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在Macbook Pro上使用OSX 10.8.4，包括自制軟件，xcode（帶命令行工具）和libffi。無法通過rvm bundle install安裝ffi 1.9.0 - OSX 10.8.4
我已經安裝了rvm和ruby-1.9.3-p448並且有一個名爲omega.ecoop的gemset。有一個gemfile列出了這個項目所需的寶石。但是，在運行捆綁檢查後，我無法安裝它們：
Bundler can't satisfy your Gemfile's dependencies.
這是正確的，因爲它們未安裝。於是我就用：
bundle install
產生如下：
Sams-MacBook-Pro:ecoop Sam$ bundle install
Fetching gem metadata from https://rubygems.org/..........
Fetching gem metadata from https://rubygems.org/..
Resolving dependencies...
Using addressable (2.3.5)
Using chunky_png (1.2.8)
Using fssm (0.2.10)
Using sass (3.2.10)
Using compass (0.12.2)
Using breakpoint (2.0.6)
Using coderay (1.0.9)
Using compass-blend-modes (0.0.2)
Using color-schemer (0.2.5)
Using compass-normalize (1.4.3)
Using compass-rgbapng (0.2.1)
Using compass-validator (3.0.1)
Using css_parser (1.3.5)
Using eventmachine (1.0.3)
Using http_parser.rb (0.5.3)
Using em-websocket (0.5.0)
Installing ffi (1.9.0)
一切正常，直到：
Installing ffi (1.9.0)
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/Users/Sam/.rvm/rubies/ruby-1.9.3-p448/bin/ruby extconf.rb
checking for ffi.h... no
checking for ffi.h in /usr/local/include,/usr/include/ffi... no
checking for rb_thread_blocking_region()... yes
checking for rb_thread_call_with_gvl()... yes
checking for rb_thread_call_without_gvl()... yes
checking for ffi_prep_cif_var()... no
creating extconf.h
creating Makefile
make
mkdir -p "/Users/Sam/.rvm/gems/[email protected]/gems/ffi-1.9.0/ext/ffi_c"/libffi-x86_64; (if [ ! -f "/Users/Sam/.rvm/gems/[email protected]/gems/ffi-1.9.0/ext/ffi_c"/libffi-x86_64/Makefile ]; then echo "Configuring libffi for x86_64"; cd "/Users/Sam/.rvm/gems/[email protected]/gems/ffi-1.9.0/ext/ffi_c"/libffi-x86_64 && env CC=" gcc-4.6" CFLAGS="-arch x86_64 " LDFLAGS="-arch x86_64" "/Users/Sam/.rvm/gems/[email protected]/gems/ffi-1.9.0/ext/ffi_c/libffi"/configure --disable-static --with-pic=yes --disable-dependency-tracking --host=x86_64-apple-darwin > /dev/null; fi); env MACOSX_DEPLOYMENT_TARGET=10.4 make -C "/Users/Sam/.rvm/gems/[email protected]/gems/ffi-1.9.0/ext/ffi_c"/libffi-x86_64
Configuring libffi for x86_64
configure: WARNING: if you wanted to set the --build type, don't use --host.
If a cross compiler is detected then cross compile mode will be used
configure: error: in `/Users/Sam/.rvm/gems/[email protected]/gems/ffi-1.9.0/ext/ffi_c/libffi-x86_64':
configure: error: C compiler cannot create executables
See `config.log' for more details
make[1]: *** No targets specified and no makefile found. Stop.
make: *** ["/Users/Sam/.rvm/gems/[email protected]/gems/ffi-1.9.0/ext/ffi_c"/libffi-x86_64/.libs/libffi_convenience.a] Error 2
Gem files will remain installed in /Users/Sam/.rvm/gems/[email protected]/gems/ffi-1.9.0 for inspection.
Results logged to /Users/Sam/.rvm/gems/[email protected]/gems/ffi-1.9.0/ext/ffi_c/gem_make.out
An error occurred while installing ffi (1.9.0), and Bundler cannot continue.
Make sure that `gem install ffi -v '1.9.0'` succeeds before bundling.
