Ruby-错误: Failed to build gem native extension. gcc:错误:无法识别的命令行选项 '-Wduplicated-cond'

Question

我在通过 wsl ubuntu 在 VScode 中安装 ruby​​ gem 时遇到问题。
具体来说，目前是 rest-client、json、pry-byebug 和 byebug。
我能够毫无问题地安装 ruval gem 和 pry gem。
我不确定是否有些缺少 gem 依赖项，需要升级，或者文件路径需要以某种方式更改。
我注意到 Ubuntu wsl 终端文件路径是“/mnt/C”。可能与它有关？
我认为 C/只是普通的 windows，而/mnt/C 是 Ubuntu 的版本相同，可以访问 C/windows 文件路径。
我在终端中不断收到如下消息:

// ♥  gem install json
Building native extensions. This could take a while...
/usr/share/rvm/rubies/ruby-2.6.1/lib/ruby/2.6.0/open3.rb:213: warning: Insecure world writable dir /mnt/c in 
PATH, mode 040777
ERROR:  Error installing json:
        ERROR: Failed to build gem native extension.
    current directory: /home/mjj4685mjj/.rvm/gems/ruby-2.6.1/gems/json-2.5.1/ext/json/ext/generator
/usr/share/rvm/rubies/ruby-2.6.1/bin/ruby -I /usr/share/rvm/rubies/ruby-2.6.1/lib/ruby/site_ruby/2.6.0 -r ./siteconf20210404-8832-c0i3v3.rb extconf.rb
creating Makefile
current directory: /home/mjj4685mjj/.rvm/gems/ruby-2.6.1/gems/json-2.5.1/ext/json/ext/generator
make DESTDIR\= clean
current directory: /home/mjj4685mjj/.rvm/gems/ruby-2.6.1/gems/json-2.5.1/ext/json/ext/generator
make DESTDIR\=
compiling generator.c
gcc: error: unrecognized command line option '-Wduplicated-cond'
gcc: error: unrecognized command line option '-Wmisleading-indentation'
gcc: error: unrecognized command line option '-Wrestrict'
gcc: error: unrecognized command line option '-Wimplicit-fallthrough=0'
make: *** [Makefile:244: generator.o] Error 1
make failed, exit code 2
Gem files will remain installed in /home/mjj4685mjj/.rvm/gems/ruby-2.6.1/gems/json-2.5.1 for inspection.     
Results logged to /home/mjj4685mjj/.rvm/gems/ruby-2.6.1/extensions/x86_64-linux/2.6.0/json-2.5.1/gem_make.out[21:58:57]  
// ♥ Sandbox (main) 

Answer 1

这不是/mnt/c/路径问题:

warning: Insecure world writable dir /mnt/c in PATH, mode 040777

gems 无法编译和完全安装，因为我有一个过时的 'gcc' (Homebrew) 版本。:

compiling generator.c
gcc: error: unrecognized command line option '-Wduplicated-cond'
gcc: error: unrecognized command line option '-Wmisleading-indentation'
gcc: error: unrecognized command line option '-Wrestrict'
gcc: error: unrecognized command line option '-Wimplicit-fallthrough=0'
make: *** [Makefile:244: generator.o] Error 1
make failed, exit code 2

解决方案:
在终端运行: brew outdated ...并检查 'gcc' 或 'g++' 是否有任何过期的
特征。
然后运行: brew upgrade(来源: https://docs.brew.sh/FAQ)
升级安装完成后，我就可以正常安装 gems 并且我的所有程序都运行良好。