Error Installing charlock_holmes on centos - ruby-on-rails

Question

I am trying to install charlock_holmes gem on centos but i keep on getting
Installing charlock_holmes 0.7.6 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
current directory:
/usr/local/rvm/gems/ruby-2.2.5/gems/charlock_holmes-
0.7.6/ext/charlock_holmes
/usr/local/rvm/rubies/ruby-2.2.5/bin/ruby -r ./siteconf20180607-1811-
1cbsady.rb
extconf.rb --with-icu-dir=C:UsersmadprogDesktopicusourcesdistusrlocal
--with-icui18nlib=icuin --with-icudatalib=icudt
checking for main() in -licuin... no
which: no brew in
(/usr/local/rvm/gems/ruby-2.2.5/bin:/usr/local/rvm/gems/ruby-
2.2.5#global/bin:/usr/local/rvm/rubies/ruby-
2.2.5/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/usr/local/
rvm/bin:/root/bin)
checking for main() in -licuin... no
***** icu required (brew install icu4c or apt-get install libicu-dev)
*** 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.
To see why this extension failed to compile, please check the mkmf.log which
can be found here:
/usr/local/rvm/gems/ruby-2.2.5/extensions/x86_64-
linux/2.2.0/charlock_holmes-0.7.6/mkmf.log
extconf failed, exit code 1
An error occurred while installing charlock_holmes (0.7.6), and Bundler
cannot continue.
In Gemfile:
copyright-header was resolved to 1.0.22, which depends on
github-linguist was resolved to 6.2.0, which depends on
charlock_holmes
i also tried installing libicu-dev and this is what i get
no package libicu-dev available.
Error : nothing to do
please help, thank you.