Rework the compression library search (#5085)

This commit is contained in:
Allen Byrne 2024-12-13 10:28:27 -06:00 committed by GitHub
parent 937e446362
commit 1a9f13a7f1
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GPG Key ID: B5690EEEBB952194
19 changed files with 79 additions and 35 deletions

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@ -70,6 +70,7 @@ jobs:
CC=mpicc cmake -C $GITHUB_WORKSPACE/config/cmake/cacheinit.cmake -G Ninja \
-DCMAKE_BUILD_TYPE=${{ inputs.build_mode }} \
-DHDF5_ENABLE_SZIP_SUPPORT:BOOL=OFF \
-DHDF5_ENABLE_ZLIB_SUPPORT:BOOL=OFF \
-DHDF5_ENABLE_PARALLEL:BOOL=ON \
-DHDF5_ENABLE_SUBFILING_VFD:BOOL=ON \
-DHDF5_BUILD_CPP_LIB:BOOL=OFF \

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@ -38,6 +38,7 @@ jobs:
cmake -C ../config/cmake/cacheinit.cmake -G "Unix Makefiles" \
--log-level=VERBOSE \
-DCMAKE_BUILD_TYPE=${{ inputs.build_mode }} \
-DHDF5_ENABLE_ZLIB_SUPPORT:BOOL=OFF \
-DHDF5_ENABLE_SZIP_SUPPORT:BOOL=OFF \
-DHDF5_BUILD_CPP_LIB:BOOL=OFF \
-DLIBAEC_USE_LOCALCONTENT:BOOL=OFF \

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@ -34,6 +34,7 @@ jobs:
cd "${{ runner.workspace }}/build"
cmake -C $GITHUB_WORKSPACE/config/cmake/cacheinit.cmake -G Ninja \
-DCMAKE_BUILD_TYPE=${{ inputs.build_mode }} \
-DHDF5_ENABLE_ZLIB_SUPPORT:BOOL=OFF \
-DHDF5_ENABLE_SZIP_SUPPORT:BOOL=OFF \
-DHDF5_ENABLE_PARALLEL:BOOL=OFF \
-DHDF5_BUILD_CPP_LIB:BOOL=OFF \

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@ -52,6 +52,7 @@ jobs:
-DHDF5_BUILD_DOC:BOOL=OFF \
-DLIBAEC_USE_LOCALCONTENT:BOOL=OFF \
-DZLIB_USE_LOCALCONTENT:BOOL=OFF \
-DHDF5_ENABLE_ZLIB_SUPPORT:BOOL=ON \
-DH5_NO_DEPRECATED_SYMBOLS:BOOL=OFF \
-DBUILD_TESTING:BOOL=OFF \
-DCMAKE_INSTALL_PREFIX:PATH=/usr/local \

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@ -52,6 +52,7 @@ jobs:
cd "${{ runner.workspace }}/build"
cmake -C $GITHUB_WORKSPACE/config/cmake/cacheinit.cmake -G Ninja \
-DCMAKE_BUILD_TYPE=${{ inputs.build_mode }} \
-DHDF5_ENABLE_ZLIB_SUPPORT:BOOL=OFF \
-DHDF5_ENABLE_SZIP_SUPPORT:BOOL=OFF \
-DHDF5_ENABLE_PARALLEL:BOOL=ON \
-DMPIEXEC_NUMPROC_FLAG:STRING=-np \

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@ -43,6 +43,7 @@ jobs:
-DHDF5_ENABLE_PARALLEL:BOOL=ON \
-DHDF5_ENABLE_THREADSAFE:BOOL=ON \
-DHDF5_ALLOW_UNSUPPORTED:BOOL=ON \
-DHDF5_ENABLE_ZLIB_SUPPORT:BOOL=OFF \
-DHDF5_ENABLE_SZIP_SUPPORT:BOOL=OFF \
${{ github.workspace }}/hdf5
cat src/libhdf5.settings

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@ -55,6 +55,7 @@ jobs:
-DHDF5_ENABLE_PARALLEL:BOOL=ON \
-DHDF5_ENABLE_THREADSAFE:BOOL=ON \
-DHDF5_ALLOW_UNSUPPORTED:BOOL=ON \
-DHDF5_ENABLE_ZLIB_SUPPORT:BOOL=OFF \
-DHDF5_ENABLE_SZIP_SUPPORT:BOOL=OFF \
-DHDF5_VOL_ALLOW_EXTERNAL:STRING="GIT" \
-DHDF5_VOL_URL01:STRING="https://github.com/HDFGroup/vol-async.git" \

