OESS-65 add option to use AEC library in place of SZip

8 files changed, 197 insertions, 184 deletions

diff --git a/CMakeFilters.cmake b/CMakeFilters.cmake
index 5a89564..0d64b55 100644
--- a/CMakeFilters.cmake
+++ b/CMakeFilters.cmake
@@ -9,6 +9,7 @@
 # If you do not have access to either file, you may request a copy from
 # help@hdfgroup.org.
 #
+option (USE_LIBAEC "Use AEC library as SZip Filter" OFF)
 
 include (ExternalProject)
 #option (HDF5_ALLOW_EXTERNAL_SUPPORT "Allow External Library Building (NO GIT TGZ)" "NO")
@@ -32,6 +33,9 @@ if (HDF5_ALLOW_EXTERNAL_SUPPORT MATCHES "GIT" OR HDF5_ALLOW_EXTERNAL_SUPPORT MAT
       message (STATUS "Filter ZLIB file ${ZLIB_URL} not found")
     endif ()
     set (SZIP_URL ${TGZPATH}/${SZIP_TGZ_NAME})
+    if (USE_LIBAEC)
+      set (SZIP_URL ${TGZPATH}/${SZAEC_TGZ_NAME})
+    endif ()
     if (NOT EXISTS "${SZIP_URL}")
       set (HDF5_ENABLE_SZIP_SUPPORT OFF CACHE BOOL "" FORCE)
       message (STATUS "Filter SZIP file ${SZIP_URL} not found")
@@ -54,7 +58,6 @@ if (HDF5_ENABLE_Z_LIB_SUPPORT)
         find_package (ZLIB) # Legacy find
         if (ZLIB_FOUND)
           set (LINK_COMP_LIBS ${LINK_COMP_LIBS} ${ZLIB_LIBRARIES})
-          set (LINK_COMP_SHARED_LIBS ${LINK_COMP_SHARED_LIBS} ${ZLIB_LIBRARIES})
         endif ()
       endif ()
     endif ()
@@ -85,9 +88,6 @@ if (HDF5_ENABLE_Z_LIB_SUPPORT)
   if (H5_HAVE_FILTER_DEFLATE)
     set (EXTERNAL_FILTERS "${EXTERNAL_FILTERS} DEFLATE")
   endif ()
-  if (BUILD_SHARED_LIBS)
-    set (LINK_COMP_SHARED_LIBS ${LINK_COMP_SHARED_LIBS} ${ZLIB_SHARED_LIBRARY})
-  endif ()
   set (LINK_COMP_LIBS ${LINK_COMP_LIBS} ${ZLIB_STATIC_LIBRARY})
   INCLUDE_DIRECTORIES (${ZLIB_INCLUDE_DIRS})
   message (STATUS "Filter ZLIB is ON")
@@ -105,7 +105,6 @@ if (HDF5_ENABLE_SZIP_SUPPORT)
       find_package (SZIP) # Legacy find
       if (SZIP_FOUND)
         set (LINK_COMP_LIBS ${LINK_COMP_LIBS} ${SZIP_LIBRARIES})
-        set (LINK_COMP_SHARED_LIBS ${LINK_COMP_SHARED_LIBS} ${SZIP_LIBRARIES})
       endif ()
     endif ()
   endif ()
@@ -122,13 +121,13 @@ if (HDF5_ENABLE_SZIP_SUPPORT)
       set (H5_HAVE_SZLIB_H 1)
       set (H5_HAVE_LIBSZ 1)
       message (STATUS "Filter SZIP is built")
+      if (USE_LIBAEC)
+        message (STATUS "... with library AEC")
+      endif ()
     else ()
       message (FATAL_ERROR "SZIP is Required for SZIP support in HDF5")
     endif ()
   endif ()
-  if (BUILD_SHARED_LIBS)
-    set (LINK_COMP_SHARED_LIBS ${LINK_COMP_SHARED_LIBS} ${SZIP_SHARED_LIBRARY})
-  endif ()
   set (LINK_COMP_LIBS ${LINK_COMP_LIBS} ${SZIP_STATIC_LIBRARY})
   INCLUDE_DIRECTORIES (${SZIP_INCLUDE_DIRS})
   message (STATUS "Filter SZIP is ON")
diff --git a/bin/release b/bin/release
index 1568e02..a34191e 100755
--- a/bin/release
+++ b/bin/release
@@ -39,36 +39,36 @@ USAGE()
 {
 cat << EOF
 Usage: $0 -d <dir> [--docver BRANCHNAME] [-h] [--nocheck] [--private] <methods> ...
-   -d DIR	The name of the directory where the releas(es) should be
+   -d DIR    The name of the directory where the releas(es) should be
                 placed.
    --docver BRANCHNAME  This is added for 1.8 and beyond to get the correct
                         version of documentation files from the hdf5docs
                         repository.  BRANCHNAME for v1.8 should be hdf5_1_8.
    -h           print the help page.
-   --nocheck	Ignore errors in MANIFEST file.
-   --private	Make a private release with today's date in version information.
-         
+   --nocheck    Ignore errors in MANIFEST file.
+   --private    Make a private release with today's date in version information.
+
 This must be run at the top level of the source directory.
 The other command-line options are the names of the programs to use
 for compressing the resulting tar archive (if none are given then
 "tar" is assumed):
 
-    tar		-- use tar and don't do any compressing.
-    gzip	-- use gzip with "-9" and append ".gz" to the output name.
+    tar        -- use tar and don't do any compressing.
+    gzip    -- use gzip with "-9" and append ".gz" to the output name.
     bzip2       -- use bzip2 with "-9" and append ".bz2" to the output name.
-    zip		-- convert all text files to DOS style and form a zip file for Windows use.
-    cmake-tgz   -- create a tar file using the gzip default level with a build-unix.sh 
+    zip        -- convert all text files to DOS style and form a zip file for Windows use.
+    cmake-tgz   -- create a tar file using the gzip default level with a build-unix.sh
                    command file and all other CMake files needed to build HDF5 source
                    using CMake on unix machines.
     cmake-zip   -- convert all text files to DOS style and create a zip file inluding cmake
-                   scripts and .bat files to build HDF5 source using CMake on Windows. 
-    hpc-cmake-tgz  
-                -- create a tar file using the gzip default level with a build-unix.sh 
+                   scripts and .bat files to build HDF5 source using CMake on Windows.
+    hpc-cmake-tgz
+                -- create a tar file using the gzip default level with a build-unix.sh
                    command file and all other CMake files needed to build HDF5 source
                    using CMake on unix machines, with HDF5options.cmake files for serial
                    and parallel builds on machines requiring batch jobs to run tests.
                    The default is for parallel build, with serial only build by changing
-                   the HDF5options.cmake symlink to ser-HDF5options.cmake.  More 
+                   the HDF5options.cmake symlink to ser-HDF5options.cmake.  More
                    information is available in the README_HPC file.
     doc         -- produce the latest doc tree in addition to the archive.
 
