安装 OpenSSL 时无法构建 gem 本机扩展

Question

所以我正在关注本教程：https://meta.discourse.org/t/beginners-guide-to-install-discourse-on-macos-for-development/15772但是当我使用bundle install它时给我这个错误：

An error occurred while installing openssl (2.2.0), and Bundler cannot
continue.
Make sure that `gem install openssl -v '2.2.0' --source 'https://rubygems.org/'`
succeeds before bundling.

随着

Installing openssl 2.2.0 with native extensions
Installing cppjieba_rb 0.3.3 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension

但为什么我会得到这个？

跑步gem install openssl -v '2.2.0' --source 'https://rubygems.org/'让我...

Building native...
ERROR:  Error installing openssl:
    ERROR: Failed to build gem native extension.

    current directory: /Library/Ruby/Gems/2.6.0/gems/openssl-2.2.0/ext/openssl
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/ruby -I /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0 -r ./siteconf20210225-70291-10x2bpm.rb extconf.rb
checking for t_open() in -lnsl... no
checking for socket() in -lsocket... no
checking for openssl/ssl.h... no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.

Provided configuration options:
    --with-opt-dir
    --without-opt-dir
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=.
    --curdir
    --ruby=/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/$(RUBY_BASE_NAME)
    --with-openssl-dir
    --with-openssl-include
    --without-openssl-include=${openssl-dir}/include
    --with-openssl-lib
    --without-openssl-lib=${openssl-dir}/lib
    --with-kerberos-dir
    --without-kerberos-dir
    --with-kerberos-include
    --without-kerberos-include=${kerberos-dir}/include
    --with-kerberos-lib
    --without-kerberos-lib=${kerberos-dir}/lib
    --with-debug
    --without-debug
    --enable-debug
    --disable-debug
    --with-nsllib
    --without-nsllib
    --with-socketlib
    --without-socketlib
    --with-openssl-config
    --without-openssl-config
    --with-pkg-config
    --without-pkg-config
extconf.rb:99:in `<main>': OpenSSL library could not be found. You might want to use --with-openssl-dir=<dir> option to specify the prefix where OpenSSL is installed. (RuntimeError)

To see why this extension failed to compile,

  /Library/Ruby/Gems/2.6.0/extensions/universal-darwin-20/2.6.0/openssl-2.2.0/mkmf.log

Gem files will remain installed in /Library/Ruby/Gems/2.6.0/gems/openssl-2.2.0 for inspection.
Results logged to /Library/Ruby/Gems/2.6.0/extensions/universal-darwin-20/2.6.0/openssl-2.2.0/gem_make.out

再说一遍，为什么会发生这种情况？请帮忙！

Answer 1

opensslgem 基本上是库的一组包装器openssl。在构建本机扩展步骤期间，捆绑程序无法在系统中找到该库。因此 gem 无法安装。

这很奇怪，因为您明确链接的脚本openssl早在捆绑 gem 之前就已安装

log_info "Upgrading and linking OpenSSL ..."
  brew install openssl
  brew link openssl --force

检查脚本的输出是否有错误（并检查它是否已到达此步骤）。您可能会在那里找到缺少 openssl 库的原因（或者只是尝试使用上面的命令更多地手动安装 openssl）。

安装openssl库后使用命令检查其版本

openssl version -a

如果您有自定义 openssl 库安装，则遵循错误消息中的建议并在指定 openssl 库的路径时手动安装 openssl gem 可能会有所帮助