Hi,
These are the steps I followed:
1)
I have installed Apache_1.3.12:
./configure --prefix=/usr/local/apache --enable-shared=max
make
make install
It works fine.

2)
I installed Ruby 1.4.5 and it works fine too.

3)
I installed mod_ruby without having any error during installation, and I
have mod_ruby.so in 'apachelibexec'.

4)
I have added to httpd.conf:
LoadModule mod_ruby   libexec/mod_ruby.so // this line gives the error
AddModule mod_ruby.c

When I start Apache I receive this error:
Can't locate API module structure 'mod_ruby' in file
/www/libexec/mod_ruby.so: /
www/libexec/mod_ruby.so: undefined symbol: mod_ruby
httpd could not be started

Any idea?

Thank you.

Jilani

ps.
platform: Linux Slakware 7.0
Ruby works fine as CGI