@@ -122,8 +122,8 @@ EOF
 tar2zip()
 {
     if [ $# -ne 3 ]; then
-	echo "usage: tar2zip <tarfilename> <zipfilename>"
-	return 1
+    echo "usage: tar2zip <tarfilename> <zipfilename>"
+    return 1
     fi
     ztmpdir=/tmp/ztmpdir$$
     mkdir -p $ztmpdir
@@ -135,23 +135,23 @@ tar2zip()
     (cd $ztmpdir; tar xf -) < $tarfile
     # sanity check
     if [ ! -d $ztmpdir/$version ]; then
-	echo "untar did not create $ztmpdir/$version source dir"
-	# cleanup
-	rm -rf $ztmpdir
-	return 1
+    echo "untar did not create $ztmpdir/$version source dir"
+    # cleanup
+    rm -rf $ztmpdir
+    return 1
     fi
     # step 2: convert text files
     # There maybe a simpler way to do this.
     # options used in unix2dos:
-    # -k   Keep the date stamp 
+    # -k   Keep the date stamp
     # -q   quiet mode
     # grep redirect output to /dev/null because -q or -s are not portable.
     find $ztmpdir/$version | \
-	while read inf; do \
-	    if file $inf | grep "$inf\: .*text" > /dev/null 2>&1 ; then \
-		unix2dos -q -k $inf; \
-	    fi\
-	done
+    while read inf; do \
+        if file $inf | grep "$inf\: .*text" > /dev/null 2>&1 ; then \
+        unix2dos -q -k $inf; \
+        fi\
+    done
     # step 3: make zipball
     # -9 maximum compression
     # -y Store symbolic links as such in the zip archive
@@ -177,14 +177,14 @@ tar2zip()
 #    Note: do this in a temporary directory to avoid changing
 #    the original source directory which may be around.
 # 2. add build-unix.sh script.
-# 3. add SZIP.tar.gz, ZLib.tar.gz and cmake files to top level directory.
+# 3. add LIBAEC.tar.gz, ZLib.tar.gz and cmake files to top level directory.
 # 4. create gzipped tar file with these contents:
 #        build-unix.sh          script
 #        hdf5-<version>         source code directory extracted from tar file
 #        CTestScript.cmake      cmake file copied from <hdf5 source code>/config/cmake/scripts
 #        HDF5config.cmake       cmake file copied from <hdf5 source code>/config/cmake/scripts
 #        HDF5options.cmake      cmake file copied from <hdf5 source code>/config/cmake/scripts
-#        SZip.tar.gz            copied from /mnt/scr1/pre-release/hdf5/CMake
+#        LIBAEC.tar.gz          copied from /mnt/scr1/pre-release/hdf5/CMake
 #        ZLib.tar.gz            copied from /mnt/scr1/pre-release/hdf5/CMake
 
 
@@ -197,13 +197,13 @@ tar2zip()
 #
  # need function to create another temporary directory, extract the
             # $tmpdir/$HDF5_VERS.tar into it, create build-VS*.bat files,
-            # add CTestScript.cmake, HDF5config.cmake, SZIP.tar.gz
+            # add CTestScript.cmake, HDF5config.cmake, LIBAEC.tar.gz
             # ZLib.tar.gz, HDF5 examples, and then zip it.
 tar2cmakezip()
 {
     if [ $# -ne 3 ]; then
-	echo "usage: tar2cmakezip <tarfilename> <zipfilename>"
-	return 1
+    echo "usage: tar2cmakezip <tarfilename> <zipfilename>"
+    return 1
     fi
     cmziptmpdir=/tmp/cmziptmpdir$$
     cmziptmpsubdir=$cmziptmpdir/CMake-$HDF5_VERS
@@ -216,10 +216,10 @@ tar2cmakezip()
     (cd $cmziptmpsubdir; tar xf -) < $tarfile
     # sanity check
     if [ ! -d $cmziptmpsubdir/$version ]; then
-	echo "untar did not create $cmziptmpsubdir/$version source dir"
-	# cleanup
-	rm -rf $cmziptmpdir
-	return 1
+    echo "untar did not create $cmziptmpsubdir/$version source dir"
+    # cleanup
+    rm -rf $cmziptmpdir
+    return 1
     fi
 
     # step 2: add batch file for building CMake on window
@@ -230,8 +230,8 @@ tar2cmakezip()
     (cd $cmziptmpsubdir; echo "ctest -S HDF5config.cmake,BUILD_GENERATOR=VS2017 -C Release -V -O hdf5.log" > build-VS2017-32.bat; chmod 755 build-VS2017-32.bat)
     (cd $cmziptmpsubdir; echo "ctest -S HDF5config.cmake,BUILD_GENERATOR=VS201764 -C Release -V -O hdf5.log" > build-VS2017-64.bat; chmod 755 build-VS2017-64.bat)
 
-    # step 3: add SZIP.tar.gz, ZLib.tar.gz and cmake files
-    cp /mnt/scr1/pre-release/hdf5/CMake/SZip.tar.gz $cmziptmpsubdir
+    # step 3: add LIBAEC.tar.gz, ZLib.tar.gz and cmake files
+    cp /mnt/scr1/pre-release/hdf5/CMake/LIBAEC.tar.gz $cmziptmpsubdir
     cp /mnt/scr1/pre-release/hdf5/CMake/ZLib.tar.gz $cmziptmpsubdir
     cp /mnt/scr1/pre-release/hdf5/CMake/HDF5Examples-1.14.1-Source.zip $cmziptmpsubdir
     cp $cmziptmpsubdir/$version/config/cmake/scripts/CTestScript.cmake $cmziptmpsubdir
@@ -241,15 +241,15 @@ tar2cmakezip()
     # step 4: convert text files
     # There maybe a simpler way to do this.
     # options used in unix2dos:
-    # -k   Keep the date stamp 
+    # -k   Keep the date stamp
     # -q   quiet mode
     # grep redirect output to /dev/null because -q or -s are not portable.
     find $cmziptmpsubdir/$version | \
-	while read inf; do \
-	    if file $inf | grep "$inf\: .*text" > /dev/null 2>&1 ; then \
-		unix2dos -q -k $inf; \
-	    fi\
-	done
+    while read inf; do \
+        if file $inf | grep "$inf\: .*text" > /dev/null 2>&1 ; then \
+        unix2dos -q -k $inf; \
+        fi\
+    done
 
