Ruby on rails 在Ubuntu 16.04上安装bcrypt（gcc:error:）

出了什么问题？尝试了

gem安装bcrypt

，

gem安装bcrypt ruby

，得到了相同的结果。由于此错误，无法在ruby on rails中进行捆绑安装

sylviachoong@sylviachoong:~/Desktop/postco$ gem install bcrypt-ruby
Building native extensions. This could take a while...
ERROR:  Error installing bcrypt-ruby:
        ERROR: Failed to build gem native extension.

    current directory: /home/sylviachoong/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bcrypt- 3.1.12/ext/mri
/home/sylviachoong/.rbenv/versions/2.5.0/bin/ruby -r ./siteconf20180526-3491-4idkgq.rb extconf.rb
creating Makefile

current directory: /home/sylviachoong/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bcrypt-3.1.12/ext/mri
make "DESTDIR=" clean

current directory: /home/sylviachoong/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bcrypt- 
3.1.12/ext/mri
make "DESTDIR="
compiling bcrypt_ext.c
gcc: error: unrecognized command line option '-Wmisleading-indentation'
gcc: error: unrecognized command line option '-Wduplicated-cond'
Makefile:241: recipe for target 'bcrypt_ext.o' failed
make: *** [bcrypt_ext.o] Error 1

make failed, exit code 2

Gem files will remain installed in /home/sylviachoong/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/bcrypt-3.1.12 for inspection.
Results logged to /home/sylviachoong/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/extensions/x86_64-linux/2.5.0-static/bcrypt-3.1.12/gem_make.out

---

首先运行此命令，然后安装gem

sudo apt-get install libmagickwand-dev

---

运行了

rbenv安装2.5.1

，

gem安装捆绑程序

，以及

rbenv重新安装

已修复。

发出命令

---

bundle update bcrypt

这并没有提供问题的答案。若要评论或要求作者澄清，请在其帖子下方留下评论。-错误为“gcc:error:无法识别的命令行选项”。因此，

gcc

不理解Makefile指令。更新bcrypt不太可能解决这个问题。错误是“gcc:error:unrecognized command line option”。升级libmagickwand不太可能解决这个问题，除非通过某种依赖关系，gcc也被升级了；根本原因是2.5.1更新后的安装出现故障。然后在2.5.3中修复了该错误，请参见：