diff -up ast-8.2.0/Makefile.in.libs ast-8.2.0/Makefile.in
--- ast-8.2.0/Makefile.in.libs	2016-07-05 05:49:50.000713694 -0600
+++ ast-8.2.0/Makefile.in	2016-07-05 05:50:30.970869981 -0600
@@ -334,7 +334,7 @@ libast_grf_5_6_la_LINK = $(LIBTOOL) $(AM
 	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \
 	$(libast_grf_5_6_la_CFLAGS) $(CFLAGS) $(STAR_LDFLAGS) \
 	$(AM_LDFLAGS) $(LDFLAGS) -o $@
-libast_pal_la_LIBADD =
+libast_pal_la_LIBADD = -lm
 am__objects_7 = libast_pal_la-palwrap.lo
 am_libast_pal_la_OBJECTS = $(am__objects_7)
 libast_pal_la_OBJECTS = $(am_libast_pal_la_OBJECTS)