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@ -83,6 +83,7 @@ jobs:
-DHDF5_ENABLE_PARALLEL:BOOL=ON \
-DHDF5_ENABLE_THREADSAFE:BOOL=ON \
-DHDF5_ALLOW_UNSUPPORTED:BOOL=ON \
-DHDF5_ENABLE_ZLIB_SUPPORT:BOOL=OFF \
-DHDF5_ENABLE_SZIP_SUPPORT:BOOL=OFF \
-DHDF5_VOL_ALLOW_EXTERNAL:STRING="GIT" \
-DHDF5_VOL_URL01:STRING="https://github.com/HDFGroup/vol-async.git" \

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@ -42,6 +42,7 @@ jobs:
-DBUILD_STATIC_LIBS=OFF \
-DHDF5_TEST_API:BOOL=ON \
-DHDF5_ENABLE_PARALLEL:BOOL=ON \
-DHDF5_ENABLE_ZLIB_SUPPORT:BOOL=OFF \
-DHDF5_ENABLE_SZIP_SUPPORT:BOOL=OFF \
-DHDF5_VOL_ALLOW_EXTERNAL:STRING="GIT" \
-DHDF5_VOL_URL01:STRING="https://github.com/hpc-io/vol-external-passthrough.git" \

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@ -41,6 +41,7 @@ jobs:
-DHDF5_ENABLE_PARALLEL:BOOL=ON \
-DHDF5_ENABLE_THREADSAFE:BOOL=ON \
-DHDF5_ALLOW_UNSUPPORTED:BOOL=ON \
-DHDF5_ENABLE_ZLIB_SUPPORT:BOOL=OFF \
-DHDF5_ENABLE_SZIP_SUPPORT:BOOL=OFF \
${{ github.workspace }}/hdf5
cat src/libhdf5.settings

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@ -57,8 +57,8 @@ jobs:
-DHDF5_BUILD_HL_LIB:BOOL=ON \
-DHDF5_TEST_API:BOOL=ON \
-DHDF5_ALLOW_UNSUPPORTED:BOOL=ON \
-DHDF5_ENABLE_SZIP_SUPPORT:BOOL=OFF \
-DHDF5_ENABLE_ZLIB_SUPPORT:BOOL=OFF \
-DHDF5_ENABLE_SZIP_SUPPORT:BOOL=OFF \
-DHDF5_VOL_ALLOW_EXTERNAL:STRING="GIT" \
-DHDF5_VOL_URL01:STRING="https://github.com/HDFGroup/vol-rest.git" \
-DHDF5_VOL_VOL-REST_BRANCH:STRING="master" \

