Question

在Ubuntu 12上安装Nokogiri时出现错误：

Installing nokogiri (1.4.4) with native extensions 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /usr/bin/ruby1.9.1 extconf.rb                                                           
extconf.rb:10: Use RbConfig instead of obsolete and deprecated Config.                          
checking for libxml/parser.h... yes                                                             
checking for libxslt/xslt.h... yes                                                              
checking for libexslt/exslt.h... yes                                                            
checking for iconv_open() in iconv.h... yes                                                     
checking for xmlParseDoc() in -lxml2... yes                                                     
checking for xsltParseStylesheetDoc() in -lxslt... yes                                          
checking for exsltFuncRegister() in -lexslt... yes                                              
checking for xmlFirstElementChild()... yes                                                      
checking for xmlRelaxNGSetParserStructuredErrors()... yes                                       
checking for xmlRelaxNGSetParserStructuredErrors()... yes                                       
checking for xmlRelaxNGSetValidStructuredErrors()... yes                                        
checking for xmlSchemaSetValidStructuredErrors()... yes                                         
checking for xmlSchemaSetParserStructuredErrors()... yes                                        
creating Makefile                                                                               

make                                                                                            
compiling html_sax_parser_context.c                                                             
compiling xml_io.c                                                                              
compiling xml_entity_reference.c                                                                
compiling xml_schema.c                                                                          
compiling xml_element_content.c                                                                 
compiling xml_reader.c                                                                          
compiling xml_sax_push_parser.c                                                                 
compiling xml_sax_parser.c                                                                      
compiling xslt_stylesheet.c                                                                     
compiling xml_element_decl.c                                                                    
compiling xml_node.c                                                                            
compiling xml_cdata.c                                                                           
compiling xml_processing_instruction.c
compiling xml_entity_decl.c
compiling xml_attribute_decl.c
compiling xml_xpath_context.c
xml_xpath_context.c: In function ‘xpath_generic_exception_handler’:
xml_xpath_context.c:184:3: error: format not a string literal and no format arguments [-Werror=format-security]
cc1: some warnings being treated as errors
make: *** [xml_xpath_context.o] Error 1


Gem files will remain installed in /home/alex/.bundler/tmp/22194/gems/nokogiri-1.4.4 for inspection.
Results logged to /home/alex/.bundler/tmp/22194/gems/nokogiri-1.4.4/ext/nokogiri/gem_make.out
An error occurred while installing nokogiri (1.4.4), and Bundler cannot continue.
Make sure that `gem install nokogiri -v '1.4.4'` succeeds before bundling.

我已经安装了libxslt-dev和libxml2-dev，但正如你所看到的那样，它没有帮助。

我该如何解决？

Answer 1

我偶然发现这个尝试在ubuntu 13.04上安装bigbluebutton

我解决了这个诀窍，编译恢复系统范围内的-Wformat-security gcc标志

小心做第一个rm。它会打破你的整个系统!!

rm /usr/bin/gcc
nano /usr/bin/gcc
    ## contents of /usr/bin/gcc
    #!/bin/sh
    gcc-4.7 $* -Wno-format-security
    ## save and exit
chmod u+x /usr/bin/gcc
gem install nokogiri -v '1.4.4'

Answer 2

是否有特定原因需要1.4.4而不是最新的1.5.6？否则我建议升级。

Nokogiri changelog显示他们在1.5.4中解决了这个问题：

为使用的强化Debian系统构建支持 -Werror=format-security。＃680。

Answer 3

@Confusion有正确的想法。

Bundler可能在Gemfile和/或Gemfile.lock中被锁定为nokogiri-1.4.4。 @ Confusion运行bundle update的答案应该允许你的Ruby Bundler环境使用成功安装的nokogiri-1.5.6。

安装nokogiri - 无法构建gem原生扩展

3 个答案: