TRILAB-142 Change minimum CMake version to 3.12

11 files changed, 187 insertions, 95 deletions

diff --git a/config/cmake/CTestScript.cmake b/config/cmake/CTestScript.cmake
index e914c4d..5478862 100644
--- a/config/cmake/CTestScript.cmake
+++ b/config/cmake/CTestScript.cmake
@@ -9,7 +9,7 @@
 # If you do not have access to either file, you may request a copy from
 # help@hdfgroup.org.
 #
-cmake_minimum_required (VERSION 3.10)
+cmake_minimum_required (VERSION 3.12)
 ########################################################
 # For any comments please contact cdashhelp@hdfgroup.org
 #
diff --git a/config/cmake/ConfigureChecks.cmake b/config/cmake/ConfigureChecks.cmake
index ab1fa89..11bf39c 100644
--- a/config/cmake/ConfigureChecks.cmake
+++ b/config/cmake/ConfigureChecks.cmake
@@ -160,10 +160,6 @@ endif ()
 #-----------------------------------------------------------------------------
 option (HDF5_ENABLE_ROS3_VFD "Build the ROS3 Virtual File Driver" OFF)
   if (HDF5_ENABLE_ROS3_VFD)
-    # CMake version 3.13 fixed FindCURL module
-    if(CMAKE_VERSION VERSION_LESS "3.13.0" AND WIN32)
-        MESSAGE(FATAL_ERROR "Windows builds for this option requires a minimum of CMake 3.13")
-    endif ()
     find_package(CURL REQUIRED)
     find_package(OpenSSL REQUIRED)
     if (${CURL_FOUND} AND ${OPENSSL_FOUND})
diff --git a/config/cmake/HDF5UseFortran.cmake b/config/cmake/HDF5UseFortran.cmake
index 2d3d371..465afbf 100644
--- a/config/cmake/HDF5UseFortran.cmake
+++ b/config/cmake/HDF5UseFortran.cmake
@@ -19,6 +19,24 @@ enable_language (Fortran)
 set (HDF_PREFIX "H5")
 include (CheckFortranFunctionExists)
 
+if (NOT CMAKE_VERSION VERSION_LESS "3.14.0")
+  include (CheckFortranSourceRuns)
+  include (CheckFortranSourceCompiles)
+endif ()
+
+# Read source line beginning at the line matching Input:"START" and ending at the line matching Input:"END"
+macro (READ_SOURCE SOURCE_START SOURCE_END RETURN_VAR)
+  file (READ "${HDF5_SOURCE_DIR}/m4/aclocal_fc.f90" SOURCE_MASTER)
+  string (REGEX MATCH "${SOURCE_START}[\\\t\\\n\\\r[].+]*${SOURCE_END}" SOURCE_CODE ${SOURCE_MASTER})
+  set (RETURN_VAR "${SOURCE_CODE}")
+endmacro ()
+
+set (RUN_OUTPUT_PATH_DEFAULT ${CMAKE_BINARY_DIR})
+if (NOT CMAKE_VERSION VERSION_LESS "3.14.0")
+  if (HDF5_REQUIRED_LIBRARIES)
+    set (CMAKE_REQUIRED_LIBRARIES "${HDF5_REQUIRED_LIBRARIES}")
+  endif ()
+else ()
 # The provided CMake Fortran macros don't provide a general compile/run function
 # so this one is used.
 #-----------------------------------------------------------------------------
@@ -55,22 +73,19 @@ macro (FORTRAN_RUN FUNCTION_NAME SOURCE_CODE RUN_RESULT_VAR1 COMPILE_RESULT_VAR1
         set(${RETURN_VAR} ${COMPILE_RESULT_VAR})
     endif ()
 endmacro ()
-
-# Read source line beginning at the line matching Input:"START" and ending at the line matching Input:"END"
-macro (READ_SOURCE SOURCE_START SOURCE_END RETURN_VAR)
-  file (READ "${HDF5_SOURCE_DIR}/m4/aclocal_fc.f90" SOURCE_MASTER)
-  string (REGEX MATCH "${SOURCE_START}[\\\t\\\n\\\r[].+]*${SOURCE_END}" SOURCE_CODE ${SOURCE_MASTER})
-  set (RETURN_VAR "${SOURCE_CODE}")
-endmacro ()
-
+endif ()
 #-----------------------------------------------------------------------------
 #  Check to see C_LONG_DOUBLE is available
 
 READ_SOURCE("PROGRAM PROG_FC_HAVE_C_LONG_DOUBLE" "END PROGRAM PROG_FC_HAVE_C_LONG_DOUBLE" SOURCE_CODE)
-CHECK_FORTRAN_FEATURE(c_long_double
-  "${SOURCE_CODE}"
-  FORTRAN_HAVE_C_LONG_DOUBLE
-)
+if (NOT CMAKE_VERSION VERSION_LESS "3.14.0")
+  check_fortran_source_compiles (${SOURCE_CODE} FORTRAN_HAVE_C_LONG_DOUBLE SRC_EXT f90)
+else ()
+  CHECK_FORTRAN_FEATURE(c_long_double
+    "${SOURCE_CODE}"
+    FORTRAN_HAVE_C_LONG_DOUBLE
+  )
+endif ()
 
 if (${FORTRAN_HAVE_C_LONG_DOUBLE})
   set (${HDF_PREFIX}_FORTRAN_HAVE_C_LONG_DOUBLE 1)
@@ -81,10 +96,14 @@ endif ()
 # Check to see C_LONG_DOUBLE is different from C_DOUBLE
 
 READ_SOURCE("MODULE type_mod" "END PROGRAM PROG_FC_C_LONG_DOUBLE_EQ_C_DOUBLE" SOURCE_CODE)
-CHECK_FORTRAN_FEATURE(c_long_double
-  "${SOURCE_CODE}"
-  FORTRAN_C_LONG_DOUBLE_IS_UNIQUE
-)
+if (NOT CMAKE_VERSION VERSION_LESS "3.14.0")
+  check_fortran_source_compiles (${SOURCE_CODE} FORTRAN_C_LONG_DOUBLE_IS_UNIQUE SRC_EXT f90)
+else ()
+  CHECK_FORTRAN_FEATURE(c_long_double
+    "${SOURCE_CODE}"
+    FORTRAN_C_LONG_DOUBLE_IS_UNIQUE
+  )
+endif ()
 if (${FORTRAN_C_LONG_DOUBLE_IS_UNIQUE})
   set (${HDF_PREFIX}_FORTRAN_C_LONG_DOUBLE_IS_UNIQUE 1)
 else ()
@@ -108,13 +127,80 @@ endif ()
 # Determine the available KINDs for REALs and INTEGERs
 #-----------------------------------------------------------------------------
 
