I have tried installing the packet libpq-dev, and installing postgresql, but bundle install still fails due to gem pg. This is the error I get:
$ gem install pg -v '0.15.1'
Building native extensions. This could take a while...
/.rvm/rubies/ruby-1.9.3-
p484/lib/ruby/site_ruby/1.9.1/rubygems/ext/builder.rb:73: warning: Insecure
world writable dir /usr/local in PATH, mode 040777
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
/.rvm/rubies/ruby-1.9.3-p484/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.
What is a proper way to clean up the mess?
There isn't any "mess" - it's a standard issue where your system does not have the required libraries to install the gem
Library
As mentioned in the comments, you first need to install PGSQL , which will create the required library files to help the gem install, after that you can use some path references to help the gem install:
gem install pg -- --with-pg-dir="C:/Program Files/installer
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