此命令不工作，要麼（創業板安裝FFI -v「1.9 .0'），我得到了同樣的錯誤。我想：
sudo ln -s /usr/bin/gcc /usr/bin/gcc-4.2
我已閱讀：
can't setup ruby environment - installing fii gem error
gem install ffi -v '1.1.5' osx 10.8
雖然沒有運氣。我跟着這個指南設置RVM：
http://portertech.ca/2010/03/26/homebrew--rvm--awesome/
如果這會有所幫助，FFI-1.0.11安裝不順利，FFF-1.9.0將無法安裝（http://rubygems.org/gems/ffi/versions）。
/Users/Sam/.rvm/gems/[email protected]/gems/ffi-1.0.11 (no problem)
我只想使用命令行（而不是珠寶盒GUI）來學習一些新技能，但相當困難。任何幫助將不勝感激，謝謝。
編輯
所以我嘗試了不同的方法，我想也許這是紅寶石的版本是不兼容：
rvm install 2.0.0
然後使用Ruby 2.0.0
創造寶石此時rvm use [email protected] --create
檢查它是否存在並選擇爲當前gemset（準備安裝一些寶石）
rvm gemset list
gemsets for ruby-2.0.0-p247 (found in /Users/Sam/.rvm/gems/ruby-2.0.0-p247)
(default)
global
=> omega.ecoop
是的一切都好。嘗試並安裝
bundle install
Sams-MacBook-Pro:ecoop Sam$ bundle install
Fetching gem metadata from https://rubygems.org/..........
Fetching gem metadata from https://rubygems.org/..
Resolving dependencies...
Installing addressable (2.3.5)
Installing chunky_png (1.2.8)
Installing fssm (0.2.10)
Installing sass (3.2.10)
Installing compass (0.12.2)
Installing breakpoint (2.0.6)
Installing coderay (1.0.9)
Installing compass-blend-modes (0.0.2)
Installing color-schemer (0.2.5)
Installing compass-normalize (1.4.3)
Installing compass-rgbapng (0.2.1)
Installing compass-validator (3.0.1)
Installing css_parser (1.3.5)
Installing eventmachine (1.0.3)
Installing http_parser.rb (0.5.3)
Installing em-websocket (0.5.0)
Installing ffi (1.9.0)
Installing formatador (0.2.4)
Installing rb-fsevent (0.9.3)
Installing rb-inotify (0.9.1)
Installing rb-kqueue (0.2.0)
Installing listen (1.3.0)
Installing lumberjack (1.0.4)
Installing method_source (0.8.2)
Installing slop (3.4.6)
Installing pry (0.9.12.2)
Installing thor (0.18.1)
Installing guard (1.8.2)
Installing guard-compass (0.0.8)
Installing multi_json (1.7.9)
Installing guard-livereload (1.4.0)
Installing guard-shell (0.5.1)
Installing oily_png (1.1.0)
Installing rb-fchange (0.0.6)
Installing sass-globbing (1.1.0)
Installing sassy-strings (1.0.0)
Installing singularitygs (1.1.2)
Installing susy (1.0.9)
Installing toolkit (1.3.7)
Installing yajl-ruby (1.1.0)
Using bundler (1.3.5)
Your bundle is complete!
這次沒有'安裝ffi（1.9.0）'的問題。然後，我刪除了紅寶石1.9.3，因爲此刻我只將它用於指南針/ sass/susy，如果2.0.0有效，那就這樣吧。
Sams-MacBook-Pro:~ Sam$ ruby -v
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-darwin12.3.0]
Sams-MacBook-Pro:~ Sam$ cd drupal/ecoop/sites/default/themes/ecoop/
ruby-1.9.3-p448 is not installed.
To install do: 'rvm install ruby-1.9.3-p448' <<<<<< no thanks
Sams-MacBook-Pro:ecoop Sam$ compass watch
>>> Change detected at 12:35:09 to: reset.scss
overwrite css/reset.css
overwrite css/styles.css
>>> Compass is watching for changes. Press Ctrl-C to Stop.
現在適合我的項目。不確定使用更新版本的紅寶石有什麼後果，但已經失去了足夠的時間，需要做一些設計。很顯然，這不會幫助需要1.9.3的人，因此ffi不會安裝的原始查詢尚未得到解決。
我在另一臺機器上遇到同樣的問題。我的一臺機器工作正常，第二臺機器基本上以相同的方式設置。真的只是想堅持1.9.3，因爲我試圖將其複製到其他人機器上。甚至試圖在它自己的結果中安裝ffi gem的結果與「無法構建本機擴展」相同。所有的Xcode和命令行工具更新..自制更新，等等等。 – humanaut