Currently the jpgtn port (graphics/jpgtn) requires editing of source files to change the minimum and maximum thumbnail size allowed. The following Makefile diff adds the WITH_MINSIZE and WITH_MAXSIZE variables, so no source editing is required by the user.
Also, the man page is updated to reflect the selected values.
Fix: The following patch applied to:
# $FreeBSD: ports/graphics/jpgtn/Makefile,v 1.3 2003/03/07 06:04:05 ade Exp $
Over to maintainer