diff --git a/ChangeLog b/ChangeLog
index 348cc4367b..355e68604d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2007-12-09  Sebastian Dröge  <slomo@circular-chaos.org>
+
+	* configure.ac:
+	  Correctly reset $LIBS to not contain -lm.
+
 2007-12-09  Sebastian Dröge  <slomo@circular-chaos.org>
 
 	Based on a patch by: Kwang Yul Seo <kwangyul dot seo at gmail dot com>
@@ -7,7 +12,7 @@
 	  (gst_cairo_time_overlay_print_smpte_time):
 	  Fix compilation with MSVC by using gst_util_guint64_to_gdouble()
 	  and checking for rint() and implementing it ourself if it doesn't
-	  exist.
+	  exist. Fixes #497293.
 
 2007-12-09  Sebastian Dröge  <slomo@circular-chaos.org>
 
diff --git a/configure.ac b/configure.ac
index 286161b011..b4f76ce490 100644
--- a/configure.ac
+++ b/configure.ac
@@ -221,7 +221,7 @@ dnl *** checks for library functions ***
 LIBS_SAVE=$LIBS
 LIBS="$LIBS $LIBM"
 AC_CHECK_FUNCS(rint)
-$LIBS=$LIB_SAVE
+LIBS=$LIB_SAVE
 
 dnl Check for mmap (needed by electricfence plugin)
 AC_FUNC_MMAP