hdf5_ep

[svn-r6768] Purpose:
	Bug Fix

Description:
	The compression stuff includes the "zlib.h" header file. This
	file on the SP machine was including another file which would
	#define const as nothing if the compiler wasn't a Standard C
	compiler.

Solution:
	Included a flag to make the compiler into an ANSI compiler.

Platforms tested:
	Blue (Only affects powerPC computers)

Misc. update: