找不到'libpq
我正在使用Ruby on Rails 3.1之前的版本。 我喜欢使用PostgreSQL,但问题在于安装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
我该如何解决这个问题?
它看起来像在Ubuntu中,头文件是libpq-dev
软件包的一部分(至少在以下Ubuntu版本中为:11.04(Natty Narwhal),10.04(Lucid Lynx),11.10(Oneiric Ocelot),12.04(精确穿山甲)和14.04 Trusty Tahr)):
...
/usr/include/postgresql/libpq-fe.h
...
因此,请尝试安装libpq-dev
或其同等操作系统:
sudo apt-get install libpq-dev
yum install postgresql-devel
brew install postgresql
gem install pg -- --with-pg-config=/opt/local/lib/postgresql[version number]/bin/pg_config
zypper in postgresql-devel
在macOS (以前的Mac OS X和OS X )上,使用Homebrew安装正确的标题:
brew install postgresql
然后运行
gem install pg
应该管用。
我也试过做gem install libpq-dev
,但是我收到这个错误:
Can't find the 'libpq-fe.h header
*** extconf.rb failed ***
然而,我发现使用sudo apt-get
(我尝试避免使用Ruby on Rails)进行安装的工作,即
sudo apt-get install libpq-dev
# or
apt-get install postgres-server-dev-{pg.version}
# for postgresql 9.4 on Ubuntu 14.04
然后我能够做到
gem install pg
没有问题。
链接地址: http://www.djcxy.com/p/81105.html