Please help with installing mysql gem to linux machine w/ xampp

Hello all,
    I know this is not an uncommon question, but none of the
tutorials/tips solve my problem. I've got a linux machine running Ubuntu
10.4 with ruby, gem, rails, and xampp installed.

Now when I try to install the mysql gem (via: $sudo gem install mysql
-with-mysql-config=/opt/lampp/bin/mysql_config), I get:

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... 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
etc, etc...

What should I check?

Thanks in advance,
Dan

Solved! via: http://www.dolicapax.org/?p=11

Hello,
check RVM because later you can have more problems
http://rvm.beginrescueend.com/gemsets/basics/

I had the same problem, and met with this many times in mailing list.
Better to avoid in early stage.
Cheers,
gezope