-READ_SOURCE ("PROGRAM FC_AVAIL_KINDS" "END PROGRAM FC_AVAIL_KINDS" SOURCE_CODE)
+#READ_SOURCE ("PROGRAM FC_AVAIL_KINDS" "END PROGRAM FC_AVAIL_KINDS" SOURCE_CODE)
+set (PROG_SRC_CODE
+  "
+       PROGRAM FC_AVAIL_KINDS
+          IMPLICIT NONE
+          INTEGER :: ik, jk, k, max_decimal_prec
+          INTEGER :: num_rkinds = 1, num_ikinds = 1
+          INTEGER, DIMENSION(1:10) :: list_ikinds = -1
+          INTEGER, DIMENSION(1:10) :: list_rkinds = -1
+
+          OPEN(8, FILE='pac_fconftest.out', FORM='formatted')
+
+          ! Find integer KINDs
+          list_ikinds(num_ikinds)=SELECTED_INT_KIND(1)
+          DO ik = 2, 36
+            k = SELECTED_INT_KIND(ik)
+            IF(k.LT.0) EXIT
+            IF(k.GT.list_ikinds(num_ikinds))THEN
+               num_ikinds = num_ikinds + 1
+               list_ikinds(num_ikinds) = k
+            ENDIF
+          ENDDO
+
+          DO k = 1, num_ikinds
+             WRITE(8,'(I0)', ADVANCE='NO') list_ikinds(k)
+             IF(k.NE.num_ikinds)THEN
+                WRITE(8,'(A)',ADVANCE='NO') ','
+             ELSE
+                WRITE(8,'()')
+             ENDIF
+          ENDDO
+
+          ! Find real KINDs
+          list_rkinds(num_rkinds)=SELECTED_REAL_KIND(1)
+          max_decimal_prec = 1
+
+          prec: DO ik = 2, 36
+             exp: DO jk = 1, 17000
+                k = SELECTED_REAL_KIND(ik,jk)
+                IF(k.LT.0) EXIT exp
+                IF(k.GT.list_rkinds(num_rkinds))THEN
+                   num_rkinds = num_rkinds + 1
+                   list_rkinds(num_rkinds) = k
+                ENDIF
+                max_decimal_prec = ik
+             ENDDO exp
+          ENDDO prec
+
+          DO k = 1, num_rkinds
+             WRITE(8,'(I0)', ADVANCE='NO') list_rkinds(k)
+             IF(k.NE.num_rkinds)THEN
+                WRITE(8,'(A)',ADVANCE='NO') ','
+             ELSE
+                WRITE(8,'()')
+             ENDIF
+          ENDDO
+
+         WRITE(8,'(I0)') max_decimal_prec
+         WRITE(8,'(I0)') num_ikinds
+         WRITE(8,'(I0)') num_rkinds
+      END PROGRAM FC_AVAIL_KINDS
+  "
+)
+if (NOT CMAKE_VERSION VERSION_LESS "3.14.0")
+  check_fortran_source_runs (${PROG_SRC_CODE} FC_AVAIL_KINDS_RESULT SRC_EXT f90)
+else ()
 FORTRAN_RUN ("REAL and INTEGER KINDs"
-    "${SOURCE_CODE}"
+    "${PROG_SRC_CODE}"
     XX
     YY
-    PROG_RESULT
+    FC_AVAIL_KINDS_RESULT
 )
+endif ()
+
 # dnl The output from the above program will be:
 # dnl    -- LINE 1 --  valid integer kinds (comma seperated list)
 # dnl    -- LINE 2 --  valid real kinds (comma seperated list)
@@ -122,7 +208,7 @@ FORTRAN_RUN ("REAL and INTEGER KINDs"
 # dnl    -- LINE 4 --  number of valid integer kinds
 # dnl    -- LINE 5 --  number of valid real kinds
 
-file (READ "${CMAKE_BINARY_DIR}/pac_fconftest.out" PROG_OUTPUT)
+file (READ "${RUN_OUTPUT_PATH_DEFAULT}/pac_fconftest.out" PROG_OUTPUT)
 # Convert the string to a list of strings by replacing the carriage return with a semicolon
 string (REGEX REPLACE "\n" ";" PROG_OUTPUT "${PROG_OUTPUT}")
 
@@ -165,25 +251,25 @@ message (STATUS "....MAX DECIMAL PRECISION ${${HDF_PREFIX}_PAC_FC_MAX_REAL_PRECI
 # **********
 string (REGEX REPLACE "," ";" VAR "${pac_validIntKinds}")
 
