Error:
I have faced following issues during installation of MySQL gem on Linux systems.
#gem install mysql2 -v '0.3.18' Building native extensions. This could take a while... ERROR: Error installing mysql2: ERROR: Failed to build gem native extension. /usr/local/rvm/rubies/ruby-2.1.2/bin/ruby extconf.rb checking for ruby/thread.h... yes checking for rb_thread_call_without_gvl() in ruby/thread.h... yes checking for rb_thread_blocking_region()... yes checking for rb_wait_for_single_fd()... yes checking for rb_hash_dup()... yes checking for rb_intern3()... yes 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... yes 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 checking for main() in -lmygcc... no 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/local/rvm/rubies/ruby-2.1.2/bin/ruby --with-mysql-dir --without-mysql-dir --with-mysql-include --without-mysql-include={mysql-dir}/include --with-mysql-lib --without-mysql-lib=${mysql-dir}/lib --with-mysql-config --without-mysql-config --with-mysql-dir --without-mysql-dir --with-mysql-include --without-mysql-include=${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 --with-mygcclib --without-mygcclib --with-mysqlclientlib --without-mysqlclientlib extconf failed, exit code 1 Gem files will remain installed in /usr/local/rvm/gems/ruby-2.1.2/gems/mysql2-0.3.18 for inspection. Results logged to /usr/local/rvm/gems/ruby-2.1.2/extensions/x86_64-linux/2.1.0/mysql2-0.3.18/gem_make.out
Solution:
To fix this issue we need to install MySQL development and client packages on our Linux system.
On Ubuntu & Debian:
$ sudo apt-get install libmysqlclient-dev
On Redhat & CentOS:
# yum install mysql-devel
On Mac OS X:
$ brew install mysql
1 Comment
For Debian Stretch AMD64 + Redmine + RVM
# Il semble que le paquet équivalent pour mariadb serait libmariadbclient-dev.
sudo apt install default-libmysqlclient-dev
# Installer alors le gem de mysql2 pour vérifier si ça passe.
gem install mysql2 -v ‘~>0.4.10’
https://wiki.visionduweb.fr/index.php?title=Installer_Redmine_sur_Debian_avec_RVM