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@ -14,6 +14,8 @@ option (HDF5_USE_ZLIB_STATIC "Find static zlib library" OFF)
option (HDF5_USE_LIBAEC_STATIC "Find static AEC library" OFF)
option (ZLIB_USE_EXTERNAL "Use External Library Building for ZLIB" OFF)
option (SZIP_USE_EXTERNAL "Use External Library Building for SZIP" OFF)
option (ZLIB_USE_LOCALCONTENT "Use local file for ZLIB FetchContent" OFF)
option (LIBAEC_USE_LOCALCONTENT "Use local file for LIBAEC FetchContent" OFF)
if (NOT ZLIB_USE_LOCALCONTENT)
if (HDF5_USE_ZLIB_NG)
@ -77,7 +79,13 @@ endif ()
# Option for ZLib support
#-----------------------------------------------------------------------------
set(H5_ZLIB_FOUND FALSE)
option (HDF5_ENABLE_ZLIB_SUPPORT "Enable Zlib Filters" ON)
if(NOT DEFINED ZLIB_PACKAGE_NAME)
set(ZLIB_PACKAGE_NAME "zlib")
endif ()
if(NOT DEFINED ZLIBNG_PACKAGE_NAME)
set(ZLIBNG_PACKAGE_NAME "zlib-ng")
endif ()
option (HDF5_ENABLE_ZLIB_SUPPORT "Enable Zlib Filters" OFF)
if (HDF5_ENABLE_ZLIB_SUPPORT)
if (NOT H5_ZLIB_HEADER)
if (NOT ZLIB_USE_EXTERNAL)
@ -88,11 +96,12 @@ if (HDF5_ENABLE_ZLIB_SUPPORT)
endif ()
set(ZLIB_FOUND FALSE)
if (HDF5_USE_ZLIB_STATIC)
set(ZLIB_SEACH_TYPE static)
set(ZLIB_SEARCH_TYPE static)
else ()
set(ZLIB_SEACH_TYPE shared)
set(ZLIB_SEARCH_TYPE shared)
endif ()
find_package (ZLIB NAMES ${PACKAGE_NAME} COMPONENTS ${ZLIB_SEACH_TYPE})
# Search pure Config mode first
find_package (ZLIB NAMES ${PACKAGE_NAME} OPTIONAL_COMPONENTS ${ZLIB_SEARCH_TYPE})
if (NOT ZLIB_FOUND)
if (CMAKE_VERSION VERSION_GREATER_EQUAL "3.24.0")
set(ZLIB_USE_STATIC_LIBS ${HDF5_USE_ZLIB_STATIC})
@ -140,7 +149,7 @@ if (HDF5_ENABLE_ZLIB_SUPPORT)
message (VERBOSE "Filter HDF5_ZLIB is ON")
else ()
set (HDF5_ENABLE_ZLIB_SUPPORT OFF CACHE BOOL "" FORCE)
message (WARNING " ZLib support in HDF5 was enabled but not found")
message (FATAL_ERROR " ZLib support in HDF5 was enabled but not found")
endif ()
message(STATUS "H5_ZLIB_HEADER=${H5_ZLIB_HEADER}")
endif ()
@ -149,7 +158,10 @@ endif ()
# Option for SzLib support
#-----------------------------------------------------------------------------
set(H5_SZIP_FOUND FALSE)
option (HDF5_ENABLE_SZIP_SUPPORT "Use SZip Filter" ON)
if(NOT DEFINED LIBAEC_PACKAGE_NAME)
set(LIBAEC_PACKAGE_NAME "libaec")
endif ()
option (HDF5_ENABLE_SZIP_SUPPORT "Use SZip Filter" OFF)
if (HDF5_ENABLE_SZIP_SUPPORT)
option (HDF5_ENABLE_SZIP_ENCODING "Use SZip Encoding" ON)
if (NOT SZIP_USE_EXTERNAL)
@ -160,10 +172,8 @@ if (HDF5_ENABLE_SZIP_SUPPORT)
endif ()
set(libaec_USE_STATIC_LIBS ${HDF5_USE_LIBAEC_STATIC})
set(SZIP_FOUND FALSE)
find_package (SZIP NAMES ${LIBAEC_PACKAGE_NAME}${HDF_PACKAGE_EXT} COMPONENTS ${LIBAEC_SEARCH_TYPE})
if (NOT SZIP_FOUND)
find_package (SZIP) # Legacy find
endif ()
# Search pure Config mode, there is not a FindSZIP module available
find_package (SZIP NAMES ${LIBAEC_PACKAGE_NAME}${HDF_PACKAGE_EXT} OPTIONAL_COMPONENTS ${LIBAEC_SEARCH_TYPE})
set(H5_SZIP_FOUND ${SZIP_FOUND})
if (H5_SZIP_FOUND)
set (H5_SZIP_INCLUDE_DIR_GEN ${SZIP_INCLUDE_DIR})
@ -173,8 +183,7 @@ if (HDF5_ENABLE_SZIP_SUPPORT)
else ()
if (HDF5_ALLOW_EXTERNAL_SUPPORT MATCHES "GIT" OR HDF5_ALLOW_EXTERNAL_SUPPORT MATCHES "TGZ")
EXTERNAL_SZIP_LIBRARY (${HDF5_ALLOW_EXTERNAL_SUPPORT} ${HDF5_ENABLE_SZIP_ENCODING})
message (VERBOSE "Filter SZIP is built")
message (VERBOSE "... with library AEC")
message (VERBOSE "Filter SZIP is built using library AEC")
set (LINK_COMP_LIBS ${LINK_COMP_LIBS} ${H5_SZIP_STATIC_LIBRARY})
endif ()
endif ()
@ -193,6 +202,6 @@ if (HDF5_ENABLE_SZIP_SUPPORT)
endif ()
else ()
set (HDF5_ENABLE_SZIP_SUPPORT OFF CACHE BOOL "" FORCE)
message (WARNING "SZIP support in HDF5 was enabled but not found")
message (FATAL_ERROR "SZIP support in HDF5 was enabled but not found")
endif ()
endif ()

