Fix liba52 detection

diff --git a/configure.ac b/configure.ac
index e5985c5aef41388267e847b2c70e3c7bb2ddbce5..8a542f4d447db96d942a9ff97e3a139ee29987c3 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -2761,7 +2761,7 @@ then
         VLC_ADD_CPPFLAGS([a52tofloat32],[${CPPFLAGS_test}])
       ],[
         AC_MSG_ERROR([Could not find liba52 on your system: you may get it from http://liba52.sf.net/. Alternatively you can use --disable-a52 to disable the a52 plugin.])
-        ])
+        ], [$LIBM])
     ],[
       AC_MSG_ERROR([Could not find liba52 on your system: you may get it from http://liba52.sf.net/. Alternatively you can use --disable-a52 to disable the a52 plugin.])
     ])