Shane.D's questions

我试图安装gosuRyby gem

$ sudo gem install gosu

Building native extensions. This could take a while...

ERROR:  Error installing gosu:

    ERROR: Failed to build gem native extension.

    current directory: /var/lib/gems/2.5.0/gems/gosu-0.13.3/ext/gosu
/usr/bin/ruby2.5 -r ./siteconf20180610-10446-laumk5.rb extconf.rb
The Gosu gem requires some libraries to be installed system-wide.
See the following site for a list:

https://github.com/gosu/gosu/wiki/Getting-Started-on-Linux

checking for TTF_RenderUTF8_Blended() in -lSDL2_ttf... yes

checking for SDL_ttf.h... yes

checking for -lopenal... no

creating Makefile

current directory: /var/lib/gems/2.5.0/gems/gosu-0.13.3/ext/gosu

make "DESTDIR=" clean

current directory: /var/lib/gems/2.5.0/gems/gosu-0.13.3/ext/gosu

make "DESTDIR="

compiling ../../src/Audio.cpp

In file included from ../../src/Audio.cpp:1:0:

../../src/AudioImpl.hpp:9:10: fatal error: AL/al.h: No such file or directory

 #include <AL/al.h>

          ^~~~~~~~~

compilation terminated.

Makefile:234: recipe for target 'Audio.o' failed

make: *** [Audio.o] Error 1

make failed, exit code 2

Gem files will remain installed in /var/lib/gems/2.5.0/gems/gosu-0.13.3 for inspection.

Results logged to /var/lib/gems/2.5.0/extensions/x86_64-linux/2.5.0/gosu-

0.13.3/gem_make.out

shane@shane-HP-x2-Detachable-10-p0XX:~$ sudo apt-get install -lopenal

E: Command line option 'l' [from -lopenal] is not understood in combination 
with the other options.

我注意到问题出在 -lopenal 上，但是如何安装或获取它才能正确下载

编辑： -lopenal 现在有一个是的感谢 N0rbert。但是现在我看到它在屏幕下方显示“致命错误”，那么我该如何解决这个问题？

好的，所以，我在 Ubuntu 版本 16.04 LTS 上安装了 Ubuntu-Restricted-Extras。我有所有的更新。我使用终端安装它，因为我在 Ubuntu Software 中找不到它。但是我想知道的是Ubuntu软件中心，Ubuntu软件和Ubuntu软件中心是一回事吗？因为如果我的有问题，我根本无法安装 preload 之类的东西，并且 flash 播放器将无法工作（它是否已被删除？）。在 Ubuntu 软件应用程序中，几乎没有任何程序，而且，也没有像预加载或 Ubuntu 限制附加功能这样的程序。帮帮我，我要疯了。