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@ -10,6 +10,7 @@
# help@hdfgroup.org.
#
option (PLUGIN_USE_EXTERNAL "Use External Library Building for filter PLUGIN else search" OFF)
option (PLUGIN_USE_LOCALCONTENT "Use local file for PLUGIN FetchContent" OFF)
if (NOT PLUGIN_USE_LOCALCONTENT)
set (PLUGIN_URL ${PLUGIN_TGZ_ORIGPATH}/${PLUGIN_TGZ_NAME})

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@ -79,7 +79,7 @@ set (KWSYS_USE_LOCALCONTENT OFF CACHE BOOL "Use local file for KWSYS FetchConten
# filter plugin options
########################
set (PLUGIN_TGZ_ORIGPATH "https://github.com/HDFGroup/hdf5_plugins/releases/download/snapshots" CACHE STRING "Use PLUGINS from original location" FORCE)
set (PLUGIN_TGZ_ORIGPATH "https://github.com/HDFGroup/hdf5_plugins/releases/download/snapshot" CACHE STRING "Use PLUGINS from original location" FORCE)
set (PLUGIN_TGZ_NAME "hdf5_plugins-master.tar.gz" CACHE STRING "Use PLUGINS from compressed file" FORCE)
set (PLUGIN_USE_LOCALCONTENT ON CACHE BOOL "Use local file for PLUGIN FetchContent" FORCE)
set (PLUGIN_PACKAGE_NAME "pl" CACHE STRING "Name of PLUGIN package" FORCE)

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@ -62,15 +62,15 @@ set (ADD_BUILD_OPTIONS "${ADD_BUILD_OPTIONS} -DHDF5_ALLOW_EXTERNAL_SUPPORT:STRIN
### ext libs on system
#set (ADD_BUILD_OPTIONS "${ADD_BUILD_OPTIONS} -DHDF5_ALLOW_EXTERNAL_SUPPORT:STRING=NO")
#set(ENV{ZLIB_ROOT} "some_location")
#set (ADD_BUILD_OPTIONS "${ADD_BUILD_OPTIONS} -DH5_ZLIB_LIBRARY:FILEPATH=some_location/lib/zlib.lib -DH5_ZLIB_INCLUDE_DIR:PATH=some_location/include")
#set (ADD_BUILD_OPTIONS "${ADD_BUILD_OPTIONS} -DZLIB_LIBRARY:FILEPATH=some_location/lib/zlib.lib -DZLIB_INCLUDE_DIR:PATH=some_location/include")
#set(ENV{SZIP_ROOT} "some_location")
#set (ADD_BUILD_OPTIONS "${ADD_BUILD_OPTIONS} -DH5_SZIP_LIBRARY:FILEPATH=some_location/lib/szlib.lib -DH5_SZIP_INCLUDE_DIR:PATH=some_location/include")
#set (ADD_BUILD_OPTIONS "${ADD_BUILD_OPTIONS} -DSZIP_LIBRARY:FILEPATH=some_location/lib/szlib.lib -DSZIP_INCLUDE_DIR:PATH=some_location/include")
### disable using ext zlib
#set (ADD_BUILD_OPTIONS "${ADD_BUILD_OPTIONS} -DHDF5_ENABLE_ZLIB_SUPPORT:BOOL=OFF")
### disable using ext szip
#set (ADD_BUILD_OPTIONS "${ADD_BUILD_OPTIONS} -DHDF5_ENABLE_SZIP_SUPPORT:BOOL=OFF")
#set (ADD_BUILD_OPTIONS "${ADD_BUILD_OPTIONS} -DHDF5_ENABLE_SZIP_ENCODING:BOOL=OFF")
### enable using ext szip
#set (ADD_BUILD_OPTIONS "${ADD_BUILD_OPTIONS} -DHDF5_ENABLE_SZIP_SUPPORT:BOOL=ON")
#set (ADD_BUILD_OPTIONS "${ADD_BUILD_OPTIONS} -DHDF5_ENABLE_SZIP_ENCODING:BOOL=ON")
#### package examples ####
#set (ADD_BUILD_OPTIONS "${ADD_BUILD_OPTIONS} -DHDF5_PACK_EXAMPLES:BOOL=ON -DHDF5_EXAMPLES_COMPRESSED:STRING=HDF5Examples-2.0.3-Source.tar.gz -DHDF5_EXAMPLES_COMPRESSED_DIR:PATH=${CTEST_SCRIPT_DIRECTORY}")

