運行時在OS X Mountain Lion上安裝ffi gem的錯誤

Question

我想在我的OS X Mountain Lion上安裝ffi gem（所以我可以運行Octopress）並且遇到錯誤。

運行gem install install ffi -v '1.0.11'給出了下面的輸出：

/chetanshenoy.rvm/rubies/ruby-1.9.3-p194/bin/ruby extconf.rb 
checking for ffi.h... no 
checking for ffi.h in /usr/local/include... no 
checking for rb_thread_blocking_region()... yes 
checking for ruby_native_thread_p()... yes 
checking for rb_thread_call_with_gvl()... yes 
creating extconf.h 
creating Makefile 

make 
Configuring libffi 
/Volumes/Secondary - HDD/Users/chetanshenoy/.rvm/gems/ruby-1.9.3-p194/gems/ffi-1.0.11/ext/ffi_c/libffi/configure: line 642: test: too many arguments 
/Volumes/Secondary - HDD/Users/chetanshenoy/.rvm/gems/ruby-1.9.3-p194/gems/ffi-1.0.11/ext/ffi_c/libffi/configure: line 642: test: too many arguments 
configure: WARNING: Libtool does not cope well with whitespace in `pwd` 
cd "/Volumes/Secondary - HDD/Users/chetanshenoy/.rvm/gems/ruby-1.9.3-p194/gems/ffi-1.0.11/ext/ffi_c/libffi" && make 
make "AR_FLAGS=" "CC_FOR_BUILD=" "CFLAGS=" "CXXFLAGS=" "CFLAGS_FOR_BUILD=" "CFLAGS_FOR_TARGET=" "INSTALL=/usr/bin/install -c" "INSTALL_DATA=/usr/bin/install -c -m 644" "INSTALL_PROGRAM=/usr/bin/install -c" "INSTALL_SCRIPT=/usr/bin/install -c" "JC1FLAGS=" "LDFLAGS=" "LIBCFLAGS=" "LIBCFLAGS_FOR_TARGET=" "MAKE=make" "MAKEINFO=/bin/sh "/Volumes/Secondary - HDD/Users/chetanshenoy/.rvm/gems/ruby-1.9.3-p194/gems/ffi-1.0.11/ext/ffi_c/libffi/missing" --run makeinfo " "PICFLAG=" "PICFLAG_FOR_TARGET=" "RUNTESTFLAGS=" "SHELL=/bin/sh" "exec_prefix=/usr/local" "infodir=/usr/local/share/info" "libdir=/usr/local/lib" "prefix=/usr/local" "AR=ar" "AS=as" "CC=gcc-4.2" "CXX=c++" "LD=ld" "NM=/usr/bin/nm" "RANLIB=ranlib" "DESTDIR=" all-recursive 
make[2]: *** No rule to make target `HDD/Users/chetanshenoy/.rvm/gems/ruby-1.9.3-p194/gems/ffi-1.0.11/ext/ffi_c/libffi/missing --run makeinfo '. Stop. 
make[1]: *** [all] Error 2 
make: *** ["/Volumes/Secondary] Error 2 

任何幫助表示讚賞。

Answer 1

它看起來像ffi寶石不喜歡在路徑中的空間，因爲你已經在config已經檢查它不是使用這個路徑的紅寶石，必須是在編譯寶石的過程中的東西。

爲了讓編譯你需要擺脫空間的，有辦法少：在不包含空格的路徑

1. 重裝RVM，首先你需要在~/.rvmrc改變rvm_path的位置，這就是「安全「的選擇，
2. 將rvm直接移動到rvm_path指向的路徑 - sudo rm -rf /chetanshenoy.rvm && sudo mv "/Volumes/Secondary - HDD/Users/chetanshenoy/.rvm" /chetanshenoy.rvm - 這應該工作，因爲ruby沒有主目錄的記錄，但它不能確定帶空格的路徑是否保存在任何位置 - 以防萬一的問題使用解決方案1.

Answer 2

如Issue with installing ImageMagick and rmagick on Mountain Lion所述，ffi似乎被配置爲查找'gcc-4.2'，所以一旦我更新了我的Apple command line tools（我可能不需要這樣做），我創建了一個符號鏈接來使ffi安裝配置幸福：

sudo ln -s /usr/bin/gcc /usr/bin/gcc-4.2