A solution for a gem install mysql problem

Some times we get an error in linux as follows while running gem install mysql,

root@ip-10-251-30-82:/etc/mysql# gem install mysql
Building native extensions.  This could take a while...
ERROR:  Error installing mysql:
     ERROR: Failed to build gem native extension.

/usr/bin/ruby1.8 extconf.rb install mysql
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lm... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lz... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lsocket... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lnsl... yes
checking for mysql_query() in -lmysqlclient... no
*** 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
     --without-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=/usr/bin/ruby1.8
     --with-mysql-config
     --without-mysql-config
     --with-mysql-dir
     --without-mysql-dir
     --with-mysql-include
     --without-mysql-include=${mysql-dir}/include
     --with-mysql-lib
     --without-mysql-lib=${mysql-dir}/lib
     --with-mysqlclientlib
     --without-mysqlclientlib
     --with-mlib
     --without-mlib
     --with-mysqlclientlib
     --without-mysqlclientlib
     --with-zlib
     --without-zlib
     --with-mysqlclientlib
     --without-mysqlclientlib
     --with-socketlib
     --without-socketlib
     --with-mysqlclientlib
     --without-mysqlclientlib
     --with-nsllib
     --without-nsllib
     --with-mysqlclientlib
     --without-mysqlclientlib


Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/mysql-2.7 for inspection.
Results logged to /usr/lib/ruby/gems/1.8/gems/mysql-2.7/gem_make.out
root@ip-10-251-30-82:/etc/mysql# gem install mysql -- --with-mysql-config=/etc/mysql/my.cnf
Building native extensions.  This could take a while...
ERROR:  Error installing mysql:
     ERROR: Failed to build gem native extension.

The solution is simple :)

Just run,

apt-get install libmysqlclient15-dev libmysqlclient15off zlib1g-dev libmysql-ruby1.8

Run the following if you do not have mysql installed,

apt-get install mysql-server-5.0 mysql-client-5.0 libmysqlclient15-dev libmysqlclient15off zlib1g-dev libmysql-ruby1.8

And then run

gem install mysql