无法在Linux中的Ruby中安装Gosu库

Question

尝试在Ubuntu 13.10上安装gosu时出现此错误

Fetching gem metadata from https://rubygems.org/.........
Fetching version metadata from https://rubygems.org/..
Resolving dependencies...
Using diff-lcs 1.2.5

Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /usr/bin/ruby1.9.1 extconf.rb 
The Gosu gem requires some libraries to be installed system-wide.
See the following site for a list:
https://github.com/jlnr/gosu/wiki/Getting-Started-on-Linux

checking for TTF_RenderUTF8_Blended() in -lSDL2_ttf... yes
checking for SDL_ttf.h... yes
checking for FreeImage_ConvertFromRawBits() in -lfreeimage... yes
checking for FreeImage.h... yes
checking for main() in -lopenal... no
creating Makefile

make
compiling gosu_wrap.cxx
In file included from /usr/include/ruby-1.9.1/ruby.h:32:0,
                 from gosu_wrap.cxx:850:
gosu_wrap.cxx: In function ‘void Gosu::loadBitmap(Gosu::Bitmap&, VALUE)’:
/usr/include/ruby-1.9.1/ruby/ruby.h:675:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      RSTRING(str)->as.heap.len)
                               ^

我尝试从https://github.com/jlnr/gosu/wiki/Getting-Started-on-Linux添加所有库，但是仍然出现上述错误。 谁能帮我这个忙吗？

编辑 ：当我检查已安装的软件包的状态为

 dpkg -s gcc libsdl2-dev libsdl2-ttf-dev libpango1.0-dev libgl1-mesa-dev libfreeimage-dev libopenal-dev libsndfile-dev | grep Status

我的状态如下：

Status: install ok installed
dpkg-query: package 'libsdl2-ttf-dev' is not installed and no information is available
Status: install ok installed
Status: install ok installed
Status: install ok installed
dpkg-query: package 'libopenal-dev' is not installed and no information is available
Status: install ok installed
dpkg-query: package 'libsndfile-dev' is not installed and no information is available
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.

因此，未安装libsdl2-ttf-dev和libsndfile-dev。 我尝试使用apt-get install安装这些软件包，但无法安装它们，因为它说在任何来源中都找不到这些软件包。

Answer 1

您确定所有依赖项都已正确安装吗？

首先请检查它们：

dpkg -s gcc libsdl2-dev libsdl2-ttf-dev libpango1.0-dev libgl1-mesa-dev libfreeimage-dev libopenal-dev libsndfile-dev | grep Status

然后，您可以轻松检查问题！ 您必须检查安装日志文件：

您可以使用vi，nano或cat，tail ...等编辑器打开文件，我使用过nano

nano /var/lib/gems/*/gems/*/ext/gosu/gem_make.out

移动到文件末尾并检查为什么使脚本停止！ 在此处发布错误，然后我可以帮助您解决问题！