当我运行软件包安装时，如何传递一个用于gem安装的参数？ [英] How can I pass a parameter for gem installation when I run bundle install?

问题描述

我将 pg gem 添加到我的gemfile中

  gem'pg'
  

bundle install ，我得到这个错误：

 安装pg（0.10。 1）本地扩展/Users/ben/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/rubygems/installer.rb:483:in`在build_extensions中的块中救援：错误：无法构建gem原生扩展。 （Gem :: Installer :: ExtensionBuildError）
 
 /Users/benhartney/.rvm/rubies/ruby-1.9.2-p0/bin/ruby extconf.rb 
检查pg_config .. 。no 
没有pg_config ...无论如何。如果构建失败，请再次尝试使用
 --with-pg-config = / path / to / pg_config 
检查libpq-fe.h ... no 
无法找到'libpq-fe.h头文件
 *** extconf.rb失败*** 
由于某种原因无法创建Makefile，可能缺少
必需的库和/或头文件。查看mkmf.log文件以获取更多
的详细信息。您可能需要配置选项。 
  

看来我需要传递这个配置参数

  --with-pg-config = / path / to / pg_config 
  

当我使用 bundle install ？

解决方案你需要设置一个构建配置选项，如下所示：

  bundle config build.pg --with-pg -config = / path / to / pg_config 
  

更多信息可以在软件包配置手册页

I added the pg gem to my gemfile

gem 'pg'

When I run bundle install, I get this error:

Installing pg (0.10.1) with native extensions /Users/ben/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/rubygems/installer.rb:483:in `rescue in block in build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)

/Users/benhartney/.rvm/rubies/ruby-1.9.2-p0/bin/ruby extconf.rb 
checking for pg_config... no
No pg_config... trying anyway. If building fails, please try again with
 --with-pg-config=/path/to/pg_config
checking for libpq-fe.h... no
Can't find the 'libpq-fe.h header
*** 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.  You may need configuration options.

It seems I need to pass in this config parameter

 --with-pg-config=/path/to/pg_config

How can I do this when I use bundle install?

解决方案

You need to set a build config option like so:

bundle config build.pg --with-pg-config=/path/to/pg_config

More info can be found in the bundle config man page

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