-foreach (KIND ${VAR} )
-  set (PROG_SRC
-    "
-        PROGRAM main
-        USE ISO_C_BINDING
-        IMPLICIT NONE
-        INTEGER (KIND=${KIND}) a
-        OPEN(8,FILE='pac_validIntKinds.out',FORM='formatted')
-        WRITE(8,'(I0)') ${FC_SIZEOF_A}
-        CLOSE(8)
-        END
-     "
-  )
-  FORTRAN_RUN("INTEGER KIND SIZEOF" ${PROG_SRC}
-      XX
-      YY
-      PROG_RESULT1
+foreach (KIND ${VAR})
+  set (PROG_SRC_${KIND}
+  "
+       PROGRAM main
+          USE ISO_C_BINDING
+          IMPLICIT NONE
+          INTEGER (KIND=${KIND}) a
+          OPEN(8,FILE='pac_validIntKinds.out',FORM='formatted')
+          WRITE(8,'(I0)') ${FC_SIZEOF_A}
+          CLOSE(8)
+       END
+   "
   )
-  file (READ "${CMAKE_BINARY_DIR}/pac_validIntKinds.out" PROG_OUTPUT1)
+  if (NOT CMAKE_VERSION VERSION_LESS "3.14.0")
+    check_fortran_source_runs (${PROG_SRC_${KIND}} VALIDINTKINDS_RESULT_${KIND} SRC_EXT f90)
+  else ()
+    FORTRAN_RUN("INTEGER KIND SIZEOF" ${PROG_SRC_${KIND}} XX YY VALIDINTKINDS_RESULT_${KIND})
+  endif ()
+  file (READ "${RUN_OUTPUT_PATH_DEFAULT}/pac_validIntKinds.out" PROG_OUTPUT1)
   string (REGEX REPLACE "\n" "" PROG_OUTPUT1 "${PROG_OUTPUT1}")
   set (pack_int_sizeof "${pack_int_sizeof} ${PROG_OUTPUT1},")
 endforeach ()
@@ -213,24 +299,24 @@ math (EXPR _LEN "${LEN_VAR}-1")
 list (GET VAR ${_LEN} max_real_fortran_kind)
 
 foreach (KIND ${VAR} )
-  set (PROG_SRC
-    "
-        PROGRAM main
-        USE ISO_C_BINDING
-        IMPLICIT NONE
-        REAL (KIND=${KIND}) a
-        OPEN(8,FILE='pac_validRealKinds.out',FORM='formatted')
-        WRITE(8,'(I0)') ${FC_SIZEOF_A}
-        CLOSE(8)
-        END
-     "
-  )
-  FORTRAN_RUN ("REAL KIND SIZEOF" ${PROG_SRC}
-      XX
-      YY
-      PROG_RESULT1
+  set (PROG_SRC2_${KIND}
+  "
+       PROGRAM main
+          USE ISO_C_BINDING
+          IMPLICIT NONE
+          REAL (KIND=${KIND}) a
+          OPEN(8,FILE='pac_validRealKinds.out',FORM='formatted')
+          WRITE(8,'(I0)') ${FC_SIZEOF_A}
+          CLOSE(8)
+       END
+  "
   )
-  file (READ "${CMAKE_BINARY_DIR}/pac_validRealKinds.out" PROG_OUTPUT1)
+  if (NOT CMAKE_VERSION VERSION_LESS "3.14.0")
+    check_fortran_source_runs (${PROG_SRC2_${KIND}} VALIDREALKINDS_RESULT_${KIND} SRC_EXT f90)
+  else ()
+    FORTRAN_RUN ("REAL KIND SIZEOF" ${PROG_SRC2_${KIND}} XX YY VALIDREALKINDS_RESULT_${KIND})
+  endif ()
+  file (READ "${RUN_OUTPUT_PATH_DEFAULT}/pac_validRealKinds.out" PROG_OUTPUT1)
   string (REGEX REPLACE "\n" "" PROG_OUTPUT1 "${PROG_OUTPUT1}")
   set (pack_real_sizeof "${pack_real_sizeof} ${PROG_OUTPUT1},")
 endforeach ()
@@ -261,7 +347,7 @@ list (GET VAR ${_LEN} max_real_fortran_sizeof)
 #-----------------------------------------------------------------------------
 # Find sizeof of native kinds
 #-----------------------------------------------------------------------------
-FORTRAN_RUN ("SIZEOF NATIVE KINDs"
+set (PROG_SRC3
   "
        PROGRAM main
           USE ISO_C_BINDING
@@ -279,11 +365,13 @@ FORTRAN_RUN ("SIZEOF NATIVE KINDs"
           CLOSE(8)
        END
   "
-      XX
-      YY
-      PROG_RESULT
-  )
-  file (READ "${CMAKE_BINARY_DIR}/pac_sizeof_native_kinds.out" PROG_OUTPUT)
+)
+if (NOT CMAKE_VERSION VERSION_LESS "3.14.0")
+  check_fortran_source_runs (${PROG_SRC3} PAC_SIZEOF_NATIVE_KINDS_RESULT SRC_EXT f90)
+else ()
+  FORTRAN_RUN ("SIZEOF NATIVE KINDs" ${PROG_SRC3} XX YY PAC_SIZEOF_NATIVE_KINDS_RESULT)
+endif ()
+file (READ "${RUN_OUTPUT_PATH_DEFAULT}/pac_sizeof_native_kinds.out" PROG_OUTPUT)
 # dnl The output from the above program will be:
 # dnl    -- LINE 1 --  sizeof INTEGER
 # dnl    -- LINE 2 --  kind of INTEGER
@@ -352,6 +440,9 @@ set (${HDF_PREFIX}_H5CONFIG_F_RKIND_SIZEOF "INTEGER, DIMENSION(1:num_rkinds) ::
 
