Something went wrong when you tried to split up the configure command into multiple lines. Please try this instead (in one line!):
Code:
./configure --prefix=/usr/local/courier-authlib --without-ipv6 --disable-root-check --without-authpwd --without-authshadow --without-authuserdb --without-authpgsql --without-authldap --without-authvchkpw --without-authcustom --without-authpam --without-authpipe --with-authmysql --with-authdaemon