ruby - Failed to install gem mysql2 on Ubuntu 16.04.3 LTS -


when run gem install mysql2 command following error message:

building native extensions.  take while... error:  error installing mysql2:     error: failed build gem native extension. ... not create makefile due reason, lack of necessary libraries and/or headers.  check mkmf.log file more details.  may need configuration options. ...  see why extension failed compile, please check mkmf.log can found here:    /home/lucivaldo/.rvm/gems/ruby-2.4.0/extensions/x86_64-linux/2.4.0/mysql2-0.4.9/mkmf.log  extconf failed, exit code 1  gem files remain installed in /home/lucivaldo/.rvm/gems/ruby-2.4.0/gems/mysql2-0.4.9 inspection. results logged /home/lucivaldo/.rvm/gems/ruby-2.4.0/extensions/x86_64-linux/2.4.0/mysql2-0.4.9/gem_make.out

looking @ log file described @ end of message noticed library missing.

how solve problem?

searching here in stack overflow itself, found solution problem similar following command, solves problem:

sudo apt install libgmp3-dev

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