Log message:
Drop superfluous PKG_DESTDIR_SUPPORT, "user-destdir" is default these days.
Mark packages that don't or might probably not have staged installation.

Log message:
Import lcalc-1.23 as wip/lcalc.

lcalc is a program for computing zeros and values of L-functions. Supported
L-functions include the Riemann zeta function, the L-function of the Ramanuja
n delta function, and L-functions of elliptic curves defined over the rationals