[gnome-applets] configure: add -lm dependency on mixer libs

[Ray Strode <halfline src gnome org>]

commit f2a7c6548ad508c94398e10c49c962363e15d739
Author: Ray Strode <rstrode redhat com>
Date:   Wed Sep 19 18:27:22 2012 -0400

    configure: add -lm dependency on mixer libs
    
    the mixer applet requires -lm to build.
    this commit adds that dependency.

 configure.in |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.in b/configure.in
index 7c1c8fc..b318fb5 100644
--- a/configure.in
+++ b/configure.in
@@ -297,6 +297,7 @@ if test "x$enable_mixer" != "xno"; then
         AC_MSG_ERROR([Mixer applet explicitly requested but a compatible gstreamer version was not found])
     fi
 fi
+MIXER_LIBS="$MIXER_LIBS -lm"
 AM_CONDITIONAL(BUILD_MIXER_APPLET, test "x$enable_mixer" = "xyes")
 AC_SUBST(MIXER_CFLAGS)
 AC_SUBST(MIXER_LIBS)