 ENABLE_LANGUAGE (C)
 
+if (NOT CMAKE_VERSION VERSION_LESS "3.14.0")
+include (CheckCSourceRuns)
+else ()
 #-----------------------------------------------------------------------------
 # The provided CMake C macros don't provide a general compile/run function
 # so this one is used.
@@ -402,6 +493,7 @@ macro (C_RUN FUNCTION_NAME SOURCE_CODE RETURN_VAR)
         message (FATAL_ERROR "Compilation of C ${FUNCTION_NAME} - Failed")
     endif ()
 endmacro ()
+endif ()
 
 set (PROG_SRC
     "
@@ -432,7 +524,11 @@ set (PROG_SRC
      "
 )
 
-C_RUN ("maximum decimal precision for C" ${PROG_SRC} PROG_OUTPUT)
+if (NOT CMAKE_VERSION VERSION_LESS "3.14.0")
+  check_c_source_runs (${PROG_SRC} PROG_OUTPUT)
+else ()
+  C_RUN ("maximum decimal precision for C" ${PROG_SRC} PROG_OUTPUT)
+endif ()
 
 # dnl The output from the above program will be:
 # dnl    -- LINE 1 --  long double decimal precision
diff --git a/config/cmake/HDF5_Examples.cmake.in b/config/cmake/HDF5_Examples.cmake.in
index 4755ec8..dd064d3 100644
--- a/config/cmake/HDF5_Examples.cmake.in
+++ b/config/cmake/HDF5_Examples.cmake.in
@@ -9,7 +9,7 @@
 # If you do not have access to either file, you may request a copy from
 # help@hdfgroup.org.
 #
-cmake_minimum_required (VERSION 3.10)
+cmake_minimum_required (VERSION 3.12)
 ###############################################################################################################
 # This script will build and run the examples from a folder
 # Execute from a command line:
diff --git a/config/cmake/UseJava.cmake b/config/cmake/UseJava.cmake
index 8efee11..375004e 100644
--- a/config/cmake/UseJava.cmake
+++ b/config/cmake/UseJava.cmake
@@ -536,7 +536,7 @@ function(add_jar _TARGET_NAME)
 
         if (_JAVA_SOURCE_FILE MATCHES "^@(.+)$")
             get_filename_component(_JAVA_FULL ${CMAKE_MATCH_1} ABSOLUTE)
-            list(APPEND _JAVA_COMPILE_FILELISTS ${_JAVA_FULL})
+            list (APPEND _JAVA_COMPILE_FILELISTS ${_JAVA_FULL})
 
         elseif (_JAVA_EXT MATCHES ".java")
             file(RELATIVE_PATH _JAVA_REL_BINARY_PATH ${CMAKE_CURRENT_BINARY_DIR} ${_JAVA_FULL})
@@ -550,7 +550,7 @@ function(add_jar _TARGET_NAME)
             endif ()
             get_filename_component(_JAVA_REL_PATH ${_JAVA_REL_PATH} PATH)
 
-            list(APPEND _JAVA_COMPILE_FILES ${_JAVA_SOURCE_FILE})
+            list (APPEND _JAVA_COMPILE_FILES ${_JAVA_SOURCE_FILE})
             set(_JAVA_CLASS_FILE "${CMAKE_JAVA_CLASS_OUTPUT_PATH}/${_JAVA_REL_PATH}/${_JAVA_FILE}.class")
             set(_JAVA_CLASS_FILES ${_JAVA_CLASS_FILES} ${_JAVA_CLASS_FILE})
 
@@ -561,15 +561,15 @@ function(add_jar _TARGET_NAME)
             # Ignored for backward compatibility
 
         elseif (_JAVA_EXT STREQUAL "")
-            list(APPEND CMAKE_JAVA_INCLUDE_PATH ${JAVA_JAR_TARGET_${_JAVA_SOURCE_FILE}} ${JAVA_JAR_TARGET_${_JAVA_SOURCE_FILE}_CLASSPATH})
-            list(APPEND _JAVA_DEPENDS ${JAVA_JAR_TARGET_${_JAVA_SOURCE_FILE}})
+            list (APPEND CMAKE_JAVA_INCLUDE_PATH ${JAVA_JAR_TARGET_${_JAVA_SOURCE_FILE}} ${JAVA_JAR_TARGET_${_JAVA_SOURCE_FILE}_CLASSPATH})
+            list (APPEND _JAVA_DEPENDS ${JAVA_JAR_TARGET_${_JAVA_SOURCE_FILE}})
 
         else ()
             __java_copy_file(${CMAKE_CURRENT_SOURCE_DIR}/${_JAVA_SOURCE_FILE}
                              ${CMAKE_JAVA_CLASS_OUTPUT_PATH}/${_JAVA_SOURCE_FILE}
                              "Copying ${_JAVA_SOURCE_FILE} to the build directory")
-            list(APPEND _JAVA_RESOURCE_FILES ${CMAKE_JAVA_CLASS_OUTPUT_PATH}/${_JAVA_SOURCE_FILE})
-            list(APPEND _JAVA_RESOURCE_FILES_RELATIVE ${_JAVA_SOURCE_FILE})
+            list (APPEND _JAVA_RESOURCE_FILES ${CMAKE_JAVA_CLASS_OUTPUT_PATH}/${_JAVA_SOURCE_FILE})
+            list (APPEND _JAVA_RESOURCE_FILES_RELATIVE ${_JAVA_SOURCE_FILE})
         endif ()
     endforeach()
 
@@ -578,17 +578,17 @@ function(add_jar _TARGET_NAME)
             get_target_property(_JAVA_JAR_PATH ${_JAVA_INCLUDE_JAR} JAR_FILE)
             if (_JAVA_JAR_PATH)
                 string(APPEND CMAKE_JAVA_INCLUDE_PATH_FINAL "${CMAKE_JAVA_INCLUDE_FLAG_SEP}${_JAVA_JAR_PATH}")
-                list(APPEND CMAKE_JAVA_INCLUDE_PATH ${_JAVA_JAR_PATH})
-                list(APPEND _JAVA_DEPENDS ${_JAVA_INCLUDE_JAR})
-                list(APPEND _JAVA_COMPILE_DEPENDS ${_JAVA_JAR_PATH})
+                list (APPEND CMAKE_JAVA_INCLUDE_PATH ${_JAVA_JAR_PATH})
+                list (APPEND _JAVA_DEPENDS ${_JAVA_INCLUDE_JAR})
+                list (APPEND _JAVA_COMPILE_DEPENDS ${_JAVA_JAR_PATH})
             else ()
                 message(SEND_ERROR "add_jar: INCLUDE_JARS target ${_JAVA_INCLUDE_JAR} is not a jar")
             endif ()
         else ()
             string(APPEND CMAKE_JAVA_INCLUDE_PATH_FINAL "${CMAKE_JAVA_INCLUDE_FLAG_SEP}${_JAVA_INCLUDE_JAR}")
-            list(APPEND CMAKE_JAVA_INCLUDE_PATH "${_JAVA_INCLUDE_JAR}")
-            list(APPEND _JAVA_DEPENDS "${_JAVA_INCLUDE_JAR}")
-            list(APPEND _JAVA_COMPILE_DEPENDS "${_JAVA_INCLUDE_JAR}")
+            list (APPEND CMAKE_JAVA_INCLUDE_PATH "${_JAVA_INCLUDE_JAR}")
+            list (APPEND _JAVA_DEPENDS "${_JAVA_INCLUDE_JAR}")
+            list (APPEND _JAVA_COMPILE_DEPENDS "${_JAVA_INCLUDE_JAR}")
         endif ()
     endforeach()
 
