如何继续宝石安装过程

我试图安装需要编译pHash库的phashion。 pHash取决于libjpeg。 gem在Linux上的安装很好，但是我的Mac（Lion 10.7.3）有一些问题：如何继续宝石安装过程

我通过MacPorts安装了libjpeg，但是当我运行gem install phashion时，进程失败，抱怨缺少libjpeg。

这是错误我得到：

gcc -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin11.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -fno-common -I/Library/Ruby/Gems/1.8/gems/phashion-1.0.4/ext/phashion_ext/include -L/Library/Ruby/Gems/1.8/gems/phashion-1.0.4/ext/phashion_ext/lib -x c++ -c phashion_ext.c 
cc -arch i386 -arch x86_64 -pipe -bundle -undefined dynamic_lookup -o phashion_ext.bundle phashion_ext.o -L. -L/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib -L/Library/Ruby/Gems/1.8/gems/phashion-1.0.4/ext/phashion_ext/lib -L/Library/Ruby/Gems/1.8/gems/phashion-1.0.4/ext/phashion_ext/lib -L. -arch i386 -arch x86_64  -lruby -lpthread -lpHash_gem -lstdc++ -ljpeg 
ld: library not found for -ljpeg 
collect2: ld returned 1 exit status 
ld: library not found for -ljpeg 
collect2: ld returned 1 exit status 
lipo: can't open input file: /var/tmp//ccCwUAM1.out (No such file or directory) 
make: *** [phashion_ext.bundle] Error 1 


Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/phashion-1.0.4 for inspection. 
Results logged to /Library/Ruby/Gems/1.8/gems/phashion-1.0.4/ext/phashion_ext/gem_make.out

的libjpeg在于/opt/local/lib。所以我看了一下gem的makefile并将库路径添加到ldflags中。现在运行良好，图书馆似乎编译。

现在是什么？当我再次运行gem install phashion时，我的makefile被覆盖。

那么，如何在不损失对gem的更改的情况下再次启动安装过程？

PS：我试图改变成宝石的目录，并运行rake，但它失败，出现此错误消息：

WARNING: rake-compiler found compiled files in 'ext/phashion_ext' directory. Please remove them. 
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby -I"lib:lib:test" -I"/Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib" "/Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb" "test/**/test_*.rb" 
/Library/Ruby/Site/1.8/rubygems/custom_require.rb:29:in `gem_original_require': no such file to load -- phashion_ext (LoadError) 
    from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:29:in `require' 
    from ./lib/phashion.rb:33 
    from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:29:in `gem_original_require' 
    from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:29:in `require' 
    from ./test/helper.rb:3 
    from /Library/Ruby/Gems/1.8/gems/phashion-1.0.4/test/test_phashion.rb:1:in `require' 
    from /Library/Ruby/Gems/1.8/gems/phashion-1.0.4/test/test_phashion.rb:1 
    from /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:10:in `require' 
    from /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:10 
    from /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:9:in `each' 
    from /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:9 
    from /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:4:in `select' 
    from /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:4 
rake aborted!

来源

2012-04-14 Wukerplank

我能够安装在我的Mac这一优良无需任何额外的库。我的建议是：'gem uninstall phasion'然后'gem install phasion' ...你是否收到构建本机扩展的消息。这可能需要一段时间...？ – hagope 2012-04-14 20:27:16

是的，删除了宝石，并重新安装，但没有运气。我用我得到的错误更新了我的问题，并添加了我的操作系统版本（Lion 10.7.3）。你是否必须安装libjpeg，并使用MacPorts（或Brew）？ – Wukerplank 2012-04-15 05:31:18

您是否安装了最新的XCode？在Xcode

安装了XCode 4.4
安装的命令行工具4.4 Preferences对话框

来源

2013-01-04 06:53:28 kristianp

是的，一切都在原地。 – Wukerplank 2013-01-04 08:56:17

如何继续宝石安装过程

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