[svn-r6550] Purpose:

To support szip compression in HDF5

Description:
szip compression support is required by NASA ESDIS. The compression algorithm
is a good compression algorithm for scientific data. In HDF5, we add another filter
function to make szip as a default compression package as we did for gzip(or zlib).

H5config.in needs to be regenerated by autoheader for SZIP flags.
Solution:
A new file called H5Zszip.c will be added in the Makefile.in
Flags like: HAVE_FILTER_SZIP    should be auto-generated by autoheader.

Platforms tested:
Since there are changes of configure.in and configure,I didn't use h5committest.                                    I tested with four platforms.
1) Linux 2.4 (eirene)
2) Solaris 2.7(arabica)
3) windows 2000(VS 6.0)
4) SGI IRIX6.5-64(modi4)
For test 1)-3), only basic C tests were done
For modi4 test, I tested 64-bit C,parallel and fortran.                                                         All tests passed, except a warning message from szip library when checksum is used in some order, which doesn't
cause any real problems.

Misc. update:

2 files changed, 13 insertions, 4 deletions

diff --git a/src/H5config.h.in b/src/H5config.h.in
index 9397a22..eb59a6d 100644
--- a/src/H5config.h.in
+++ b/src/H5config.h.in
@@ -21,15 +21,18 @@
 /* Define to 1 if you have the <features.h> header file. */
 #undef HAVE_FEATURES_H
 
-/* Define if support for Fletcher32 checksum is enabled */
-#undef HAVE_FILTER_FLETCHER32
-
 /* Define if support for deflate filter is enabled */
 #undef HAVE_FILTER_DEFLATE
 
+/* Define if support for Fletcher32 checksum is enabled */
+#undef HAVE_FILTER_FLETCHER32
+
 /* Define if support for shuffle filter is enabled */
 #undef HAVE_FILTER_SHUFFLE
 
+/* Define if support for szip filter is enabled */
+#undef HAVE_FILTER_SZIP
+
 /* Define to 1 if you have the `fork' function. */
 #undef HAVE_FORK
 
@@ -161,6 +164,9 @@
 /* Define to 1 if you have the `ssl' library (-lssl). */
 #undef HAVE_LIBSSL
 
+/* Define to 1 if you have the `sz' library (-lsz). */
+#undef HAVE_LIBSZ
+
 /* Define to 1 if you have the `z' library (-lz). */
 #undef HAVE_LIBZ
 
@@ -281,6 +287,9 @@
 /* Define to 1 if you have the <sys/types.h> header file. */
 #undef HAVE_SYS_TYPES_H
 
+/* Define to 1 if you have the <szlib.h> header file. */
+#undef HAVE_SZLIB_H
+
 /* Define if we have thread safe support */
 #undef HAVE_THREADSAFE
 
diff --git a/src/Makefile.in b/src/Makefile.in
index 2fe150b..b108e47 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -42,7 +42,7 @@ LIB_SRC=H5.c H5A.c H5AC.c H5B.c H5D.c H5E.c H5F.c H5Farray.c H5Fcontig.c      \
         H5Tcompound.c H5Tconv.c H5Tcset.c H5Tenum.c H5Tfields.c H5Tfixed.c    \
         H5Tfloat.c H5Tinit.c H5Tnative.c H5Toffset.c H5Topaque.c H5Torder.c   \
         H5Tpad.c H5Tprecis.c H5Tstrpad.c H5Tvlen.c H5TB.c H5TS.c H5V.c H5Z.c  \
-        H5Zdeflate.c H5Zshuffle.c H5Zfletcher32.c
+        H5Zdeflate.c H5Zszip.c H5Zshuffle.c H5Zfletcher32.c
 
 LIB_OBJ=$(LIB_SRC:.c=.lo)