Question

我试图安装需要编译pHash库的phashion。 pHash取决于libjpeg。 gem在Linux机器上安装得很好，但我的Mac（Lion 10.7.3）上有一些问题：

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

这是我得到的错误：

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

libjpeg位于/opt/local/lib。所以我查看了gem的makefile并将库路径添加到了ldflags。现在运行正常，库似乎编译。

现在怎么办？当我再次运行gem install phashion时，我的makefile会被覆盖。

那么如何在不丢失对gem的更改的情况下再次启动安装过程呢？

PS：我已尝试更改到gem的目录并运行rake，但它失败并显示以下错误消息：

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!

Answer 1

您安装了最新的XCode吗？

安装XCode 4.4
从XCode 4.4首选项对话框

如何继续gem安装过程

1 个答案: