Installation problem (readline)

Hi,

I've just downloaded Mutella 0.4.1 and tried to install it. The configure-script stops with the message:

configure: error: You must have readline library!

But I have got the readline lib!

"rpm -q readline" shows:
readline-4.2-28

"locate readline" shows:
/lib/libreadline.so.4
/lib/libreadline.so.4.2
/usr/include/mysql/readline.h
/usr/share/doc/packages/bash/readline.html
/usr/share/info/readline.info.gz
/usr/share/vim/vim60/indent/readline.vim
/usr/share/vim/vim60/syntax/readline.vim

What should I do?

Thanks, Thomas