pg gem が頑固なので、新しいコンピューターにアプリをロードできません。pg_config と extconf.rb を見つけることができないという複数の問題があるようです
#psql working...
psql (9.2.1)
Type "help" for help.
nd =>
\q
$ pg_config:
#adding the path to bashrc...
$ nano .bashrc
PATH=/usr/pgsql-9.2/bin:$PATH
#seems to work...
pg_config: /usr/pgsql-9.2/bin/pg_config
$ sudo gem install pg
#but i get the same errors...
Building native extensions. This could take a while...
.......
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
/usr/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.
この問題に対処した Linux 関係者はいますか?