Phillip,
Thanks for the information, and for the help. I did some more looking
around to try and help people who have this problem in the future.
The mysql_config script wasn't on my system.
After I installed the mysql4-dev package from Fink the mysql_config
script was located in "/sw/bin/mysql_config".
So in summary, for those people using Fink to install mysql 4.1.10 you
will need the followng packages:
"mysql" (version 4.1.10-1)
"mysql-client" (version 4.1.10-1)
"mysql4-shlibs" (version 4.1.10-1)
"mysql4-dev" (version 4.1.10-1)
Then you can download and unpack mysql-ruby.
I sucessfully installed mysql-ruby 2.6 running
"sudo ruby extconf.rb --with-mysql-config=/sw/bin/mysql_config"
and then following the rest of the instructions provided by mysql-ruby.
Thanks to everyone on this list who's providing help for this issue. I
hope this helps.