ClassiCube/doc/compile-fixes.md

Visual studio unsupported platform toolset
---------------------
To fix the ```Error MSB8036 The Windows SDK version 5.1 was not found. Install the required version of Windows SDK or change the SDK version in the project property pages or by right-clicking the solution and selecting "Retarget solution"```
* Right click **ClassiCube** project (it's under the *Solution 'ClassiCube'* in the *Solution Explorer* pane)
* Click **Properties**
* Make sure you are in **General** tab under **Configuration Properties**
* You should see a dropdown named **Platform Toolset**. Click on it.
* Change it to one of the toolsets in the list that pops up.
* Click **OK**. You should be able to compile now

![image](https://user-images.githubusercontent.com/6509348/60266950-727e4780-992c-11e9-98fb-85eb34959e93.png)

Common compilation errors
---------------------
#### Undefined reference to 'clock_gettime'
Add ```-lrt``` when compiling. Occurs when using glibc versions before 2.17.

#### fatal error: execinfo.h: No such file or directory
Define `CC_BACKTRACE_BUILTIN` when compiling. Usually occurs when using musl.

#### Undefined reference to 'backtrace'
Define `CC_BACKTRACE_BUILTIN` when compiling. Usually occurs when using musl.

Webclient patches
---------------------
#### Mouse scrolling not properly prevented
With recent chrome/firefox versions, page is still scrolled and console is spammed with\
```"[Intervention] Unable to preventDefault inside passive event listener due to target being treated as passive."```

You need to to register events as a passive handler. Look for something like:
```
eventHandler.target.addEventListener(eventHandler.eventTypeString, jsEventHandler, eventHandler.useCapture);
```
and change to 
```
eventHandler.target.addEventListener(eventHandler.eventTypeString, jsEventHandler, { useCapture: eventHandler.useCapture, passive: false });
```