gnome-triggers.c needs #ifdef HAVE_ESD

[Lyndon Drake <lyndon stat auckland ac nz>]

Hi,

gnome-libs/libgnome/gnome-triggers.c makes two calls to esd functions
that should be surrounded by #ifdef HAVE_ESD.  The calls are made in
gnome_triggers_play_sound, which starts on line 354.

Later in gnome-triggers.c (line 533), an esd call is #ifdef'd, and
issues a warning if esd isn't installed.  The warning could become
annoying for people who don't have a sound card, or aren't running esd.

Lyndon