diff -up ast-7.3.1/Makefile.in.libs ast-7.3.1/Makefile.in
--- ast-7.3.1/Makefile.in.libs	2013-08-11 17:01:54.163102367 -0600
+++ ast-7.3.1/Makefile.in	2013-08-11 17:03:15.414491078 -0600
@@ -170,7 +170,7 @@ libast_grf_3_2_la_OBJECTS = $(am_libast_
 libast_grf_5_6_la_LIBADD =
 am_libast_grf_5_6_la_OBJECTS = libast_grf_5_6_la-grf_5.6.lo
 libast_grf_5_6_la_OBJECTS = $(am_libast_grf_5_6_la_OBJECTS)
-libast_pal_la_LIBADD =
+libast_pal_la_LIBADD = -lm
 am__objects_6 = libast_pal_la-pal.lo
 am_libast_pal_la_OBJECTS = $(am__objects_6)
 libast_pal_la_OBJECTS = $(am_libast_pal_la_OBJECTS)