     # step 3: make zipball
     # -9 maximum compression
@@ -276,14 +276,14 @@ tar2cmakezip()
 #    Note: do this in a temporary directory to avoid changing
 #    the original source directory which may be around.
 # 2. add build-unix.sh script.
-# 3. add SZIP.tar.gz, ZLib.tar.gz and cmake files to top level directory.
+# 3. add LIBAEC.tar.gz, ZLib.tar.gz and cmake files to top level directory.
 # 4. create gzipped tar file with these contents:
 #        build-unix.sh          script
 #        hdf5-<version>         source code directory extracted from tar file
 #        CTestScript.cmake      cmake file copied from <hdf5 source code>/config/cmake/scripts
 #        HDF5config.cmake       cmake file copied from <hdf5 source code>/config/cmake/scripts
 #        HDF5options.cmake      cmake file copied from <hdf5 source code>/config/cmake/scripts
-#        SZip.tar.gz            copied from /mnt/scr1/pre-release/hdf5/CMake
+#        LIBAEC.tar.gz          copied from /mnt/scr1/pre-release/hdf5/CMake
 #        ZLib.tar.gz            copied from /mnt/scr1/pre-release/hdf5/CMake
 
 
@@ -296,13 +296,13 @@ tar2cmakezip()
 #
  # need function to create another temporary directory, extract the
             # $tmpdir/$HDF5_VERS.tar into it, create build-unix.sh,
-            # add CTestScript.cmake, HDF5config.cmake, SZIP.tar.gz
+            # add CTestScript.cmake, HDF5config.cmake, LIBAEC.tar.gz
             # ZLib.tar.gz, HDF5 examples, and then tar.gz it.
 tar2cmaketgz()
 {
     if [ $# -ne 3 ]; then
-	echo "usage: tar2cmaketgz <tarfilename> <tgzfilename>"
-	return 1
+    echo "usage: tar2cmaketgz <tarfilename> <tgzfilename>"
+    return 1
     fi
     cmgztmpdir=/tmp/cmgztmpdir$$
     cmgztmpsubdir=$cmgztmpdir/CMake-$HDF5_VERS
@@ -315,25 +315,25 @@ tar2cmaketgz()
     (cd $cmgztmpsubdir; tar xf -) < $tarfile
     # sanity check
     if [ ! -d $cmgztmpsubdir/$version ]; then
-	echo "untar did not create $cmgztmpsubdir/$version source dir"
-	# cleanup
-	rm -rf $cmgztmpdir
-	return 1
+    echo "untar did not create $cmgztmpsubdir/$version source dir"
+    # cleanup
+    rm -rf $cmgztmpdir
+    return 1
     fi
 
 
     # step 2: add build-unix.sh script
     (cd $cmgztmpsubdir; echo "ctest -S HDF5config.cmake,BUILD_GENERATOR=Unix -C Release -V -O hdf5.log" > build-unix.sh; chmod 755 build-unix.sh)
 
-    # step 3: add SZIP.tar.gz, ZLib.tar.gz and cmake files
-    cp /mnt/scr1/pre-release/hdf5/CMake/SZip.tar.gz $cmgztmpsubdir
+    # step 3: add LIBAEC.tar.gz, ZLib.tar.gz and cmake files
+    cp /mnt/scr1/pre-release/hdf5/CMake/LIBAEC.tar.gz $cmgztmpsubdir
     cp /mnt/scr1/pre-release/hdf5/CMake/ZLib.tar.gz $cmgztmpsubdir
     cp /mnt/scr1/pre-release/hdf5/CMake/HDF5Examples-1.14.1-Source.tar.gz $cmgztmpsubdir
     cp $cmgztmpsubdir/$version/config/cmake/scripts/CTestScript.cmake $cmgztmpsubdir
     cp $cmgztmpsubdir/$version/config/cmake/scripts/HDF5config.cmake $cmgztmpsubdir
     cp $cmgztmpsubdir/$version/config/cmake/scripts/HDF5options.cmake $cmgztmpsubdir
-    tar czf $DEST/CMake-$HDF5_VERS.tar.gz -C $cmgztmpdir . || exit 1 
-                 
+    tar czf $DEST/CMake-$HDF5_VERS.tar.gz -C $cmgztmpdir . || exit 1
+
     # cleanup
     rm -rf $cmgztmpdir
 }
@@ -353,14 +353,14 @@ tar2cmaketgz()
 #    Note: do this in a temporary directory to avoid changing
 #    the original source directory which may be around.
 # 2. add build-unix.sh script.
-# 3. add SZIP.tar.gz, ZLib.tar.gz and cmake files to top level directory.
+# 3. add LIBAEC.tar.gz, ZLib.tar.gz and cmake files to top level directory.
 # 4. create gzipped tar file with these contents:
 #        build-unix.sh          script
 #        hdf5-<version>         source code directory extracted from tar file
 #        CTestScript.cmake      cmake file copied from <hdf5 source code>/config/cmake/scripts
 #        HDF5config.cmake       cmake file copied from <hdf5 source code>/config/cmake/scripts
 #        HDF5options.cmake      cmake file copied from <hdf5 source code>/config/cmake/scripts
-#        SZip.tar.gz            copied from /mnt/scr1/pre-release/hdf5/CMake
+#        LIBAEC.tar.gz          copied from /mnt/scr1/pre-release/hdf5/CMake
 #        ZLib.tar.gz            copied from /mnt/scr1/pre-release/hdf5/CMake
 #
 # 5. For HPC-CMake tgz file the following are also needed in the top-level directory:
@@ -379,13 +379,13 @@ tar2cmaketgz()
 #
  # need function to create another temporary directory, extract the
             # $tmpdir/$HDF5_VERS.tar into it, create build-unix.sh,
-            # add CTestScript.cmake, HDF5config.cmake, SZIP.tar.gz
+            # add CTestScript.cmake, HDF5config.cmake, LIBAEC.tar.gz
             # ZLib.tar.gz, HDF5 examples, and then tar.gz it.
 tar2hpccmaketgz()
 {
     if [ $# -ne 3 ]; then
-	echo "usage: tar2hpccmaketgz <tarfilename> <tgzfilename>"
-	return 1
+    echo "usage: tar2hpccmaketgz <tarfilename> <tgzfilename>"
+    return 1
     fi
     cmgztmpdir=/tmp/cmgztmpdir$$
     cmgztmpsubdir=$cmgztmpdir/HPC-CMake-$HDF5_VERS
@@ -398,18 +398,18 @@ tar2hpccmaketgz()
     (cd $cmgztmpsubdir; tar xf -) < $tarfile
     # sanity check
     if [ ! -d $cmgztmpsubdir/$version ]; then
-	echo "untar did not create $cmgztmpsubdir/$version source dir"
-	# cleanup
-	rm -rf $cmgztmpdir
-	return 1
+    echo "untar did not create $cmgztmpsubdir/$version source dir"
+    # cleanup
+    rm -rf $cmgztmpdir
+    return 1
     fi
 
