hdf5_ep

[svn-r5048] Purpose:
	Bug Fixes
Description:
	Fixed some bugs. The CPPFLAGS wasn't being included into the
	Makefile. Also, there's a sed script which needed to be pointed to
	with the $(top_srcdir) macro.
Solution:
	Added @CPPFLAGS@ to the CPPFLAGS line and put $(top_srcdir)/ before
	the sed script file's name.
Platforms tested:
	Linux