Please give-back lcalc on kfreebsd-*

[Tobias Hansen]

Hello,

lcalc failed to build on kfreebsd-* due to bug #833829 in gcc. Since the
bug is fixed, please let's give it another go.

  gb lcalc_1.23+dfsg-6 . kfreebsd-amd64 kfreebsd-i386

Thanks,
Tobias