在尝试安装pg gem时找不到‘libpq-fe.h标头我正在使用RubyonRails 3.1预版本。我喜欢使用PostgreSQL,但问题是安装pg宝石。它给出了以下错误:$ gem install pgBuilding 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.rbchecking for pg_config... noNo pg_config... trying anyway. If building fails, please try again with --with-pg-config=/path/to/pg_configchecking for libpq-fe.h... noCan't find the 'libpq-fe.h header*** extconf.rb failed ***Could not create Makefile due to some reason, probably lack ofnecessary libraries and/or headers. Check the mkmf.log file for moredetails. 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_configGem 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?
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富国沪深
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gem install libpq-dev
Can't find the 'libpq-fe.h header*** extconf.rb failed ***
sudo apt-get
sudo apt-get install libpq-dev# orapt-get install postgres-server-dev-{pg.version}# for postgresql 9.4 on Ubuntu 14.04
gem install pg
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