Problema com gem 'pg' no Ubuntu 12.10 64 bits

Programação Ruby on Rails
#1

Olá galera.
Formatei meu note, e instalei o Ubuntu 12.10 64 bits, instalei RVM e comecei a trabalhar com gemsets, porém ao dar um bundle install num projeto que já tinha rodando, ocorre o seguinte erro quando chega na gem pg:


Installing pg (0.14.0) with native extensions 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /home/jonatas/.rvm/rubies/ruby-1.9.3-p327/bin/ruby extconf.rb 
checking for pg_config... yes
Using config values from /usr/bin/pg_config
checking for libpq-fe.h... *** 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
	--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/jonatas/.rvm/rubies/ruby-1.9.3-p327/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
/home/jonatas/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
	from /home/jonatas/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:506:in `try_cpp'
	from /home/jonatas/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:970:in `block in find_header'
	from /home/jonatas/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for'
	from /home/jonatas/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone'
	from /home/jonatas/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:254:in `open'
	from /home/jonatas/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone'
	from /home/jonatas/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:254:in `open'
	from /home/jonatas/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:280:in `postpone'
	from /home/jonatas/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for'
	from /home/jonatas/.rvm/rubies/ruby-1.9.3-p327/lib/ruby/1.9.1/mkmf.rb:969:in `find_header'
	from extconf.rb:41:in `<main>'


Gem files will remain installed in /home/jonatas/.rvm/gems/ruby-1.9.3-p327@sfa/gems/pg-0.14.0 for inspection.
Results logged to /home/jonatas/.rvm/gems/ruby-1.9.3-p327@sfa/gems/pg-0.14.0/ext/gem_make.out
An error occurred while installing pg (0.14.0), and Bundler cannot continue.
Make sure that `gem install pg -v '0.14.0'` succeeds before bundling.
#2

Se estiver usando a última versão do rvm, tente reinstalar o ruby 193.
Senão, atualize o rvm pra última versão e reinstale o ruby 193.

#3

Se estiver usando a última versão do rvm, tente reinstalar o ruby 193.
Senão, atualize o rvm pra última versão e reinstale o ruby 193.

#4

[quote=leandronsp]Se estiver usando a última versão do rvm, tente reinstalar o ruby 193.
Senão, atualize o rvm pra última versão e reinstale o ruby 193.[/quote]

Já fiz isso mas o problema persiste =/

#5

Fazendo mais testes, instalando a gem pg como root, funciona normal, só que minha app não roda por a gem não estar instalada como usuário normal (não root).

#6