 
     # step 2: add build-unix.sh script
     (cd $cmgztmpsubdir; echo "ctest -S HDF5config.cmake,BUILD_GENERATOR=Unix -C Release -V -O hdf5.log" > build-unix.sh; chmod 755 build-unix.sh)
 
-    # step 3: add SZIP.tar.gz, ZLib.tar.gz and cmake files
-    cp /mnt/scr1/pre-release/hdf5/CMake/SZip.tar.gz $cmgztmpsubdir
+    # step 3: add LIBAEC.tar.gz, ZLib.tar.gz and cmake files
+    cp /mnt/scr1/pre-release/hdf5/CMake/LIBAEC.tar.gz $cmgztmpsubdir
     cp /mnt/scr1/pre-release/hdf5/CMake/ZLib.tar.gz $cmgztmpsubdir
     cp /mnt/scr1/pre-release/hdf5/CMake/HDF5Examples-1.14.1-Source.tar.gz $cmgztmpsubdir
     cp $cmgztmpsubdir/$version/config/cmake/scripts/CTestScript.cmake $cmgztmpsubdir
@@ -419,8 +419,8 @@ tar2hpccmaketgz()
     cp $cmgztmpsubdir/$version/config/cmake/scripts/HPC/ser-HDF5options.cmake $cmgztmpsubdir
     cp $cmgztmpsubdir/$version/config/cmake/scripts/HPC/par-HDF5options.cmake $cmgztmpsubdir
     (cd $cmgztmpsubdir; ln -s par-HDF5options.cmake HDF5options.cmake)
-    tar czf $DEST/HPC-CMake-$HDF5_VERS.tar.gz -C $cmgztmpdir . || exit 1 
-                 
+    tar czf $DEST/HPC-CMake-$HDF5_VERS.tar.gz -C $cmgztmpdir . || exit 1
+
     # cleanup
     rm -rf $cmgztmpdir
 }
@@ -442,7 +442,7 @@ check=yes
 release_date=`date +%F`
 today=`date +%Y%m%d`
 pmode='no'
-tmpdir="../#release_tmp.$$"	# tmp work directory
+tmpdir="../#release_tmp.$$"    # tmp work directory
 DOC_URL=https://git@bitbucket.hdfgroup.org/scm/hdffv/hdf5doc.git
 CPPLUS_RM_NAME=cpplus_RM
 MAINT_MODE_ENABLED=""
@@ -459,11 +459,11 @@ fi
 RESTORE_VERSION()
 {
     if [ X-${VERS_OLD} != X- ]; then
-	echo restoring version information back to $VERS_OLD
-	rm -f config/lt_vers.am
-	cp $tmpdir/lt_vers.am config/lt_vers.am
-	bin/h5vers -s $VERS_OLD
-	VERS_OLD=
+    echo restoring version information back to $VERS_OLD
+    rm -f config/lt_vers.am
+    cp $tmpdir/lt_vers.am config/lt_vers.am
+    bin/h5vers -s $VERS_OLD
+    VERS_OLD=
     fi
 }
 
@@ -473,32 +473,32 @@ while [ -n "$1" ]; do
     arg=$1
     shift
     case "$arg" in
-	-d)
-	    DEST=$1
-	    shift
-	    ;;
-	--nocheck)
-	    check=no
-	    ;;
-	-h)
-	    USAGE
-	    exit 0
-	    ;;
-	--private)
-	    pmode=yes
-	    ;;
+    -d)
+        DEST=$1
+        shift
+        ;;
+    --nocheck)
+        check=no
+        ;;
+    -h)
+        USAGE
+        exit 0
+        ;;
+    --private)
+        pmode=yes
+        ;;
         --docver)
             DOCVERSION=$1
             shift
             ;;
-	-*)
-	    echo "Unknown switch: $arg" 1>&2
-	    USAGE
-	    exit 1
-	    ;;
-	*)
-	    methods="$methods $arg"
-	    ;;
+    -*)
+        echo "Unknown switch: $arg" 1>&2
+        USAGE
+        exit 1
+        ;;
+    *)
+        methods="$methods $arg"
+        ;;
     esac
 done
 
@@ -548,12 +548,12 @@ if [ "X$fail" = "Xyes" ]; then
         echo ""
         echo "Note!  If you are running bin/release in a development branch"
         echo "later than v 1.8 the MANIFEST check is expected to fail when"
-        echo "autogen.sh has not been run successfully. Either run autogen.sh " 
+        echo "autogen.sh has not been run successfully. Either run autogen.sh "
         echo "with /usr/hdf/bin/AUTOTOOLS at the beginning of PATH or add the"
         echo "--nocheck argument to the bin/release command."
         exit 1
     else
-	echo "Continuing anyway..."
+    echo "Continuing anyway..."
     fi
 fi
 
