# Error installing gem **URL:** \ **Category:** Ruby\ **Created:** [June 30, 2009, 8:31pm UTC](https://www.ruby-forum.com/t/error-installing-gem/171339 "2009-06-30T20:31:40Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![nabusman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/8edcca/32.png) [@nabusman](https://www.ruby-forum.com/u/nabusman)\ **Post date:** [June 30, 2009, 8:31pm UTC](https://www.ruby-forum.com/t/error-installing-gem/171339/1 "2009-06-30T20:31:40Z")
Here is the paste from Terminal: Nabs$ gem install mysql WARNING: Installing to ~/.gem since /Library/Ruby/Gems/1.8 and /usr/bin aren’t both writable. WARNING: You don’t have /Users/Nabs/.gem/ruby/1.8/bin in your PATH, gem executables will not run. Building native extensions. This could take a while… ERROR: Error installing mysql: ERROR: Failed to build gem native extension. /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb 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… 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=/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby –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 /Users/Nabs/.gem/ruby/1.8/gems/mysql-2.7 for inspection. Results logged to /Users/Nabs/.gem/ruby/1.8/gems/mysql-2.7/gem\_make.out ---
**Author:** ![nabusman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/8edcca/32.png) [@nabusman](https://www.ruby-forum.com/u/nabusman)\ **Post date:** [June 30, 2009, 8:43pm UTC](https://www.ruby-forum.com/t/error-installing-gem/171339/2 "2009-06-30T20:43:09Z")
Try “apt-get install libmysql+±dev” Since there was a lack of Operating system mentioned I’m going to assume it was a Deb based system. If it wasn’t just do yum search mysql |grep dev. If this doesn’t work please post the contents of /Users/Nabs/.gem/ruby/1.8/gems/mysql-2.7/gem\_make.out so we can tell you exactly what’s wrong. ---
**Author:** ![nabusman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/8edcca/32.png) [@nabusman](https://www.ruby-forum.com/u/nabusman)\ **Post date:** [June 30, 2009, 8:46pm UTC](https://www.ruby-forum.com/t/error-installing-gem/171339/3 "2009-06-30T20:46:06Z")
On Jun 30, 8:31 pm, Nabs K. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > checking for mysql\_query() in -lmysqlclient… no > –with-opt-lib > –with-mysql-include > –without-zlib > > ## Gem files will remain installed in /Users/Nabs/.gem/ruby/1.8/gems/mysql-2.7 for inspection. Results logged to /Users/Nabs/.gem/ruby/1.8/gems/mysql-2.7/gem\_make.out > > Posted viahttp://www.ruby-forum.com/. You should try to do it as a root user: $ sudo gem install mysql ---
**Author:** ![nabusman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/8edcca/32.png) [@nabusman](https://www.ruby-forum.com/u/nabusman)\ **Post date:** [June 30, 2009, 10:49pm UTC](https://www.ruby-forum.com/t/error-installing-gem/171339/4 "2009-06-30T22:49:53Z")
@Jordon I’m on OS X… here is gem\_make.out: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb 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… 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=/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby –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 @dejan sudo doesn’t work. ---
**Author:** ![nabusman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/8edcca/32.png) [@nabusman](https://www.ruby-forum.com/u/nabusman)\ **Post date:** [June 30, 2009, 11:49pm UTC](https://www.ruby-forum.com/t/error-installing-gem/171339/5 "2009-06-30T23:49:28Z")
Sudo does work on OSX. Try this for OSX: gem install mysql – --with-mysql-include=/opt/local/include/mysql5 –with-mysql-lib=/opt/local/lib/mysql5 –with-mysql-config=/opt/local/lib/mysql5/bin/mysql\_config ---
**Author:** ![nabusman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/8edcca/32.png) [@nabusman](https://www.ruby-forum.com/u/nabusman)\ **Post date:** [June 30, 2009, 11:57pm UTC](https://www.ruby-forum.com/t/error-installing-gem/171339/6 "2009-06-30T23:57:47Z")
Jordon B. wrote: > Sudo does work on OSX. Try this for OSX: > gem install mysql – --with-mysql-include=/opt/local/include/mysql5 > –with-mysql-lib=/opt/local/lib/mysql5 > –with-mysql-config=/opt/local/lib/mysql5/bin/mysql\_config Nabs$ gem install mysql – –with-mysql-include=/opt/local/include/mysql5 –with-mysql-lib=/opt/local/lib/mysql5 –with-mysql-config=/opt/local/lib/mysql5/bin/mysql\_config WARNING: Installing to ~/.gem since /Library/Ruby/Gems/1.8 and /usr/bin aren’t both writable. WARNING: You don’t have /Users/Nabs/.gem/ruby/1.8/bin in your PATH, gem executables will not run. Building native extensions. This could take a while… ERROR: Error installing mysql: ERROR: Failed to build gem native extension. /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb --with-mysql-include=/opt/local/include/mysql5 –with-mysql-lib=/opt/local/lib/mysql5 –with-mysql-config=/opt/local/lib/mysql5/bin/mysql\_config extconf.rb:1: command not found: /opt/local/lib/mysql5/bin/mysql\_config –cflags \*\*\* 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=/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby –with-mysql-config Gem files will remain installed in /Users/Nabs/.gem/ruby/1.8/gems/mysql-2.7 for inspection. Results logged to /Users/Nabs/.gem/ruby/1.8/gems/mysql-2.7/gem\_make.out ---
**Author:** ![nabusman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/8edcca/32.png) [@nabusman](https://www.ruby-forum.com/u/nabusman)\ **Post date:** [July 1, 2009, 12:45am UTC](https://www.ruby-forum.com/t/error-installing-gem/171339/7 "2009-07-01T00:45:01Z")
On Jun 30, 2009, at 14:57, Nabs K. wrote: > extconf.rb:1: command not found: /opt/local/lib/mysql5/bin/ > mysql\_config > –cflags Do you have mysql5 on your machine at all?