add missing libm to configure.ac

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/configure.ac b/configure.ac
index b3b86fb41ca88522a0df636c12bc40d3ef5422a1..a749e7a69eb8a2cbec7c737b84a98c8d00b4f362 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -200,6 +200,7 @@ lttvwindowincludedir="${includedir}/lttvwindow"
 lttctlincludedir="${includedir}/liblttctl"
 
 AC_SUBST([POPT_LIBS])
+AC_SUBST([M_LIBS])
 AC_SUBST([UTIL_LIBS])
 AC_SUBST(lttvlibdir)
 AC_SUBST(lttvplugindir)