installing mysql ruby gem with proper configuration options -


< update: system rhel6>

i trying install mysql using command gem install mysql -v '2.8.1' , below error

building native extensions.  take while... error:  error installing mysql:         error: failed build gem native extension.          /usr/local/bin/ruby extconf.rb checking mysql_ssl_set()... *** extconf.rb failed *** not create makefile due reason, lack of necessary libraries and/or headers.  check mkmf.log file more details.  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/local/bin/ruby         --with-mysql-config         --without-mysql-config /usr/local/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': compiler failed generate executable file. (runtimeerror) have install development tools first.         /usr/local/lib/ruby/1.9.1/mkmf.rb:461:in `try_link0'         /usr/local/lib/ruby/1.9.1/mkmf.rb:476:in `try_link'         /usr/local/lib/ruby/1.9.1/mkmf.rb:619:in `try_func'         /usr/local/lib/ruby/1.9.1/mkmf.rb:894:in `block in have_func'         /usr/local/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for'         /usr/local/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone'         /usr/local/lib/ruby/1.9.1/mkmf.rb:254:in `open'         /usr/local/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone'         /usr/local/lib/ruby/1.9.1/mkmf.rb:254:in `open'         /usr/local/lib/ruby/1.9.1/mkmf.rb:280:in `postpone'         /usr/local/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for'         /usr/local/lib/ruby/1.9.1/mkmf.rb:893:in `have_func'         extconf.rb:50:in `<main>'

i tried below command gem install mysql -v '2.8.1' --with-mysql-dir=/usr/lib64/mysql/ failed error message invalid option: --with-mysql-dir=/usr/lib64/mysql/

/user/lib64/mysql has below .so files

/usr/lib64/mysql/libmysqlclient.so.16.0.0 /usr/lib64/mysql/libmysqlclient_r.so.16 /usr/lib64/mysql/libmysqlclient_r.so.16.0.0 /usr/lib64/mysql/libmysqlclient.so.16

can please me understand exact command mysql gem installation?


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