[tracker/tracker-0.10] tracker-writeback: Add include of math.h for modf

[Martyn James Russell <mr src gnome org>]

commit 32d8f75c35d90c17f97c8c0ebd5b6aa9a73a7770
Author: Philip Van Hoof <philip codeminded be>
Date:   Tue Nov 15 18:26:07 2011 +0100

    tracker-writeback: Add include of math.h for modf

 src/tracker-writeback/tracker-writeback-xmp.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/tracker-writeback/tracker-writeback-xmp.c b/src/tracker-writeback/tracker-writeback-xmp.c
index c3e3ed8..aa05a66 100644
--- a/src/tracker-writeback/tracker-writeback-xmp.c
+++ b/src/tracker-writeback/tracker-writeback-xmp.c
@@ -23,6 +23,7 @@
 
 #include <locale.h>
 #include <string.h>
+#include <math.h>
 
 #include <exempi/xmp.h>
 #include <exempi/xmpconsts.h>