build process. This way it is easier to respect CC and CFLAGS.
Based on patch provided in PR pkg/19305 by Jonathan Perkin.
Also depend on gettext-lib, as the program links against -lintl.
- New, optional Makefile variable HOMEPAGE, specifies a URL for
the home page of the software if it has one.
- The value of HOMEPAGE is used to add a link from the
README.html files.
- pkglint updated to know about it. The "correct" location for
HOMEPAGE in the Makefile is after MAINTAINER, in that same
section.