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@ -289,11 +289,11 @@ IV. Further considerations
A. Download the binary packages and install them in a central location.
For example on Windows, create a folder extlibs and install the
packages there. Add the following CMake options:
-DH5_ZLIB_LIBRARY:FILEPATH=some_location/lib/zlib.lib
-DH5_ZLIB_INCLUDE_DIR:PATH=some_location/include
-DZLIB_LIBRARY:FILEPATH=some_location/lib/zlib.lib
-DZLIB_INCLUDE_DIR:PATH=some_location/include
-DZLIB_USE_EXTERNAL:BOOL=OFF
-DH5_SZIP_LIBRARY:FILEPATH=some_location/lib/szlib.lib
-DH5_SZIP_INCLUDE_DIR:PATH=some_location/include
-DSZIP_LIBRARY:FILEPATH=some_location/lib/szlib.lib
-DSZIP_INCLUDE_DIR:PATH=some_location/include
-DSZIP_USE_EXTERNAL:BOOL=OFF
where "some_location" is the full path to the extlibs folder.
Also the appropriate environment variable must be set;
@ -503,10 +503,10 @@ These five steps are described in detail below.
* Visual Studio 17 2022
<options> is:
* H5_SZIP_INCLUDE_DIR:PATH=<path to szip includes directory>
* H5_SZIP_LIBRARY:FILEPATH=<path to szip/library file>
* H5_ZLIB_INCLUDE_DIR:PATH=<path to zlib includes directory>
* H5_ZLIB_LIBRARY:FILEPATH=<path to zlib/library file>
* SZIP_INCLUDE_DIR:PATH=<path to szip includes directory>
* SZIP_LIBRARY:FILEPATH=<path to szip/library file>
* ZLIB_INCLUDE_DIR:PATH=<path to zlib includes directory>
* ZLIB_LIBRARY:FILEPATH=<path to zlib/library file>
* <HDF5OPTION>:BOOL=[ON | OFF]
<cacheinit.cmake> is:
@ -556,7 +556,7 @@ These five steps are described in detail below.
########################
# filter plugin options
########################
set (PLUGIN_TGZ_ORIGPATH "https://github.com/HDFGroup/hdf5_plugins/releases/download/snapshots" CACHE STRING "Use PLUGINS from original location" FORCE)
set (PLUGIN_TGZ_ORIGPATH "https://github.com/HDFGroup/hdf5_plugins/releases/download/snapshot" CACHE STRING "Use PLUGINS from original location" FORCE)
set (PLUGIN_TGZ_NAME "hdf5_plugins-master.tar.gz" CACHE STRING "Use PLUGINS from compressed file" FORCE)
set (PLUGIN_USE_LOCALCONTENT ON CACHE BOOL "Use local file for PLUGIN FetchContent" FORCE)
set (PLUGIN_PACKAGE_NAME "pl" CACHE STRING "Name of PLUGIN package" FORCE)
@ -939,7 +939,7 @@ if (BUILD_TESTING)
HDF5_ALLOW_EXTERNAL_SUPPORT "Allow External Library Building (NO GIT TGZ)" "NO"
HDF5_ENABLE_PLUGIN_SUPPORT "Enable PLUGIN Filters" OFF
HDF5_ENABLE_SZIP_SUPPORT "Use SZip Filter" OFF
HDF5_ENABLE_ZLIB_SUPPORT "Enable Zlib Filters" ON
HDF5_ENABLE_ZLIB_SUPPORT "Enable Zlib Filters" OFF
if (HDF5_USE_ZLIB_NG)
ZLIBNG_USE_EXTERNAL "Use External Library Building for ZLIBNG" OFF
@ -949,7 +949,7 @@ else
ZLIB_USE_EXTERNAL "Use External Library Building for ZLIB" OFF
ZLIB_TGZ_ORIGPATH "Use ZLIB from original location" "https://github.com/madler/zlib/releases/download/v1.3.1"
ZLIB_TGZ_NAME "Use ZLIB from original compressed file" "zlib-1.3.1.tar.gz"
ZLIB_USE_LOCALCONTENT "Use local file for ZLIB FetchContent" ON
ZLIB_USE_LOCALCONTENT "Use local file for ZLIB FetchContent" OFF
HDF5_USE_ZLIB_STATIC "Find static zlib library" OFF
SZIP_USE_EXTERNAL "Use External Library Building for SZIP else search" OFF
@ -957,10 +957,13 @@ if (HDF5_ENABLE_SZIP_SUPPORT)
HDF5_ENABLE_SZIP_ENCODING "Use SZip Encoding" ON
LIBAEC_TGZ_ORIGPATH "Use LIBAEC from original location" "https://github.com/MathisRosenhauer/libaec/releases/download/v1.1.3"
LIBAEC_TGZ_NAME "Use LIBAEC from original compressed file" "libaec-1.1.3.tar.gz"
LIBAEC_USE_LOCALCONTENT "Use local file for LIBAEC FetchContent" ON
LIBAEC_USE_LOCALCONTENT "Use local file for LIBAEC FetchContent" OFF
HDF5_USE_LIBAEC_STATIC "Find static AEC library" OFF
PLUGIN_USE_EXTERNAL "Use External Library Building for PLUGINS else search" OFF
PLUGIN_TGZ_ORIGPATH "Use PLUGIN from original location" "https://github.com/HDFGroup/hdf5_plugins/releases/download/snapshot"
PLUGIN_TGZ_NAME "Use PLUGIN from original compressed file" "hdf5_plugins-master.tar.gz"
PLUGIN_USE_LOCALCONTENT "Use local file for PLUGIN FetchContent" OFF
if (WINDOWS)
H5_DEFAULT_PLUGINDIR "%ALLUSERSPROFILE%/hdf5/lib/plugin"
else ()

