Redmine

use the command under the redmine catalog : 'bundle install'
Installing pg (0.14.0) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

• 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=/usr/local/ruby/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 /usr/local/ruby/lib/ruby/gems/1.8/gems/pg-0.14.0 for inspection.
Results logged to /usr/local/ruby/lib/ruby/gems/1.8/gems/pg-0.14.0/ext/gem_make.out
An error occured while installing pg (0.14.0), and Bundler cannot continue.
Make sure that `gem install pg -v '0.14.0'` succeeds before bundling.

PG cannot intsall

This is an installation issue, not a Redmine bug, please post in Help forum.