please help me in this… I am unable to install pg gem file
[root@vdimc04 ~]# gem install pg -v ‘0.12.0’
/usr/local/lib/ruby/1.9.1/yaml.rb:56:in `<top (required)>’:
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your
ruby.
Fetching: rake-compiler-0.8.1.gem (100%)
Fetching: pg-0.12.0.gem (100%)
Building native extensions. This could take a while…
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
/usr/local/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.
Gem files will remain installed in
/usr/local/lib/ruby/gems/1.9.1/gems/pg-0.12.0 for inspection.
Results logged to
/usr/local/lib/ruby/gems/1.9.1/gems/pg-0.12.0/ext/gem_make.out
please help me in this… I am unable to install pg gem file
[root@vdimc04 ~]# gem install pg -v ‘0.12.0’
/usr/local/lib/ruby/1.9.1/yaml.rb:56:in `<top (required)>’:
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your
ruby.
Fetching: rake-compiler-0.8.1.gem (100%)
Fetching: pg-0.12.0.gem (100%)
Building native extensions. This could take a while…
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
/usr/local/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 ***
It is in your own interest to provide more detail respecting your
installation when reporting a problem and asking for help. For example,
are you running CentOS-6 or 5? What point release? Are you using the
stock PostgreSQl install, have you installed a different version from
another respoitory, or have you built PostgreSQl yourself? In any case
what version of Postgres?
Providing that you are running CentOS-6.x; and assuming that you are
evidently not using the Postgres provided with that distribution; and
guessing that you are likely using the pgdg-91-centos.repo; and also
guessing that you are using either rvm or rbenv then you likely need to
do something akin to the following