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@ -3,7 +3,13 @@ HDF5 version 2.0.0 currently under development
Features included for the next major release:
----------------------------------------------------------------------------
*
************ Renamed the option: HDF5_ENABLE_Z_LIB_SUPPORT ************
The option has been renamed to HDF5_ENABLE_ZLIB_SUPPORT to be consistent
with the naming of other options.
*** Also, the option defaults to OFF. This requires the user to explicitly ***
*** enable zlib support when configuring the library. ***
----------------------------------------------------------------------------
Please see the full release notes for detailed information regarding this release,

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@ -47,10 +47,12 @@ New Features
Configuration:
-------------
- Renamed the option: HDF5_ENABLE_Z_LIB_SUPPORT
- ************ Renamed the option: HDF5_ENABLE_Z_LIB_SUPPORT ************
The option has been renamed to HDF5_ENABLE_ZLIB_SUPPORT to be consistent
with the naming of other options.
*** Also, the option defaults to OFF. This requires the user to explicitly ***
*** enable zlib support when configuring the library. ***
- Added support for MinGW + MSYS2 when building with CMake
@ -528,6 +530,18 @@ Bug Fixes since HDF5-2.0.0 release
Configuration
-------------
- Changed the zlib/szip compression find message to FATAL ERROR
The message was changed to indicate that zlib/szip compression was requested and
that it was not found. If an option is requested, not finding it should always
be an error.
- Removed the module search find_package for szip library
There is not a szip module file to use, so the find_package only uses
find_package in config mode. The choice then is to either build szip, with libaec,
inline or find a system installed szip library, built with CMake.
- Changed name of libhdf5hl_fortran installed by autotools to libhdf5_hl_fortran. The
new name is consistent with the name of the lib when installed by CMake and with the
other hl libs.

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@ -2845,13 +2845,14 @@ test_missing_filter(hid_t file)
size_t i, j; /* Local index variables */
herr_t ret; /* Generic return value */
const char *testfile = H5_get_srcdir_filename(FILE_DEFLATE_NAME); /* Corrected test file name */
H5CX_node_t api_ctx = {{0}, NULL}; /* API context node to push */
bool api_ctx_pushed = false; /* Whether API context pushed */
TESTING("dataset access with missing filter");
/* Unregister the deflate filter */
#ifdef H5_HAVE_FILTER_DEFLATE
H5CX_node_t api_ctx = {{0}, NULL}; /* API context node to push */
/* Verify deflate filter is registered currently */
if (H5Zfilter_avail(H5Z_FILTER_DEFLATE) != true) {
H5_FAILED();