@@ -587,7 +587,7 @@ test "$verbose" && echo "   Running tar..." 1>&2
 ( \
     cd $tmpdir; \
     tar cf $HDF5_VERS.tar $HDF5_VERS/Makefile \
-	`sed 's/^\.\//hdf5-'$VERS'\//' $MANIFEST` || exit 1 \
+    `sed 's/^\.\//hdf5-'$VERS'\//' $MANIFEST` || exit 1 \
 )
 
 # Compress
@@ -595,61 +595,61 @@ MD5file=$HDF5_VERS.md5
 cp /dev/null $DEST/$MD5file
 for comp in $methods; do
     case $comp in
-	tar)
-	    cp -p $tmpdir/$HDF5_VERS.tar $DEST/$HDF5_VERS.tar
-	    (cd $DEST; md5sum $HDF5_VERS.tar >> $MD5file) 
-	    ;;
-	gzip)
-	    test "$verbose" && echo "   Running gzip..." 1>&2
-	    gzip -9 <$tmpdir/$HDF5_VERS.tar >$DEST/$HDF5_VERS.tar.gz
-	    (cd $DEST; md5sum $HDF5_VERS.tar.gz >> $MD5file) 
-	    ;;
+    tar)
+        cp -p $tmpdir/$HDF5_VERS.tar $DEST/$HDF5_VERS.tar
+        (cd $DEST; md5sum $HDF5_VERS.tar >> $MD5file)
+        ;;
+    gzip)
+        test "$verbose" && echo "   Running gzip..." 1>&2
+        gzip -9 <$tmpdir/$HDF5_VERS.tar >$DEST/$HDF5_VERS.tar.gz
+        (cd $DEST; md5sum $HDF5_VERS.tar.gz >> $MD5file)
+        ;;
         cmake-tgz)
-	    test "$verbose" && echo "   Creating CMake tar.gz file..." 1>&2
-	    tar2cmaketgz $HDF5_VERS $tmpdir/$HDF5_VERS.tar $DEST/CMake-$HDF5_VERS.tar.gz 1>&2
-	    (cd $DEST; md5sum CMake-$HDF5_VERS.tar.gz >> $MD5file) 
+        test "$verbose" && echo "   Creating CMake tar.gz file..." 1>&2
+        tar2cmaketgz $HDF5_VERS $tmpdir/$HDF5_VERS.tar $DEST/CMake-$HDF5_VERS.tar.gz 1>&2
+        (cd $DEST; md5sum CMake-$HDF5_VERS.tar.gz >> $MD5file)
             ;;
         hpc-cmake-tgz)
-	    test "$verbose" && echo "   Creating HPC-CMake tar.gz file..." 1>&2
-	    tar2hpccmaketgz $HDF5_VERS $tmpdir/$HDF5_VERS.tar $DEST/HPC-CMake-$HDF5_VERS.tar.gz 1>&2
-	    (cd $DEST; md5sum HPC-CMake-$HDF5_VERS.tar.gz >> $MD5file) 
+        test "$verbose" && echo "   Creating HPC-CMake tar.gz file..." 1>&2
+        tar2hpccmaketgz $HDF5_VERS $tmpdir/$HDF5_VERS.tar $DEST/HPC-CMake-$HDF5_VERS.tar.gz 1>&2
+        (cd $DEST; md5sum HPC-CMake-$HDF5_VERS.tar.gz >> $MD5file)
             ;;
-	bzip2)
-	    test "$verbose" && echo "   Running bzip2..." 1>&2
-	    bzip2 -9 <$tmpdir/$HDF5_VERS.tar >$DEST/$HDF5_VERS.tar.bz2
-	    (cd $DEST; md5sum $HDF5_VERS.tar.bz2 >> $MD5file) 
-	    ;;
-	zip)
-	    test "$verbose" && echo "   Creating zip ball..." 1>&2
-	    tar2zip $HDF5_VERS $tmpdir/$HDF5_VERS.tar $DEST/$HDF5_VERS.zip 1>&2
-	    (cd $DEST; md5sum $HDF5_VERS.zip >> $MD5file) 
-	    ;;
+    bzip2)
+        test "$verbose" && echo "   Running bzip2..." 1>&2
+        bzip2 -9 <$tmpdir/$HDF5_VERS.tar >$DEST/$HDF5_VERS.tar.bz2
+        (cd $DEST; md5sum $HDF5_VERS.tar.bz2 >> $MD5file)
+        ;;
+    zip)
+        test "$verbose" && echo "   Creating zip ball..." 1>&2
+        tar2zip $HDF5_VERS $tmpdir/$HDF5_VERS.tar $DEST/$HDF5_VERS.zip 1>&2
+        (cd $DEST; md5sum $HDF5_VERS.zip >> $MD5file)
+        ;;
         cmake-zip)
             test "$verbose" && echo "   Creating CMake-zip ball..." 1>&2
             tar2cmakezip $HDF5_VERS $tmpdir/$HDF5_VERS.tar $DEST/CMake-$HDF5_VERS.zip 1>&2
             (cd $DEST; md5sum CMake-$HDF5_VERS.zip >> $MD5file)
             ;;
-	doc)
+    doc)
             if [ "${DOCVERSION}" = "" ]; then
                 DOCVERSION=master
             fi
-	    test "$verbose" && echo "   Creating docs..." 1>&2
-	    # Check out docs from git repo
-	    (cd $tmpdir; git clone -q $DOC_URL ${DOCVERSION} > /dev/null) || exit 1
+        test "$verbose" && echo "   Creating docs..." 1>&2
+        # Check out docs from git repo
+        (cd $tmpdir; git clone -q $DOC_URL ${DOCVERSION} > /dev/null) || exit 1
             # Create doxygen C++ RM
-	    (cd c++/src && doxygen cpp_doc_config > /dev/null ) || exit 1
-	    # Replace version of C++ RM with just-created version
-	    rm -rf $tmpdir/${DOCVERSION}/html/$CPPLUS_RM_NAME || exit 1
-	    mv c++/src/$CPPLUS_RM_NAME $tmpdir/${DOCVERSION}/html/$CPPLUS_RM_NAME || exit 1
+        (cd c++/src && doxygen cpp_doc_config > /dev/null ) || exit 1
+        # Replace version of C++ RM with just-created version
+        rm -rf $tmpdir/${DOCVERSION}/html/$CPPLUS_RM_NAME || exit 1
+        mv c++/src/$CPPLUS_RM_NAME $tmpdir/${DOCVERSION}/html/$CPPLUS_RM_NAME || exit 1
             # Compress the docs and move them to the release area
-	    mv $tmpdir/${DOCVERSION} $tmpdir/${HDF5_VERS}_docs || exit 1
-	    (cd $tmpdir && tar cf ${HDF5_VERS}_docs.tar ${HDF5_VERS}_docs) || exit 1
-	    mv $tmpdir/${HDF5_VERS}_docs.tar $DEST || exit 1
-	    ;;
-	*)
-	    echo "***Error*** Unknown method $comp"
-	    exit 1
-	    ;;
+        mv $tmpdir/${DOCVERSION} $tmpdir/${HDF5_VERS}_docs || exit 1
+        (cd $tmpdir && tar cf ${HDF5_VERS}_docs.tar ${HDF5_VERS}_docs) || exit 1
+        mv $tmpdir/${HDF5_VERS}_docs.tar $DEST || exit 1
+        ;;
+    *)
+        echo "***Error*** Unknown method $comp"
+        exit 1
+        ;;
     esac
 done
 
