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Shane.D
Asked: 2018-06-11 00:56:12 +0800 CST

Ruby gem 安装失败

  • 772

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？

ruby

2 个回答

  1. Best Answer

    您需要安装包含标头AL/al.h 的包 - 使用 packages.ubuntu.com和sudo apt install libopenal-dev.

    但是如果需要gosu Gem 编译成功，光靠安装libopenal-dev是不够的。

    您需要查阅官方文档来安装其他构建依赖项：

    # Dependencies for both C++ and Ruby
sudo apt-get install build-essential libsdl2-dev libsdl2-ttf-dev libpango1.0-dev \
                     libgl1-mesa-dev libopenal-dev libsndfile-dev libmpg123-dev \
                     libgmp-dev

# To install Ruby itself - if you are using rvm or rbenv, please skip this step
sudo apt-get install ruby-dev

# If you are using a Ruby version manager (i.e. rvm or rbenv)
gem install gosu
# If you are using system Ruby, you will need "sudo" to install Ruby libraries (gems)
sudo gem install gosu
    • 3

  2. 您可以通过运行以下命令来安装软件包

    sudo apt install libopenal-dev

    在 bash 命令中的参数前有一个连字符 ( -) 被认为是在将选项传递给命令。

    你应该弄清楚某个头文件的包名是什么，然后用apt安装它。

    你运行的命令

    sudo apt install -lopenal

    被解释为如下

    sudo apt install -l -o -p -e -n -a -l

    一些提示

    • 包名从不以连字符开头。
    • 大多数情况下（如果不是总是），-dev当您只需要头文件时，包名称会带有后缀。
    • 库包通常（但不总是）以lib.
    • 软件包名称并不总是与软件名称完全相同。
    • 你可以搜索一个包apt search <keyword>
    • 我讨厌成为“去谷歌”的人，但在这种情况下，当官方文档没有提到它时，谷歌或任何其他搜索引擎可以真正帮助找出某个 gem/包的依赖关系。
    • 2

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