--- lib/class/Makefile.am.link	2012-10-08 09:10:04.000000000 +0800
+++ lib/class/Makefile.am	2012-10-08 09:11:01.000000000 +0800
@@ -7,3 +7,5 @@
 
 libcm_class_la_SOURCES = cm_class.h cm_class-impl.h \
    classgroup.c modclass.c curve.c class.c pari.c
+
+libcm_class_la_LIBADD = $(top_builddir)/lib/common/libcm_common.la $(top_builddir)/lib/mpfpx/libmpfpx.la