diff --git a/config/cmake/cacheinit.cmake b/config/cmake/cacheinit.cmake
index 5254115..4efb185 100644
--- a/config/cmake/cacheinit.cmake
+++ b/config/cmake/cacheinit.cmake
@@ -43,6 +43,8 @@ set_property (CACHE HDF5_ALLOW_EXTERNAL_SUPPORT PROPERTY STRINGS NO GIT TGZ)
 set (ZLIB_TGZ_NAME "ZLib.tar.gz" CACHE STRING "Use ZLib from compressed file" FORCE)
 
 set (SZIP_TGZ_NAME "SZip.tar.gz" CACHE STRING "Use SZip from compressed file" FORCE)
+set (SZAEC_TGZ_NAME "LIBAEC.tar.gz" CACHE STRING "Use SZip AEC from compressed file" FORCE)
+set (USE_LIBAEC ON CACHE BOOL "Use libaec szip replacement" FORCE)
 
 set (ZLIB_PACKAGE_NAME "zlib" CACHE STRING "Name of ZLIB package" FORCE)
 
diff --git a/config/cmake/mccacheinit.cmake b/config/cmake/mccacheinit.cmake
index 1608202..f4bfb07 100644
--- a/config/cmake/mccacheinit.cmake
+++ b/config/cmake/mccacheinit.cmake
@@ -51,6 +51,8 @@ set_property (CACHE HDF5_ALLOW_EXTERNAL_SUPPORT PROPERTY STRINGS NO GIT TGZ)
 set (ZLIB_TGZ_NAME "ZLib.tar.gz" CACHE STRING "Use ZLib from compressed file" FORCE)
 
 set (SZIP_TGZ_NAME "SZip.tar.gz" CACHE STRING "Use SZip from compressed file" FORCE)
+set (SZAEC_TGZ_NAME "LIBAEC.tar.gz" CACHE STRING "Use SZip AEC from compressed file" FORCE)
+set (USE_LIBAEC ON CACHE BOOL "Use libaec szip replacement" FORCE)
 
 set (CMAKE_BUILD_TYPE "Debug" CACHE STRING "Build Debug" FORCE)
 
diff --git a/config/cmake_ext_mod/HDFLibMacros.cmake b/config/cmake_ext_mod/HDFLibMacros.cmake
index 9df2b4b..cbca47f 100644
--- a/config/cmake_ext_mod/HDFLibMacros.cmake
+++ b/config/cmake_ext_mod/HDFLibMacros.cmake
@@ -20,7 +20,7 @@ macro (EXTERNAL_JPEG_LIBRARY compress_type jpeg_pic)
         GIT_TAG ${JPEG_BRANCH}
         INSTALL_COMMAND ""
         CMAKE_ARGS
-            -DBUILD_SHARED_LIBS:BOOL=${BUILD_SHARED_LIBS}
+            -DBUILD_SHARED_LIBS:BOOL=OFF
             -DJPEG_PACKAGE_EXT:STRING=${HDF_PACKAGE_EXT}
             -DJPEG_EXTERNALLY_CONFIGURED:BOOL=OFF
             -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
@@ -39,7 +39,7 @@ macro (EXTERNAL_JPEG_LIBRARY compress_type jpeg_pic)
         URL_MD5 ""
         INSTALL_COMMAND ""
         CMAKE_ARGS
-            -DBUILD_SHARED_LIBS:BOOL=${BUILD_SHARED_LIBS}
+            -DBUILD_SHARED_LIBS:BOOL=OFF
             -DJPEG_PACKAGE_EXT:STRING=${HDF_PACKAGE_EXT}
             -DJPEG_EXTERNALLY_CONFIGURED:BOOL=OFF
             -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
@@ -62,14 +62,6 @@ macro (EXTERNAL_JPEG_LIBRARY compress_type jpeg_pic)
   add_dependencies (${HDF_PACKAGE_NAMESPACE}jpeg-static JPEG)
   set (JPEG_STATIC_LIBRARY "${HDF_PACKAGE_NAMESPACE}jpeg-static")
   set (JPEG_LIBRARIES ${JPEG_STATIC_LIBRARY})
-  if (BUILD_SHARED_LIBS)
-    # Create imported target jpeg-shared
-    add_library(${HDF_PACKAGE_NAMESPACE}jpeg-shared SHARED IMPORTED)
-    HDF_IMPORT_SET_LIB_OPTIONS (${HDF_PACKAGE_NAMESPACE}jpeg-shared "jpeg" SHARED "")
-    add_dependencies (${HDF_PACKAGE_NAMESPACE}jpeg-shared JPEG)
-    set (JPEG_SHARED_LIBRARY "${HDF_PACKAGE_NAMESPACE}jpeg-shared")
-    set (JPEG_LIBRARIES ${JPEG_LIBRARIES} ${JPEG_SHARED_LIBRARY})
-  endif ()
 
