OSX-10.9.5和Nokogiri RubyGem 1.6.7.1

Question

我遇到以下情況WRT nokogiri在運行OSX-10.9.5的MacBook Pro中，並且已經安裝了X-Code 6.2以及相關的命令行工具。

ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future 

sudo gem install nokogiri -- --with-xml2-include=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/libxml2 
Building native extensions with: '--with-xml2-include=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/libxml2' 
This could take a while... 
Successfully installed nokogiri-1.6.7.1 
Parsing documentation for nokogiri-1.6.7.1 
Installing ri documentation for nokogiri-1.6.7.1 
Done installing documentation for nokogiri after 13 seconds 
1 gem installed 

然而，緊接其後出現這種情況：

bundle config build.nokogiri --with-xml2-include=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/libxml2 

bundle update 
. . . 
Installing nokogiri 1.6.7.1 (was 1.6.7) with native extensions 

Gem::Ext::BuildError: ERROR: Failed to build gem native extension. 

    /opt/local/bin/ruby2.2 -r ./siteconf20151230-65520-1ws37n2.rb extconf.rb --with-xml2-include=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/libxml2 
checking if the C compiler accepts ... *** 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=/opt/local/bin/$(RUBY_BASE_NAME)2.2 
    --help 
    --clean 
/opt/local/lib/ruby2.2/2.2.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError) 
You have to install development tools first. 
    from /opt/local/lib/ruby2.2/2.2.0/mkmf.rb:571:in `block in try_compile' 
    from /opt/local/lib/ruby2.2/2.2.0/mkmf.rb:522:in `with_werror' 
    from /opt/local/lib/ruby2.2/2.2.0/mkmf.rb:571:in `try_compile' 
    from extconf.rb:80:in `nokogiri_try_compile' 
    from extconf.rb:87:in `block in add_cflags' 
    from /opt/local/lib/ruby2.2/2.2.0/mkmf.rb:619:in `with_cflags' 
    from extconf.rb:86:in `add_cflags' 
    from extconf.rb:336:in `<main>' 

extconf failed, exit code 1 

Gem files will remain installed in /Users/byrnejb/Projects/hll_th/hll_th_proforma/libexec/bundle/lib/gems/nokogiri-1.6.7.1 for inspection. 
Results logged to /Users/byrnejb/Projects/hll_th/hll_th_proforma/libexec/bundle/lib/extensions/x86_64-darwin-13/2.2.0/nokogiri-1.6.7.1/gem_make.out 
. . . 

檢查捆綁的MKMF日誌構建失敗揭示了這一點：

cat .//libexec/bundle/lib/extensions/x86_64-darwin-13/2.2.0/nokogiri-1.6.7.1/mkmf.log 

"/usr/bin/clang -o conftest -I/opt/local/include/ruby-2.2.0/x86_64-darwin13 -I/opt/local/include/ruby-2.2.0/ruby/backward -I/opt/local/include/ruby-2.2.0 -I. -I/opt/local/include -I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT -pipe -Os -fno-common conftest.c -L/opt/local/lib -L. -L/opt/local/lib -L. -L/opt/local/lib -Wl,-headerpad_max_install_names -fstack-protector -L/opt/local/lib -arch x86_64 -lruby.2.2.0 -lpthread -ldl -lobjc " 
dyld: Symbol not found: __cg_jpeg_resync_to_restart 
    Referenced from: /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO 
    Expected in: /opt/local/lib/libJPEG.dylib 
in /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO 
clang: error: unable to locate xcodebuild, please make sure the path to the Xcode folder is set correctly! 
clang: error: You can set the path to the Xcode folder using /usr/bin/xcode-select -switch 
checked program was: 
/* begin */ 
1: #include "ruby.h" 
2: 
3: int main(int argc, char **argv) 
4: { 
5: return 0; 
6: } 
/* end */ 

雖然成功的創業板建設MKMF日誌顯示此：

cat /opt/local/lib/ruby2.2//gems/2.2.0/extensions/x86_64-darwin-13/2.2.0/nokogiri-1.6.7.1/mkmf.log 

"/usr/bin/clang -o conftest -I/opt/local/include/ruby-2.2.0/x86_64-darwin13 -I/opt/local/include/ruby-2.2.0/ruby/backward -I/opt/local/include/ruby-2.2.0 -I. -I/opt/local/include -I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT -pipe -Os -fno-common conftest.c -L/opt/local/lib -L. -L/opt/local/lib -L. -L/opt/local/lib -Wl,-headerpad_max_install_names -fstack-protector -L/opt/local/lib -arch x86_64 -lruby.2.2.0 -lpthread -ldl -lobjc " 
checked program was: 
/* begin */ 
1: #include "ruby.h" 
2: 
3: int main(int argc, char **argv) 
4: { 
5: return 0; 
6: } 
/* end */ 

尋找xcodebuild揭示了這一點：

sudo find/-name xcodebuild 
Password: 
/Applications/Xcode.app/Contents/Developer/usr/bin/ 
/Developer-3.2.6/usr/bin/xcodebuild 
/private/var/root/Library/Caches/xcodebuild 
/usr/bin/xcodebuild 

which xcodebuild 
/usr/bin/xcodebuild 

而且檢查xcode-select -p表明這一點：

xcode-select -p 
/Applications/Xcode.app/Contents/Developer 

尊重dyld的錯誤：

dyld: Symbol not found: __cg_jpeg_resync_to_restart 
    Referenced from: /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO 
    Expected in: /opt/local/lib/libJPEG.dylib 

我覈實，沒有叫DYLD_LIBRARY_PATH環境變量。但是沒有一個/opt/local/lib/libJPEG.dylib。然而，有一個/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/System/Library/Frameworks/ImageIO.framework/Versions/A/Resources/libJPEG.dylib。

有沒有人有任何想法捆綁機構建什麼？

我非常厭倦了這種在OSX上搭建nokogiri的反覆無稽之談。

Answer 1

你的問題似乎類似於https://www.alfresco.com/blogs/developer/2012/12/11/homebrew-share-thumbnails-and-previews-on-os-x/

什麼指定的分辨率可能會重新鏈接的圖像dylib：

$ cd /opt/local/lib 
$ rm libgif.dylib 
$ ln -s path/to/libGIF libGIF.dylib 
$ rm libjpeg.dylib 
$ ln -s path/to/libJPEG libJPEG.dylib 
$ rm libtiff.dylib 
$ ln -s path/to/libTIFF libTIFF.dylib 
$ rm libpng.dylib 
$ ln -s path/to/libPng libPng.dylib