安装pg gem时找不到'libpq-fe.h头文件

我使用的是Ruby on Rails 3.1预版本。我喜欢使用PostgreSQL，但问题是安装pg gem。它给了我以下错误:

$ gem install pg
Building native extensions.  This could take a while...
ERROR:  Error installing pg:
    ERROR: Failed to build gem native extension.

        /home/u/.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.

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=/home/u/.rvm/rubies/ruby-1.9.2-p0/bin/ruby
    --with-pg
    --without-pg
    --with-pg-dir
    --without-pg-dir
    --with-pg-include
    --without-pg-include=${pg-dir}/include
    --with-pg-lib
    --without-pg-lib=${pg-dir}/lib
    --with-pg-config
    --without-pg-config
    --with-pg_config
    --without-pg_config
    Gem files will remain installed in /home/u/.rvm/gems/ruby-1.9.2-p0/gems/pg-0.11.0 for inspection.
    Results logged to /home/u/.rvm/gems/ruby-1.9.2-p0/gems/pg-0.11.0/ext/gem_make.out

我怎么解决这个问题?

当前回答

我也遇到过类似的问题，这个方法帮我解决了问题:

gem install do_postgres -- --with-pgsql-server-dir=/Applications/Postgres.app/Contents/MacOS --with-pgsql-server-include=/Applications/Postgres.app/Contents/MacOS/include/server

来源:

https://gist.github.com/oisin/6562181

2014-02-07 02:27:57

其他回答

找不到libpq-fe.h头文件

我在CentOS 7.0.1406上运行以下命令成功:

~ % psql --version # => psql (PostgreSQL) 9.4.1
yum install libpqxx-devel
gem install pg -- --with-pg-config=/usr/pgsql-9.4/bin/pg_config

或者，你可以配置捆绑器总是安装pg，使用这些选项(有助于在部署环境中运行捆绑器)，

包配置构建。pg - with-pg-config = / usr / bin / pg_config / pgsql - 9.4

2015-03-02 01:51:56

我在亚马逊Linux上也遇到了同样的问题。我可以找到libpq-fe.h头文件，但不知为何它不起作用。

它来自不同用户在机器上安装的不同版本的软件包。安装PostgreSQL 9.2和PostgreSQL 9.3。因此，在包含库之前，请确保您的PostgreSQL版本。

对我来说，神奇的命令行是:

sudo yum install postgresql93 postgresql93-server postgresql93-libs postgresql93-contrib postgresql93-devel

资料来源:用Yum安装PostgreSQL 9.3、PostGIS 2.1和p注浆的白痴指南

2015-01-30 07:47:46

我在使用Postgresql 9.6时遇到了这个问题。我可以通过这样做来修复它:

brew upgrade postgresql@9.6
brew link postgresql@9.6 --force
gem install pg

2018-01-05 20:04:06

对于Mac OS X，只需安装https://postgresapp.com/，并遵循命令行部分和ruby的步骤

sudo mkdir -p /etc/paths.d &&
echo /Applications/Postgres.app/Contents/Versions/latest/bin | sudo tee /etc/paths.d/postgresapp

然后

sudo ARCHFLAGS="-arch x86_64" gem install pg

2018-04-24 18:00:13

Ubuntu 20.04.1 LTS，这似乎对我有用:

sudo apt-get install ruby ruby-dev libpqxx-dev libpq-fe-dev libpq-dev 
sudo gem install pg -- --with-pg-config=/usr/include/postgresql/pg_config --with-pg-include=/usr/include/postgresql/

2020-08-28 04:40:35

安装pg gem时找不到'libpq-fe.h头文件

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