# How to send build options to 'rake gems:build'?

**URL:** <https://www.ruby-forum.com/t/how-to-send-build-options-to-rake-gems-build/170361>\
**Category:** Rails\
**Created:** [June 16, 2009, 4:42pm UTC](https://www.ruby-forum.com/t/how-to-send-build-options-to-rake-gems-build/170361 "2009-06-16T16:42:30Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Jason\_Coffin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/71c47a/32.png) [@Jason\_Coffin](https://www.ruby-forum.com/u/Jason_Coffin)\
**Post date:** [June 16, 2009, 4:42pm UTC](https://www.ruby-forum.com/t/how-to-send-build-options-to-rake-gems-build/170361/1 "2009-06-16T16:42:30Z")

</div>

Greetings,

I need to give the following options to a mysql gem in my vendor/gems  
folder (created with ‘rake gems:unpack’):

–with-mysql-dir=/usr/local/mysql

How can I pass that option along when doing ‘rake gems:build’?

Thanks!