How to create a .la file?

[Norberto Meijome]

hi,
trying to upgrade gimp from ports, the build process failed with:


libtool: link: cannot find the library `/usr/X11R6/lib/libXcursor.la' or
unhandled argument `/usr/X11R6/lib/libXcursor.la'

libXcursor.la is usually provided by x11/libXcursor, but this port conflicts
with xorg-libraries.

xorg-libraries doesn't provide this file. how do I create it from the existing
libXcursor.so|.a  ?

thanks in advance,
Beto