   set (JPEG_INCLUDE_DIR_GEN "${BINARY_DIR}")
   set (JPEG_INCLUDE_DIR "${SOURCE_DIR}/src")
@@ -97,7 +89,7 @@ macro (EXTERNAL_SZIP_LIBRARY compress_type encoding)
         GIT_TAG ${SZIP_BRANCH}
         INSTALL_COMMAND ""
         CMAKE_ARGS
-            -DBUILD_SHARED_LIBS:BOOL=${BUILD_SHARED_LIBS}
+            -DBUILD_SHARED_LIBS:BOOL=OFF
             -DSZIP_PACKAGE_EXT:STRING=${HDF_PACKAGE_EXT}
             -DSZIP_EXTERNALLY_CONFIGURED:BOOL=OFF
             -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
@@ -117,7 +109,7 @@ macro (EXTERNAL_SZIP_LIBRARY compress_type encoding)
         URL_MD5 ""
         INSTALL_COMMAND ""
         CMAKE_ARGS
-            -DBUILD_SHARED_LIBS:BOOL=${BUILD_SHARED_LIBS}
+            -DBUILD_SHARED_LIBS:BOOL=OFF
             -DSZIP_PACKAGE_EXT:STRING=${HDF_PACKAGE_EXT}
             -DSZIP_EXTERNALLY_CONFIGURED:BOOL=OFF
             -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
@@ -136,19 +128,21 @@ macro (EXTERNAL_SZIP_LIBRARY compress_type encoding)
 
 ##include (${BINARY_DIR}/${SZIP_PACKAGE_NAME}${HDF_PACKAGE_EXT}-targets.cmake)
 # Create imported target szip-static
-  add_library(${HDF_PACKAGE_NAMESPACE}szip-static STATIC IMPORTED)
-  HDF_IMPORT_SET_LIB_OPTIONS (${HDF_PACKAGE_NAMESPACE}szip-static "szip" STATIC "")
-  add_dependencies (${HDF_PACKAGE_NAMESPACE}szip-static SZIP)
-  set (SZIP_STATIC_LIBRARY "${HDF_PACKAGE_NAMESPACE}szip-static")
-  set (SZIP_LIBRARIES ${SZIP_STATIC_LIBRARY})
-  if (BUILD_SHARED_LIBS)
-    # Create imported target szip-shared
-    add_library(${HDF_PACKAGE_NAMESPACE}szip-shared SHARED IMPORTED)
-    HDF_IMPORT_SET_LIB_OPTIONS (${HDF_PACKAGE_NAMESPACE}szip-shared "szip" SHARED "")
-    add_dependencies (${HDF_PACKAGE_NAMESPACE}szip-shared SZIP)
-    set (SZIP_SHARED_LIBRARY "${HDF_PACKAGE_NAMESPACE}szip-shared")
-    set (SZIP_LIBRARIES ${SZIP_LIBRARIES} ${SZIP_SHARED_LIBRARY})
+  if (USE_LIBAEC)
+    add_library(${HDF_PACKAGE_NAMESPACE}szip-static STATIC IMPORTED)
+    HDF_IMPORT_SET_LIB_OPTIONS (${HDF_PACKAGE_NAMESPACE}szip-static "sz" STATIC "")
+    add_dependencies (${HDF_PACKAGE_NAMESPACE}szip-static SZIP)
+    add_library(${HDF_PACKAGE_NAMESPACE}szaec-static STATIC IMPORTED)
+    HDF_IMPORT_SET_LIB_OPTIONS (${HDF_PACKAGE_NAMESPACE}szaec-static "aec" STATIC "")
+    add_dependencies (${HDF_PACKAGE_NAMESPACE}szaec-static SZIP)
+    set (SZIP_STATIC_LIBRARY "${HDF_PACKAGE_NAMESPACE}szip-static;${HDF_PACKAGE_NAMESPACE}szaec-static")
+  else ()
+    add_library(${HDF_PACKAGE_NAMESPACE}szip-static STATIC IMPORTED)
+    HDF_IMPORT_SET_LIB_OPTIONS (${HDF_PACKAGE_NAMESPACE}szip-static "szip" STATIC "")
+    add_dependencies (${HDF_PACKAGE_NAMESPACE}szip-static SZIP)
+    set (SZIP_STATIC_LIBRARY "${HDF_PACKAGE_NAMESPACE}szip-static")
   endif ()
+  set (SZIP_LIBRARIES ${SZIP_STATIC_LIBRARY})
 
   set (SZIP_INCLUDE_DIR_GEN "${BINARY_DIR}")
   set (SZIP_INCLUDE_DIR "${SOURCE_DIR}/src")
@@ -158,11 +152,15 @@ endmacro ()
 
 #-------------------------------------------------------------------------------
 macro (PACKAGE_SZIP_LIBRARY compress_type)
+  set (SZIP_HDR "SZconfig")
+  if (USE_LIBAEC)
+    set (SZIP_HDR "libaec_Export")
+  endif ()
   add_custom_target (SZIP-GenHeader-Copy ALL
-      COMMAND ${CMAKE_COMMAND} -E copy_if_different ${SZIP_INCLUDE_DIR_GEN}/SZconfig.h ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/
-      COMMENT "Copying ${SZIP_INCLUDE_DIR_GEN}/SZconfig.h to ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/"
+      COMMAND ${CMAKE_COMMAND} -E copy_if_different ${SZIP_INCLUDE_DIR_GEN}/${SZIP_HDR}.h ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/
+      COMMENT "Copying ${SZIP_INCLUDE_DIR_GEN}/${SZIP_HDR}.h to ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/"
   )
-  set (EXTERNAL_HEADER_LIST ${EXTERNAL_HEADER_LIST} ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/SZconfig.h)
+  set (EXTERNAL_HEADER_LIST ${EXTERNAL_HEADER_LIST} ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${SZIP_HDR}.h)
   if (${compress_type} MATCHES "GIT" OR ${compress_type} MATCHES "TGZ")
     add_dependencies (SZIP-GenHeader-Copy SZIP)
   endif ()
@@ -176,7 +174,7 @@ macro (EXTERNAL_ZLIB_LIBRARY compress_type)
         GIT_TAG ${ZLIB_BRANCH}
         INSTALL_COMMAND ""
         CMAKE_ARGS
-            -DBUILD_SHARED_LIBS:BOOL=${BUILD_SHARED_LIBS}
+            -DBUILD_SHARED_LIBS:BOOL=OFF
             -DZLIB_PACKAGE_EXT:STRING=${HDF_PACKAGE_EXT}
             -DZLIB_EXTERNALLY_CONFIGURED:BOOL=OFF
             -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
@@ -195,7 +193,7 @@ macro (EXTERNAL_ZLIB_LIBRARY compress_type)
         URL_MD5 ""
         INSTALL_COMMAND ""
         CMAKE_ARGS
-            -DBUILD_SHARED_LIBS:BOOL=${BUILD_SHARED_LIBS}
+            -DBUILD_SHARED_LIBS:BOOL=OFF
             -DZLIB_PACKAGE_EXT:STRING=${HDF_PACKAGE_EXT}
             -DZLIB_EXTERNALLY_CONFIGURED:BOOL=OFF
             -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
@@ -224,14 +222,6 @@ macro (EXTERNAL_ZLIB_LIBRARY compress_type)
   add_dependencies (${HDF_PACKAGE_NAMESPACE}zlib-static ZLIB)
   set (ZLIB_STATIC_LIBRARY "${HDF_PACKAGE_NAMESPACE}zlib-static")
   set (ZLIB_LIBRARIES ${ZLIB_STATIC_LIBRARY})
-  if (BUILD_SHARED_LIBS)
-    # Create imported target zlib-shared
-    add_library(${HDF_PACKAGE_NAMESPACE}zlib-shared SHARED IMPORTED)
-    HDF_IMPORT_SET_LIB_OPTIONS (${HDF_PACKAGE_NAMESPACE}zlib-shared ${ZLIB_LIB_NAME} SHARED "")
-    add_dependencies (${HDF_PACKAGE_NAMESPACE}zlib-shared ZLIB)
-    set (ZLIB_SHARED_LIBRARY "${HDF_PACKAGE_NAMESPACE}zlib-shared")
-    set (ZLIB_LIBRARIES ${ZLIB_LIBRARIES} ${ZLIB_SHARED_LIBRARY})
-  endif ()
 
