[gnome-power-manager] Use -lm to fix the compile when linking with --as-needed

[Richard Hughes <rhughes src gnome org>]

commit 334e2c24674b4e978ec4b1eaed048679368441eb
Author: Richard Hughes <richard hughsie com>
Date:   Wed Jan 6 19:01:14 2010 +0000

    Use -lm to fix the compile when linking with --as-needed

 src/Makefile.am |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index b038669..3e70be3 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -97,6 +97,7 @@ gnome_power_statistics_LDADD =				\
 	$(GNOME_LIBS)					\
 	$(UNIQUE_LIBS)					\
 	$(DBUS_LIBS)					\
+	-lm						\
 	$(NULL)
 
 gnome_power_statistics_CFLAGS =				\
@@ -114,6 +115,7 @@ gnome_power_preferences_LDADD =				\
 	$(GLIB_LIBS)					\
 	$(GNOME_LIBS)					\
 	$(DBUS_LIBS)					\
+	-lm						\
 	$(UNIQUE_LIBS)					\
 	$(GPM_EXTRA_LIBS)				\
 	$(DEVKIT_LIBS)					\
@@ -181,6 +183,7 @@ gnome_power_manager_LDADD =				\
 	$(GSTREAMER_LIBS)				\
 	$(GNOME_LIBS)					\
 	$(DBUS_LIBS)					\
+	-lm						\
 	$(XRANDR_LIBS)					\
 	$(CANBERRA_LIBS)				\
 	$(LIBNOTIFY_LIBS)				\
@@ -254,6 +257,7 @@ gnome_power_self_test_LDADD =				\
 	$(GSTREAMER_LIBS)				\
 	$(DEVKIT_LIBS)					\
 	$(DBUS_LIBS)					\
+	-lm						\
 	$(LIBNOTIFY_LIBS)				\
 	$(GPM_EXTRA_LIBS)				\
 	$(NULL)