curl-dev.tcz
   curl.tcz
      libssh2.tcz
         libgcrypt.tcz
            libgpg-error.tcz
      libidn.tcz
   libssh2-dev.tcz
      libssh2.tcz
         libgcrypt.tcz
            libgpg-error.tcz
      libgcrypt-dev.tcz
         libgcrypt.tcz
            libgpg-error.tcz
         libgpg-error-dev.tcz
            libgpg-error.tcz
   libidn-dev.tcz
      libidn.tcz