GDL - GNU Data Language

I'm compiling on a machine configured: Linux "server" 2.6.18-194.32.1.el5 #1 SMP Wed Jan 5 17:52:25 EST 2011 x86_64 x86_64 x86_64 GNU/Linux I'm trying to configure the latest source code using the command: ./configure --prefix=/home/user/bin/gdl and got the error: "checking for initscr in -lncurses... no checking for initscr in -lcurses... no checking for stifle_history in -lreadline... no Error! GNU readline was not found. Use --with-readlinedir=no to expicitely disable it Check the README or use configure --help for other libraries needed (suitable Debian/Ubuntu package: libreadline5-dev)" So, I added a configure command: --with-readlinedir=/usr/lib64/libreadline.so.5 "./configure --prefix=/home/user/bin/gdl --with-readlinedir=/usr/lib64/libreadline.so.5" This gives the same error. Any suggestions or previous threads I can be directed to? I searched but couldn't find a thread exactly similar. Thanks in advance, Sean