dspam install

[Warren Block]

On Wed, 14 Jul 2010, Jim Pazarena wrote:

> my own ports confusion (in general) is that in some ports
> you use a "-Dxxxxxx" to define a required (or not required) option
> while in others (at least dspam) you use WITHOUT_xxx or WITH_xxx=1.
> It would be nice if all ports has the same standard of definitions.
>
> Or... am I confused?

The two methods have the same result.

For example:

   cd /usr/ports/editors/openoffice.org-3
   make -V WITHOUT_MOZILLA

Shows nothing, since that variable is undefined by default.  Using -D 
tells make to define it, which it does by setting it to "1":

   make -DWITHOUT_MOZILLA -V WITHOUT_MOZILLA
   1

Manually setting the variable to a value also defines it:

   make WITHOUT_MOZILLA=1 -V WITHOUT_MOZILLA
   1

   make WITHOUT_MOZILLA=yes -V WITHOUT_MOZILLA
   yes

The Makefiles usually only care about whether a WITH_ variable has been 
defined, not the actual value, so the result is the same.