This patch is part of the effort to get maitreya into debian. At the request of astrodienst, the debian shared library version of swe does not include the "swepcalc.h" interface. Astrodienst will be removeing "swepcalc.h" with the next release of swe.
this patch removes the line:
Which is not needed because nothing from that include file is actually used by maitreya.
I see no reason why this patch should not be applied.