[tracker] build: Comment configure about why we still have dbus and dbus-glib-1

[Martyn James Russell <mr src gnome org>]

commit 7578f3c7c3f35f9da426b9c530e8b8e20a4973f8
Author: Martyn Russell <martyn lanedo com>
Date:   Thu Jan 20 09:42:22 2011 +0000

    build: Comment configure about why we still have dbus and dbus-glib-1
    
    Fixes GB#622918, Migrate from dbus-glib to glib's GDBus

 configure.ac |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 57eba27..34200d6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -203,6 +203,12 @@ NETWORK_MANAGER_REQUIRED=0.8
 # 3.7.0 for WAL
 SQLITE_REQUIRED=3.7.0
 
+# NOTE: dbus and dbus-glib-1 are only used now for libtracker-client
+# which is deprecated and tracker-writeback which will be refactored
+# shortly to use gdbus. The other place which requires dbus-glib-1 is
+# for HAL used in tracker-miner-fs if the alternative libraries are
+# not available.
+
 # Check for libpng 1.2 or higher
 PKG_CHECK_MODULES(LIBPNG, [libpng >= 1.2])
 AC_SUBST(LIBPNG_CFLAGS)