- Add patch to add -lm to hdiff link

hdf-4.2r2-libm.patch

@@ -0,0 +1,22 @@
+--- 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

hdf.spec

@@ -1,6 +1,6 @@
 Name: hdf
 Version: 4.2r2
-Release: 6%{?dist}
+Release: 7%{?dist}
 Summary: A general purpose library and file format for storing scientific data
 License: BSD
 Group: System Environment/Libraries
@@ -10,6 +10,7 @@ Patch0: hdf-4.2r1p4-maxavailfiles.patch
 Patch1: hdf-4.2r2-ppc.patch
 Patch2: hdf-4.2r2-sparc.patch
 Patch3: hdf-4.2r2-s390.patch
+Patch4: hdf-4.2r2-libm.patch
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildRequires: flex byacc libjpeg-devel zlib-devel
 BuildRequires: gcc-gfortran
@@ -41,6 +42,7 @@ HDF development headers and libraries.
 %patch1 -p1 -b .ppc
 %patch2 -p1 -b .sparc
 %patch3 -p1 -b .s390
+%patch4 -p1 -b .libm
 
 chmod a-x *hdf/*/*.c hdf/*/*.h
 # restore include file timestamps modified by patching
@@ -111,6 +113,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Tue Feb  5 2008 Orion Poplawski <orion@cora.nwra.com> 4.2.r2-7
+- Add patch to add -lm to hdiff link
+
 * Tue Feb  5 2008 Orion Poplawski <orion@cora.nwra.com> 4.2.r2-6
 - Add patch for s390 support (bug #431511)