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文件将保留在/usr/lib/ruby/gems/1.8/gems/xapian-core-1.2.7.1中以供检查。
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