sudo apt-get install libsdl2-dev
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libsdl2-dev : Depends: libasound2-dev but it is not going to be installed
               Depends: libegl1-mesa-dev but it is not going to be installed
               Depends: libgl1-mesa-dev but it is not going to be installed
               Depends: libgles2-mesa-dev but it is not going to be installed
               Depends: libglu1-mesa-dev but it is not going to be installed
               Depends: libpulse-dev but it is not going to be installed
               Depends: libsdl2-2.0-0 (= 2.0.8+dfsg1-1ubuntu1) but 2.0.8+dfsg1-1ubuntu1.18.04.1 is to be installed
               Depends: libudev-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

解决方法

使用 aptitude 安装

sudo aptitude install myNewPackage

[参考]（https://askubuntu.com/questions/363200/e-unable-to-correct-problems-you-have-held-broken-packages/451078#451078
）

GitHub 加速计划 / sd / SDL
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Simple Directmedia Layer
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