+Add --without-hdf flag
+
+Prevent automagic dependencies as per:
+ http://www.gentoo.org/proj/en/qa/automagic.xml
+
+--- a/configure.in
++++ b/configure.in
+@@ -49,11 +49,14 @@ LIBS="-lz -lm"
+ # If mounting with shared libraries we may have to specify all possible libraries.
+ # First check with simple LIBS list, if it fails, then expand the list.
+
+-AC_CHECK_LIB(implode, _implode, ,,$LIBDIR)
+-AC_CHECK_LIB(jpeg, jpeg_CreateCompress,,,$LIBDIR)
+-AC_CHECK_LIB(df, DFopen, ,,$LIBDIR)
+-AC_CHECK_LIB(mfhdf, SDstart, ,,$LIBDIR)
+-AC_CHECK_LIB(tsdistk, TKopen, ,,$LIBDIR)
++AC_ARG_WITH([hdf], AS_HELP_STRING([--without-hdf], [Build without hdf library (default: test)]))
++AS_IF([test "x$with_hdf" != "xno"], [
++ AC_CHECK_LIB(implode, _implode, ,,$LIBDIR)
++ AC_CHECK_LIB(jpeg, jpeg_CreateCompress,,,$LIBDIR)
++ AC_CHECK_LIB(df, DFopen, ,,$LIBDIR)
++ AC_CHECK_LIB(mfhdf, SDstart, ,,$LIBDIR)
++ AC_CHECK_LIB(tsdistk, TKopen, ,,$LIBDIR)
++])
+
+ # Because -letor may depend on RSL being installed, just check for
+ # the library libetor.a in a couple of places.