gem install pg give the following error, please help how can i solve
Building native extensions. This could take a while…
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
checking for pg_config… yes
Using config values from /usr/bin/pg_config
checking for libpq-fe.h… yes
checking for libpq/libpq-fs.h… yes
checking for pg_config_manual.h… yes
checking for PQconnectdb() in -lpq… no
checking for PQconnectdb() in -llibpq… no
checking for PQconnectdb() in -lms/libpq… no
Can’t find the PostgreSQL client library (libpq)
*** 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:
Gem files will remain installed in
/home/saravanan/.rvm/gems/ruby-1.9.3-p194/gems/pg-0.14.1 for inspection.
Results logged to