[brasero] Fix build, link libbrasero-burn against libm (for ceil(3))

[Frederic Peters <fpeters src gnome org>]

commit 8410d2f7cddb6f5d102f9a1fa5d60ce50ca08696
Author: FrÃdÃric PÃters <fpeters 0d be>
Date:   Wed Sep 19 11:38:53 2012 +0200

    Fix build, link libbrasero-burn against libm (for ceil(3))

 configure.in                |    4 ++++
 libbrasero-burn/Makefile.am |    3 ++-
 2 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/configure.in b/configure.in
index 4ba113c..9b0df2d 100644
--- a/configure.in
+++ b/configure.in
@@ -138,6 +138,7 @@ dnl ***************** LARGE FILE SUPPORT ***********************
 AC_SYS_LARGEFILE
 
 dnl ********** Required libraries **********************
+
 GLIB_REQUIRED=2.29.14
 GTHREAD_REQUIRED=2.6.0
 GMODULE_REQUIRED=2.6.0
@@ -209,6 +210,9 @@ PKG_CHECK_MODULES(BRASERO_SM,
 AC_SUBST(BRASERO_SM_CFLAGS)
 AC_SUBST(BRASERO_SM_LIBS)
 
+AC_CHECK_LIBM
+AC_SUBST(LIBM)
+
 #
 # GTK+ stuff (taken and adapted from empathy)
 #
diff --git a/libbrasero-burn/Makefile.am b/libbrasero-burn/Makefile.am
index 2e64449..3c723ce 100644
--- a/libbrasero-burn/Makefile.am
+++ b/libbrasero-burn/Makefile.am
@@ -67,7 +67,8 @@ libbrasero_burn3_la_LIBADD =					\
 	$(BRASERO_GTK_LIBS)					\
 	$(BRASERO_GSTREAMER_LIBS)				\
 	$(BRASERO_LIBNOTIFY_LIBS)					\
-	$(BRASERO_CANBERRA_LIBS)
+	$(BRASERO_CANBERRA_LIBS)				\
+	$(LIBM)
 
 libbrasero_burn3_la_LDFLAGS =					\
 	-version-info $(LIBBRASERO_LT_VERSION)			\