buildroot

config BR2_PACKAGE_MCRYPT

    bool "mcrypt"

    depends on BR2_USE_MMU # fork()

    select BR2_PACKAGE_LIBMCRYPT

    select BR2_PACKAGE_LIBMHASH

    select BR2_PACKAGE_GETTEXT if BR2_NEEDS_GETTEXT_IF_LOCALE

    help

      MCrypt is a replacement for the old crypt() package and crypt(1)

      command, with extensions.

      It allows developers to use a wide range of encryption functions,

      without making drastic changes to their code.

​

      http://mcrypt.sourceforge.net/