Ruby 2.1和Nokogiri安装错误？
我知道这是一个在这里已经“解决”了很多次的问题，但是我已经尝试了所有的解决方案，仍然无法让它发挥作用。 这是我的错误：
22-01-14 17:57:56> gem install nokogiri Building native extensions. This could take a while... ERROR: Error installing nokogiri: ERROR: Failed to build gem native extension. /Users/josh/.rvm/rubies/ruby-2.1.0/bin/ruby extconf.rb Extracting libxml2-2.8.0.tar.gz into tmp//ports/libxml2/2.8.0... OK Running 'configure' for libxml2 2.8.0... ERROR, review 'tmp//ports/libxml2/2.8.0/configure.log' to see what happened. *** 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 --without-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=/Users/josh/.rvm/rubies/ruby-2.1.0/bin/ruby /Users/josh/.rvm/gems/ruby-2.1.0/gems/mini_portile-0.5.2/lib/mini_portile.rb:265:in `block in execute': Failed to complete configure task (RuntimeError) from /Users/josh/.rvm/gems/ruby-2.1.0/gems/mini_portile-0.5.2/lib/mini_portile.rb:257:in `chdir' from /Users/josh/.rvm/gems/ruby-2.1.0/gems/mini_portile-0.5.2/lib/mini_portile.rb:257:in `execute' from /Users/josh/.rvm/gems/ruby-2.1.0/gems/mini_portile-0.5.2/lib/mini_portile.rb:65:in `configure' from /Users/josh/.rvm/gems/ruby-2.1.0/gems/mini_portile-0.5.2/lib/mini_portile.rb:108:in `cook' from extconf.rb:101:in `block in ' from extconf.rb:119:in `call' from extconf.rb:119:in `block in ' from extconf.rb:109:in `tap' from extconf.rb:109:in `' extconf failed, exit code 1 Gem files will remain installed in /Users/josh/.rvm/gems/ruby-2.1.0/gems/nokogiri-1.6.1 for inspection. Results logged to /Users/josh/.rvm/gems/ruby-2.1.0/extensions/x86_64-darwin-12/2.1.0-static/nokogiri-1.6.1/gem_make.out 当我通过brew安装libxml2时：
22-01-14 17:57:56> brew list ab cmake freetype gettext jpeg libksba libvo-aacenc lzlib openjpeg proj speex xvid apple-gcc42 elasticsearch freexl giflib json-c liblwgeom libvorbis memcached openssl qt sqlite xz apr faac frei0r git lame libogg libvpx mongodb opus readline texi2html yasm apr-util fdk-aac fribidi gpp libass libpng libxml2 mysql orc redis theora autoconf ffmpeg gd graphviz libevent libspatialite libxslt node pcre rtmpdump ttfautohint automake fontconfig gdal grep libgeotiff libtiff libyaml openconnect phantomjs schroedinger wkhtmltopdf cloc fontforge geos imagemagick libgpg-error libtool little-cms2 opencore-amr pkg-config sdl x264 22-01-14 17:57:56> brew list libxml2 /usr/local/Cellar/libxml2/2.8.0/bin/xmllint /usr/local/Cellar/libxml2/2.8.0/bin/xmlcatalog /usr/local/Cellar/libxml2/2.8.0/bin/xml2-config /usr/local/Cellar/libxml2/2.8.0/include/libxml2/ (47 files) /usr/local/Cellar/libxml2/2.8.0/lib/libxml2.2.dylib /usr/local/Cellar/libxml2/2.8.0/lib/pkgconfig/libxml-2.0.pc /usr/local/Cellar/libxml2/2.8.0/lib/ (3 other files) /usr/local/Cellar/libxml2/2.8.0/share/aclocal/libxml.m4 /usr/local/Cellar/libxml2/2.8.0/share/doc/ (121 files) /usr/local/Cellar/libxml2/2.8.0/share/gtk-doc/ (55 files) /usr/local/Cellar/libxml2/2.8.0/share/man/ (4 files)
和RVM：
22-01-14 17:57:56> rvm list rvm rubies =* ruby-2.1.0 [ x86_64 ] # => - current # =* - current && default # * - default
和GCC：
22-01-14 17:57:56> gcc --version Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1 Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn) Target: x86_64-apple-darwin13.0.2 Thread model: posix
我已尝试过这个和其他线程中的所有内容：“ 在Ruby 2.0.0p353（基于rvm的安装）下安装Nokogiri 1.6.1失败（OSX Mavericks）？ ”
我甚至没有在我的Gemfile中定义Nokogiri。
好的，我找到了configure.log文件：
1 checking build system type... i386-apple-darwin13.0.2 2 checking host system type... i386-apple-darwin13.0.2 3 checking for a BSD-compatible install... /usr/bin/install -c 4 checking whether build environment is sane... yes 5 checking for a thread-safe mkdir -p... ./install-sh -c -d 6 checking for gawk... no 7 checking for mawk... no 8 checking for nawk... no 9 checking for awk... awk 10 checking whether make sets $(MAKE)... yes 11 checking for gcc... gcc-4.2.1 12 checking whether the C compiler works... no 13 configure: error: in `/Users/josh/.rvm/gems/ruby-2.1.0/gems/nokogiri-1.6.1/ext/nokogiri/tmp/ports/libxml2/2.8.0/libxml2-2.8.0': 14 configure: error: C compiler cannot create executables 15 See `config.log' for more details
在config.log中我发现：
83 configure:3326: checking for C compiler version 84 configure:3335: gcc-4.2.1 --version >&5 85 configure: line 3337: gcc-4.2.1: command not found 86 configure:3346: $? = 127 87 configure:3335: gcc-4.2.1 -v >&5 88 configure: line 3337: gcc-4.2.1: command not found 89 configure:3346: $? = 127 90 configure:3335: gcc-4.2.1 -V >&5 91 configure: line 3337: gcc-4.2.1: command not found 92 configure:3346: $? = 127 93 configure:3335: gcc-4.2.1 -qversion >&5 94 configure: line 3337: gcc-4.2.1: command not found 95 configure:3346: $? = 127 96 configure:3366: checking whether the C compiler works 97 configure:3388: gcc-4.2.1 conftest.c >&5 98 configure: line 3390: gcc-4.2.1: command not found
原来我没有正确引用C编译器。 在我的“.bash_profile”中，我有：
export CC=gcc-4.2.1
我用以下代替：
export CC=gcc