@@ -985,7 +985,7 @@ function(create_javadoc _target)
             elseif (arg STREQUAL "VERSION")
                 set(_state "version")
             else ()
-                list(APPEND _javadoc_packages ${arg})
+                list (APPEND _javadoc_packages ${arg})
             endif ()
         elseif (_state STREQUAL "files")
             if (arg STREQUAL "PACKAGES")
@@ -1009,7 +1009,7 @@ function(create_javadoc _target)
             elseif (arg STREQUAL "VERSION")
                 set(_state "version")
             else ()
-                list(APPEND _javadoc_files ${arg})
+                list (APPEND _javadoc_files ${arg})
             endif ()
         elseif (_state STREQUAL "sourcepath")
             if (arg STREQUAL "PACKAGES")
@@ -1033,7 +1033,7 @@ function(create_javadoc _target)
             elseif (arg STREQUAL "VERSION")
                 set(_state "version")
             else ()
-                list(APPEND _javadoc_sourcepath ${arg})
+                list (APPEND _javadoc_sourcepath ${arg})
             endif ()
         elseif (_state STREQUAL "classpath")
             if (arg STREQUAL "PACKAGES")
@@ -1057,7 +1057,7 @@ function(create_javadoc _target)
             elseif (arg STREQUAL "VERSION")
                 set(_state "version")
             else ()
-                list(APPEND _javadoc_classpath ${arg})
+                list (APPEND _javadoc_classpath ${arg})
             endif ()
         elseif (_state STREQUAL "installpath")
             if (arg STREQUAL "PACKAGES")
diff --git a/config/cmake/UseJavaClassFilelist.cmake b/config/cmake/UseJavaClassFilelist.cmake
index b98276f..8348e4c 100644
--- a/config/cmake/UseJavaClassFilelist.cmake
+++ b/config/cmake/UseJavaClassFilelist.cmake
@@ -23,7 +23,7 @@ if (CMAKE_JAVA_CLASS_OUTPUT_PATH)
 
