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openSUSE 安装compass,mkmf.rb can't find,checking for ffi.h...extconf.rb failed
安装compass时，提示
Fetching: sass-3.4.23.gem (100%)Successfully installed sass-3.4.23Fetching: ffi-1.9.18.gem (100%)Building native extensions. This could take a while...ERROR: Error installing compass: ERROR: Failed to build gem native extension. current directory: /usr/lib64/ruby/gems/2.1.0/gems/ffi-1.9.18/ext/ffi_c/usr/bin/ruby.ruby2.1 -r ./siteconf20170501-19647-33n3uw.rb extconf.rbmkmf.rb can‘t find header files for ruby at /usr/lib64/ruby/include/ruby.hextconf failed, exit code 1Gem files will remain installed in /usr/lib64/ruby/gems/2.1.0/gems/ffi-1.9.18 for inspection.Results logged to /usr/lib64/ruby/gems/2.1.0/extensions/x86_64-linux/2.1.0/ffi-1.9.18/gem_make.out
找资料有说明是缺少mkmf,而mkmf是存在于ruby dev开发包中的，需要安装 ruby1.9.1-dev版本，可是笔者的电脑中ruby的版本是:ruby 2.1.9p490 (2016-03-30 revision 54437) [x86_64-linux-gnu]
可以通过zypper search命令查看相关的ruby安装包
运行: zypper search ruby*
会列出和ruby相关的软件包，在列表中有:
i | ruby2.1 | An In-> | 软件包 | ruby2.1 | An In-> | 源代码包 | ruby2.1-devel | Devel-> | 软件包
-dev和-devel 后缀应该都属于开发包,所以笔者运行了: zypper in ruby2.1-devel
运行的结果是:新安装ruby2.1-devel 和升级libruby2_1-2_1 ruby2.1 ruby2.1-stdlib 3个软件包
再次尝试运行: gem install compass,提示
ERROR: Error installing compass: ERROR: Failed to build gem native extension. current directory: /usr/lib64/ruby/gems/2.1.0/gems/ffi-1.9.18/ext/ffi_c/usr/bin/ruby.ruby2.1 -r ./siteconf20170501-19967-1fry11r.rb extconf.rbchecking for ffi.h... *** extconf.rb failed ***Could not create Makefile due to some reason, probably lack of necessarylibraries and/or headers. Check the mkmf.log file for more details. You mayneed configuration options.
这提示的是缺少 ffi
在上面执行的:zypper serch ruby* 命令的搜索结果中有:
| ruby2.1-rubygem-fastercsv-testsuite | Test -> | 软件包 | ruby2.1-rubygem-ffi | Ruby -> | 软件包 | ruby2.1-rubygem-ffi-doc | RDoc -> | 软件包
运行: zypper in ruby2.1-rubygem-ffi
最后执行: gem install compass之后，安装成功，暂时还不能直接运行compass命令，因为执行时，提示
If ‘compass‘ is not a typo you can use command-not-found to lookup the package that contains it, like this: cnf compass
参考资料:
- zypper命令使用示例
- linux下各种*-dev或*-devel包的作用
- 安装compass时出现ERROR: Failed to build gem native extension...... -- mkmf (Load Error)解决办法
openSUSE 安装compass,mkmf.rb can't find,checking for ffi.h...extconf.rb failed
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