构建原生扩展。这可能需要一段时间...
ERROR: Error installing xapian-core:
ERROR: Failed to build gem native extension.
rake1.8 RUBYARCHDIR=/usr/lib/ruby/gems/1.8/gems/xapian-core-1.2.7.1/lib RUBYLIBDIR=/usr/lib/ruby/gems/1.8/gems/xapian-core-1.2.7.1/lib
sh: rake1.8: not found
Gem 文件将继续安装以/usr/lib/ruby/gems/1.8/gems/xapian-core-1.2.7.1供检查。结果记录到/usr/lib/ruby/gems/1.8/gems/xapian-core-1.2.7.1/ext/gem_make.out
这是 gem makeout 文件：
rake1.8 RUBYARCHDIR=/usr/lib/ruby/gems/1.8/gems/xapian-core-1.2.7.1/lib RUBYLIBDIR=/usr/lib/ruby/gems/1.8/gems/xapian-core-1.2.7.1/lib
sh: rake1.8: not found