無法安裝Ruby AMQP Gem

Question

當前，我已經在Ubuntu 11.10上安裝了Ruby（紅寶石1.9.3p194（2012-04-20版本35410））。 想要使用“ sudo gem install amqp”安裝AMQP gem。 但是它失敗，並顯示以下錯誤消息：

    Building native extensions.  This could take a while...
    ERROR:  Error installing amqp:
    ERROR: Failed to build gem native extension.

    /usr/local/bin/ruby extconf.rb
    checking for main() in -lssl... no
    checking for rb_trap_immediate in ruby.h,rubysig.h... no
    checking for rb_thread_blocking_region()... yes
    checking for inotify_init() in sys/inotify.h... yes
    checking for writev() in sys/uio.h... yes
    checking for rb_thread_check_ints()... yes
    checking for rb_time_new()... yes
    checking for sys/event.h... no
    checking for epoll_create() in sys/epoll.h... yes
    creating Makefile

    make
    compiling ed.cpp
    make: g++: Command not found
    make: *** [ed.o] Error 127


    Gem files will remain installed in /usr/local/lib/ruby/gems/1.9.1/gems/eventmachine-1.0.0 for inspection.
    Results logged to /usr/local/lib/ruby/gems/1.9.1/gems/eventmachine-1.0.0/ext/gem_make.out

如果有人可以幫助我，將不勝感激。 謝謝。

Answer 1

為了編譯本機擴展，您需要一個編譯器。 只需使用以下命令安裝g ++和朋友：

sudo apt-get install build-essential

然后再試一次。