我正在尝试在linux angstrom上的项目中使用memcached gem。
我正在我的ruby项目上进行捆绑安装，它将开始下载并安装所有必需的rubygem。
宝石'eventmachine' 宝石'serialport' 宝石'memcached' 宝石'json' 宝石'activerecord' gem'sqlite3'
但是当memcached加载时我看到了这个错误：
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/usr/local/bin/ruby extconf.rb
checking for sasl/sasl.h... no
Please install SASL to continue. The package is called libsasl2-dev on Ubuntu and cyrus-sasl on Gentoo.
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may
need configuration options.
Provided configuration options:
--with-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/local/bin/ruby
Gem files will remain installed in /usr/local/lib/ruby/gems/2.0.0/gems/memcached-1.7.0 for inspection.
Results logged to /usr/local/lib/ruby/gems/2.0.0/gems/memcached-1.7.0/ext/gem_make.out
在ubuntu我解决了使用：apt-get install libsasl2但是在angstrom上我没有opkg上的libsasl2，实际上opkg install libsasl2失败了。
如何解决？感谢。