From: Jonathan Nielsen <jonathan@...>
Date: 2010-04-24T08:30:02+09:00
Subject: Re: mysql gem problem

On Fri, Apr 23, 2010 at 5:07 PM, Henry Oss <oss.hcs@googlemail.com> wrote:
> Hi
>
> I am a ruby and linux newbie hoping to learn rails.  I have Ubuntu 9.10
> (64 bit), ruby 1.8.7, MySQL 5.1.37, which appear sto be working in that
> I can run the Administrator app OK.
>
> When running:
> $ sudo gem install mysql
>
> I get the following:
> Building native extensions.  This could take a while...
> ERROR:  Error installing mysql:
>  ERROR: Failed to build gem native extension.
>
> /usr/bin/ruby1.8 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... no
> 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.
>
> Most advice seems to centre around locating your mysql_config file, but
> $ sudo find / -name "mysql_config" -print
> is drawing a blank.
>
> Can anybody save my head from this brick wall?
>
> Thanks in advance


Hi, looks like you need the libmysqlclient-dev package from the Ubuntu
repositories.  You may also need the ruby-dev package.

See if that works for you!

-Jonathan Nielsen