   set (ZLIB_INCLUDE_DIR_GEN "${BINARY_DIR}")
   set (ZLIB_INCLUDE_DIR "${SOURCE_DIR}")
diff --git a/release_docs/INSTALL_CMake.txt b/release_docs/INSTALL_CMake.txt
index e1a34c5..a0386cd 100644
--- a/release_docs/INSTALL_CMake.txt
+++ b/release_docs/INSTALL_CMake.txt
@@ -61,6 +61,7 @@ CMake build script:
     CTestScript.cmake
 
 External compression szip and zlib libraries:
+    LIBAEC.tar.gz
     SZip.tar.gz
     ZLib.tar.gz
 
@@ -475,6 +476,8 @@ These five steps are described in detail below.
                 set_property (CACHE HDF5_ALLOW_EXTERNAL_SUPPORT PROPERTY STRINGS NO GIT TGZ)
                 set (ZLIB_TGZ_NAME "ZLib.tar.gz" CACHE STRING "Use ZLib from compressed file" FORCE)
                 set (SZIP_TGZ_NAME "SZip.tar.gz" CACHE STRING "Use SZip from compressed file" FORCE)
+                set (SZAEC_TGZ_NAME "LIBAEC.tar.gz" CACHE STRING "Use SZip AEC from compressed file" FORCE)
+                set (USE_LIBAEC ON CACHE BOOL "Use libaec szip replacement" FORCE)
                 set (ZLIB_PACKAGE_NAME "zlib" CACHE STRING "Name of ZLIB package" FORCE)
                 set (SZIP_PACKAGE_NAME "szip" CACHE STRING "Name of SZIP package" FORCE)
 
@@ -550,12 +553,17 @@ These five steps are described in detail below.
            file) are:
                ZLIB_TGZ_NAME:STRING="zlib_src.ext"
                SZIP_TGZ_NAME:STRING="szip_src.ext"
+               LIBAEC_TGZ_NAME:STRING="liaec_src.ext"
                TGZPATH:STRING="some_location"
             where "some_location/xxxx_src.ext" is the URL or full path to
             the compressed file and where ext is the type of the compression
             file such as .bz2, .tar, .tar.gz, .tgz, or .zip. Also define
             CMAKE_BUILD_TYPE to be the configuration type.
 
+           NOTE: the USE_LIBAEC option will use the file named by LIBAEC_TGZ_NAME
+            to build SZIP instead of the file named by SZIP_TGZ_NAME. This option
+            is also used to account for the different headers and library names.
+
    4. Test HDF5
 
       To test the build, navigate to your build directory and execute:
@@ -676,6 +684,7 @@ ZLIB_USE_EXTERNAL           "Use External Library Building for ZLIB"
 SZIP_USE_EXTERNAL           "Use External Library Building for SZIP"              0
 if (HDF5_ENABLE_SZIP_SUPPORT)
     HDF5_ENABLE_SZIP_ENCODING "Use SZip Encoding"                                 OFF
+    USE_LIBAEC                "Use libaec szip replacement"                       OFF
 if (WINDOWS)
     H5_DEFAULT_PLUGINDIR    "%ALLUSERSPROFILE%/hdf5/lib/plugin"
 else ()
diff --git a/release_docs/README_HDF5_CMake b/release_docs/README_HDF5_CMake
index 5737624..f1f2999 100644
--- a/release_docs/README_HDF5_CMake
+++ b/release_docs/README_HDF5_CMake
@@ -7,6 +7,7 @@ This tar file contains
     HDF5config.cmake    CMake scripts for building HDF5
     HDF5options.cmake
     hdf5-1.13.0         HDF5 1.13.0 source
+    LIBAEC.tar.gz       source for building SZIP replacement
     SZip.tar.gz         source for building SZIP
     ZLib.tar.gz         source for building ZLIB
 
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
index 6c43908..102402e 100644
--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -48,6 +48,16 @@ New Features
 
     Configuration:
     -------------
+    - CMake option to use AEC (open source SZip) library instead of SZip
+
+      The open source AEC library is a replacement library for SZip. In
+      order to use it for hdf5 the libaec CMake source was changed to add
+      "-fPIC" and exclude test files. Autotools does not build the
+      compression libraries within hdf5 builds. New option USE_LIBAEC is
+      required to compensate for the different files produced by AEC build.
+
+      (ADB - 2020/04/22, OESS-65)
+
     - CMake ConfigureChecks.cmake file now uses CHECK_STRUCT_HAS_MEMBER
 
       Some handcrafted tests in HDFTests.c has been removed and the CMake