From f7c4277bbbbe531ba37b36bb6b2e1b3f2966efea Mon Sep 17 00:00:00 2001
From: "Robert E. McGrath" <mcgrath@ncsa.uiuc.edu>
Date: Tue, 2 Nov 2004 14:10:24 -0500
Subject: [svn-r9493] Purpose: Fix SZIP filter to dynmically detect encoder.

Description:

Solution:
See:
http://hdf.ncsa.uiuc.edu/RFC/SZIP/Szip_dynamic_12_Oct.pdf

Platforms tested:
verbena, arabica, cobalt.

Note RE testing:
All automatic tests work as before.

The feature is a configuration thing, so the tests are manual.
Tested with the following configs:
  pre-release version of SZIP, with dynamic library,
   1. no SZIP
   2. SZIP, decoder only
   3. SZIP, encoder+decoder
  released (static lib) SZIP
   4. no SZIP
   5. SZIP, decoder only
   6. SZIP, encoder+decoder

  after build, switch szip in LD_LIBRARY_PATH at run time
   7. SZIP decoder
   8. SZIP encoder

Misc. update:
Manifest updated
---
 MANIFEST     |  1 +
 configure    | 13 +++++--------
 configure.in |  9 +++++----
 3 files changed, 11 insertions(+), 12 deletions(-)

diff --git a/MANIFEST b/MANIFEST
index 678cdec..ebe42c8 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -1167,6 +1167,7 @@
 ./tools/h5repack/testh5repack_main.c
 ./tools/h5repack/testh5repack_make.c
 ./tools/h5repack/testh5repack_util.c
+./tools/h5repack/testh5repack_detect_szip.c
 
 ./tools/h5ls/Dependencies
 ./tools/h5ls/Makefile.in
diff --git a/configure b/configure
index f9bfd59..03b2901 100755
--- a/configure
+++ b/configure
@@ -24786,7 +24786,6 @@ fi
 
 
  USE_FILTER_SZIP="no"
- USE_FILTER_SZIP_ENCODER="no"
 
 # Check whether --with-szlib or --without-szlib was given.
 if test "${with_szlib+set}" = set; then
@@ -25280,14 +25279,8 @@ fi
 
 
     if test ${hdf5_cv_szlib_can_encode} = "yes"; then
-
-cat >>confdefs.h <<\_ACEOF
-#define SZIP_CAN_ENCODE 1
-_ACEOF
-
         echo "$as_me:$LINENO: result: yes" >&5
 echo "${ECHO_T}yes" >&6
-        USE_FILTER_SZIP_ENCODER="yes"
     else
         echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
@@ -25297,6 +25290,11 @@ echo "${ECHO_T}no" >&6
         EXTERNAL_FILTERS="${EXTERNAL_FILTERS},"
     fi
     EXTERNAL_FILTERS="${EXTERNAL_FILTERS}szip"
+    if test ${hdf5_cv_szlib_can_encode} = "yes"; then
+        EXTERNAL_FILTERS="${EXTERNAL_FILTERS}(encoder)"
+    else
+        EXTERNAL_FILTERS="${EXTERNAL_FILTERS}(no encoder)"
+    fi
 fi
 
  PABLO=""
@@ -34661,7 +34659,6 @@ s,@AR@,$AR,;t t
 s,@DEPEND@,,;t t
 s,@USE_FILTER_DEFLATE@,$USE_FILTER_DEFLATE,;t t
 s,@USE_FILTER_SZIP@,$USE_FILTER_SZIP,;t t
-s,@USE_FILTER_SZIP_ENCODER@,$USE_FILTER_SZIP_ENCODER,;t t
 s,@PABLO@,$PABLO,;t t
 s,@HAVE_PABLO@,$HAVE_PABLO,;t t
 s,@SSL@,$SSL,;t t
diff --git a/configure.in b/configure.in
index d3033ae..191e89a 100644
--- a/configure.in
+++ b/configure.in
@@ -1043,7 +1043,6 @@ dnl command-line switch. The value is an include path and/or a library path.
 dnl If the library path is specified then it must be preceded by a comma.
 dnl
 AC_SUBST(USE_FILTER_SZIP) USE_FILTER_SZIP="no"
-AC_SUBST(USE_FILTER_SZIP_ENCODER) USE_FILTER_SZIP_ENCODER="no"
 AC_ARG_WITH([szlib],
             [AC_HELP_STRING([--with-szlib=DIR],
                             [Use szlib library for external szlib I/O
@@ -1136,10 +1135,7 @@ if test "x$HAVE_SZLIB" = "xyes" -a "x$HAVE_SZLIB_H" = "xyes"; then
         ], [hdf5_cv_szlib_can_encode=yes], [hdf5_cv_szlib_can_encode=no],)])
 
     if test ${hdf5_cv_szlib_can_encode} = "yes"; then
-        AC_DEFINE([SZIP_CAN_ENCODE], [1],
-                  [Define if szip encoder is present])
         AC_MSG_RESULT([yes])
-        USE_FILTER_SZIP_ENCODER="yes"
     else
         AC_MSG_RESULT([no])
     fi
@@ -1149,6 +1145,11 @@ if test "x$HAVE_SZLIB" = "xyes" -a "x$HAVE_SZLIB_H" = "xyes"; then
         EXTERNAL_FILTERS="${EXTERNAL_FILTERS},"
     fi
     EXTERNAL_FILTERS="${EXTERNAL_FILTERS}szip"
+    if test ${hdf5_cv_szlib_can_encode} = "yes"; then
+        EXTERNAL_FILTERS="${EXTERNAL_FILTERS}(encoder)"
+    else
+        EXTERNAL_FILTERS="${EXTERNAL_FILTERS}(no encoder)"
+    fi
 fi
 
 dnl ----------------------------------------------------------------------
-- 
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