在Windows上安装PG Gem时出错

我使用XAMPP作为PostgreSQL 9.3的安装文件夹。

C:\ XAMPP \ pgsql的\ 9.3

现在我正在尝试使用该目录安装PostgreSQL gem作为参考:

gem install pg -- --with-pg-include="C:\xampp\pgsql\9.3\include" --with-pg-lib="C:\xampp\pgsql\9.3\lib" --with-pg-config="C:\xampp\pgsql\9.3\bin\pg_config" 

但是这个命令失败,错误如下:

 ERROR: Error installing pg: ERROR: Failed to build gem native extension. C:/Ruby/Ruby200/bin/ruby.exe extconf.rb --with-pg-include=C:\xampp\pgsql\9.3 \include --with-pg-lib=C:\xampp\pgsql\9.3\lib --with-pg-config=C:\xampp\pgsql\9. 3\bin\pg_config Using config values from C:\xampp\pgsql\9.3\bin\pg_config checking for libpq-fe.h... yes checking for libpq/libpq-fs.h... yes checking for pg_config_manual.h... yes checking for PQconnectdb() in -lpq... no checking for PQconnectdb() in -llibpq... no checking for PQconnectdb() in -lms/libpq... no Cant find the PostgreSQL client library (libpq) *** 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=C:/Ruby/Ruby200/bin/ruby --with-pg --without-pg --with-pg-config --with-pg-dir --without-pg-dir --with-pg-include=${pg-dir}/include --with-pg-lib=${pg-dir}/ --with-pqlib --without-pqlib --with-libpqlib --without-libpqlib --with-ms/libpqlib --without-ms/libpqlib extconf failed, exit code 1 Gem files will remain installed in C:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/pg-0 .17.1 for inspection. Results logged to C:/Ruby/Ruby200/lib/ruby/gems/2.0.0/extensions/x86-mingw32/2.0 .0/pg-0.17.1/gem_make.out 

当我检查里面的pgsql,实际上有一个名为libpq.dll里面的文件

C:\ XAMPP \ pgsql的\ 9.3 \ lib中

那么为什么错误说它找不到PostgreSQL客户端库(libpq)?
有没有解决这个错误?

仅供参考,我正在使用:

  • Windows 8.1 64位
  • Ruby 2.0.0 64位
  • Rails 4.1.1
  • Devkit 4.7.2 64位
  • PostgreSQL 9.3.4 64位

我试图安装PG Gem版本0.17.1

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