$ sudo makepkg -R
==> Attempting to mount chroot directories...
==> Successfully mounted chroot directories.
==> Building a '-current' chroot environment
:: Synchronizing package databases...
 frugalware-current is up to date
 extra-current            [################] 100%     131K   439.6K/s  00:00:00
:: group core:
    bash chkconfig coreutils frugalware grep
:: group chroot-core:
    bc bzip2 db e2fsprogs elinks expat file findutils flex gawk gdbm gettext
    glib2 glibc gnupg gpm gzip libarchive libgcc libidn
:: group chroot-core:
    distcc
:: group devel-core:
    autoconf automake binutils bison ccache diffutils fakeroot gcc
    kernel-headers
resolving dependencies...
error: failed to prepare transaction (could not satisfy dependencies)
:: bash: requires readline

==> ERROR: Failed to build chroot environment.
==> Attempting to umount chroot directories...
==> Successfully umounted chroot directories.
==> Removing lock file...