--- HDF4.2r2/mfhdf/hdiff/Makefile.in.libm	2008-02-05 14:36:29.000000000 -0700
+++ HDF4.2r2/mfhdf/hdiff/Makefile.in	2008-02-05 14:36:52.000000000 -0700
@@ -196,7 +196,7 @@
                 hdiff_mattbl.c hdiff_gattr.c hdiff_misc.c hdiff_sds.c       \
                 hdiff_table.c hdiff_vs.c hdiff_dim.c
 
-hdiff_LDADD = ../libsrc/libmfhdf.a $(top_builddir)/hdf/src/libdf.a @LIBS@
+hdiff_LDADD = ../libsrc/libmfhdf.a $(top_builddir)/hdf/src/libdf.a -lm
 hdiff_DEPENDENCIES = $(top_builddir)/hdf/src/libdf.a ../libsrc/libmfhdf.a
 
 #############################################################################
--- HDF4.2r2/mfhdf/hrepack/Makefile.in.libm	2007-09-18 09:12:00.000000000 -0600
+++ HDF4.2r2/mfhdf/hrepack/Makefile.in	2008-02-05 14:58:41.000000000 -0700
@@ -232,7 +232,7 @@
                        ../hdiff/hdiff_sds.c ../hdiff/hdiff_table.c          \
                        ../hdiff/hdiff_vs.c ../hdiff/hdiff_dim.c
 
-test_hrepack_LDADD = ../libsrc/libmfhdf.a $(top_builddir)/hdf/src/libdf.a
+test_hrepack_LDADD = ../libsrc/libmfhdf.a $(top_builddir)/hdf/src/libdf.a -lm
 test_hrepack_DEPENDENCIES = $(top_builddir)/hdf/src/libdf.a ../libsrc/libmfhdf.a
 hrepack_check_SOURCES = hrepack_check.c
 hrepack_check_LDADD = ../libsrc/libmfhdf.a $(top_builddir)/hdf/src/libdf.a