HDFFV-10703 revert pre-3.11 option

1 files changed, 58 insertions, 0 deletions

diff --git a/config/cmake/hdf5-config-version.cmake.in b/config/cmake/hdf5-config-version.cmake.in
new file mode 100644
index 0000000..8e16725
--- /dev/null
+++ b/config/cmake/hdf5-config-version.cmake.in
@@ -0,0 +1,58 @@
+#
+# Copyright by The HDF Group.
+# All rights reserved.
+#
+# This file is part of HDF5.  The full HDF5 copyright notice, including
+# terms governing use, modification, and redistribution, is contained in
+# the COPYING file, which can be found at the root of the source code
+# distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.
+# If you do not have access to either file, you may request a copy from
+# help@hdfgroup.org.
+#
+#-----------------------------------------------------------------------------
+# HDF5 Version file for install directory
+#-----------------------------------------------------------------------------
+#
+# The created file sets PACKAGE_VERSION_EXACT if the current version string and
+# the requested version string are exactly the same and it sets
+# PACKAGE_VERSION_COMPATIBLE if the current version is >= requested version,
+# but only if the requested major.minor version is the same as the current one.
+# The variable HDF5_VERSION_STRING must be set before calling configure_file().
+
+set (PACKAGE_VERSION "@HDF5_VERSION_STRING@")
+
+if("${PACKAGE_VERSION}" VERSION_LESS "${PACKAGE_FIND_VERSION}" )
+  set(PACKAGE_VERSION_COMPATIBLE FALSE)
+else ()
+  if ("${PACKAGE_FIND_VERSION_MAJOR}" STREQUAL "@H5_VERS_MAJOR@")
+
+    # exact match for version @H5_VERS_MAJOR@.@H5_VERS_MINOR@
+    if ("${PACKAGE_FIND_VERSION_MINOR}" STREQUAL "@H5_VERS_MINOR@")
+
+      # compatible with any version @H5_VERS_MAJOR@.@H5_VERS_MINOR@.x
+      set (PACKAGE_VERSION_COMPATIBLE TRUE)
+
+      if ("${PACKAGE_FIND_VERSION_PATCH}" STREQUAL "@H5_VERS_RELEASE@")
+        set (PACKAGE_VERSION_EXACT TRUE)
+
+        if ("${PACKAGE_FIND_VERSION_TWEAK}" STREQUAL "@H5_VERS_SUBRELEASE@")
+          # not using this yet
+        endif ()
+      endif ()
+    else ()
+      set (PACKAGE_VERSION_COMPATIBLE FALSE)
+    endif ()
+  endif ()
+endif ()
+
+# if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it:
+if("${CMAKE_SIZEOF_VOID_P}"  STREQUAL ""  OR "@CMAKE_SIZEOF_VOID_P@" STREQUAL "")
+   return()
+endif ()
+
+# check that the installed version has the same 32/64bit-ness as the one which is currently searching:
+if(NOT "${CMAKE_SIZEOF_VOID_P}" STREQUAL "@CMAKE_SIZEOF_VOID_P@")
+  math(EXPR installedBits "@CMAKE_SIZEOF_VOID_P@ * 8")
+  set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
+  set(PACKAGE_VERSION_UNSUITABLE TRUE)
+endif ()