or just download a [zip of current Master branch](https://github.com/irungentoo/ProjectTox-Core/archive/master.zip) and extract it somewhere.
Assuming that you now have the sources in the ProjectTox-Core directory:
