[totem] thumbnailer: Fix missing -lm for linker

[Bastien Nocera <hadess src gnome org>]

commit b56cc226919dfcca7f6e810d1de5e8e88445342b
Author: Bastien Nocera <hadess hadess net>
Date:   Sat Jul 14 22:15:48 2012 +0100

    thumbnailer: Fix missing -lm for linker

 src/Makefile.am |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 1d54d71..edc1f1c 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -195,7 +195,8 @@ totem_video_thumbnailer_LDADD =		\
 	$(THUMBNAILER_LIBS)		\
 	gst/libtotemgstpixbufhelpers.la	\
 	gst/libtotemgsthelpers.la	\
-	gst/libtotemtimehelpers.la
+	gst/libtotemtimehelpers.la	\
+	-lm
 
 # Nautilus Property Page
 if HAVE_NAUTILUS