Adds option to make the inclusion of xgps and xgpsspeed optional.

These two X11 programs require gobject and gtk, making them quite
dependency-intensive.  For example, in MacPorts, those two
dependencies recursively expand into over 150 otherwise unnecessary
dependencies.  Making their inclusion optional allows a more
lightweight install for users who don't plan to use them.

This option only determines whether the programs and their manpages
are copied as part of the install; the real benefit comes from being
able to omit the relevant dependencies in a package-manager-based
setup.  The xgps=no setting does not suppress the creation of their
manpages, since that is done via wildcard and it's not worth the
trouble to rework that just to save a small amount of build time in
the xgps=no case.

The default setting is xgps=yes, for compatibility with previous
versions.

TESTED:
Under OSX, verified that the two programs and their respective
manpages are installed iff xgps=yes.

Signed-off-by: Jon Schlueter <jschlueter@redhat.com>

0 files changed, 0 insertions, 0 deletions