                 file(GLOB_RECURSE _JAVA_GLOBBED_TMP_FILES "${CMAKE_JAVA_CLASS_OUTPUT_PATH}/${JAR_CLASS_PREFIX}/*.class")
                 if (_JAVA_GLOBBED_TMP_FILES)
-                    list(APPEND _JAVA_GLOBBED_FILES ${_JAVA_GLOBBED_TMP_FILES})
+                    list (APPEND _JAVA_GLOBBED_FILES ${_JAVA_GLOBBED_TMP_FILES})
                 endif ()
             endforeach()
         else()
diff --git a/config/cmake/jrunTest.cmake b/config/cmake/jrunTest.cmake
index 0315536..583613e 100644
--- a/config/cmake/jrunTest.cmake
+++ b/config/cmake/jrunTest.cmake
@@ -75,7 +75,7 @@ message (STATUS "COMMAND Result: ${TEST_RESULT}")
 # if the .err file exists and ERRROR_APPEND is enabled
 if (EXISTS "${TEST_FOLDER}/${TEST_OUTPUT}.err")
   file (READ ${TEST_FOLDER}/${TEST_OUTPUT}.err TEST_STREAM)
-  list(LENGTH TEST_STREAM test_len)
+  list (LENGTH TEST_STREAM test_len)
   if (test_len GREATER 0)
     if (TEST_MASK_FILE)
       STRING(REGEX REPLACE "CurrentDir is [^\n]+\n" "CurrentDir is (dir name)\n" TEST_STREAM "${TEST_STREAM}")
@@ -129,7 +129,7 @@ set (TEST_COMPARE_RESULT 0)
 if (NOT TEST_SKIP_COMPARE)
   if (EXISTS "${TEST_FOLDER}/${TEST_REFERENCE}")
     file (READ ${TEST_FOLDER}/${TEST_REFERENCE} TEST_STREAM)
-    list(LENGTH TEST_STREAM test_len)
+    list (LENGTH TEST_STREAM test_len)
     if (test_len GREATER 0)
       if (WIN32 OR MINGW)
         configure_file(${TEST_FOLDER}/${TEST_REFERENCE} ${TEST_FOLDER}/${TEST_REFERENCE}.tmp NEWLINE_STYLE CRLF)
@@ -143,7 +143,7 @@ if (NOT TEST_SKIP_COMPARE)
       if (NOT TEST_SORT_COMPARE)
         # now compare the output with the reference
         execute_process (
-            COMMAND ${CMAKE_COMMAND} -E compare_files ${TEST_FOLDER}/${TEST_OUTPUT} ${TEST_FOLDER}/${TEST_REFERENCE}
+            COMMAND ${CMAKE_COMMAND} -E compare_files ${CMAKE_IGNORE_EOL} ${TEST_FOLDER}/${TEST_OUTPUT} ${TEST_FOLDER}/${TEST_REFERENCE}
             RESULT_VARIABLE TEST_COMPARE_RESULT
         )
       else ()
@@ -200,7 +200,7 @@ if (NOT TEST_SKIP_COMPARE)
   set (TEST_ERRREF_RESULT 0)
   if (TEST_ERRREF)
     file (READ ${TEST_FOLDER}/${TEST_ERRREF} TEST_STREAM)
-    list(LENGTH TEST_STREAM test_len)
+    list (LENGTH TEST_STREAM test_len)
     if (test_len GREATER 0)
       if (WIN32 OR MINGW)
         configure_file(${TEST_FOLDER}/${TEST_ERRREF} ${TEST_FOLDER}/${TEST_ERRREF}.tmp NEWLINE_STYLE CRLF)
@@ -213,7 +213,7 @@ if (NOT TEST_SKIP_COMPARE)
 
       # now compare the error output with the error reference
       execute_process (
-          COMMAND ${CMAKE_COMMAND} -E compare_files ${TEST_FOLDER}/${TEST_OUTPUT}.err ${TEST_FOLDER}/${TEST_ERRREF}
+          COMMAND ${CMAKE_COMMAND} -E compare_files ${CMAKE_IGNORE_EOL} ${TEST_FOLDER}/${TEST_OUTPUT}.err ${TEST_FOLDER}/${TEST_ERRREF}
           RESULT_VARIABLE TEST_ERRREF_RESULT
       )
       if (TEST_ERRREF_RESULT)
@@ -262,7 +262,7 @@ set (TEST_GREP_RESULT 0)
 if (TEST_GREP_COMPARE)
   # now grep the output with the reference
   file (READ ${TEST_FOLDER}/${TEST_OUTPUT} TEST_STREAM)
-  list(LENGTH TEST_STREAM test_len)
+  list (LENGTH TEST_STREAM test_len)
   if (test_len GREATER 0)
     # TEST_REFERENCE should always be matched
     string (REGEX MATCH "${TEST_REFERENCE}" TEST_MATCH ${TEST_STREAM})
diff --git a/config/cmake/scripts/CTestScript.cmake b/config/cmake/scripts/CTestScript.cmake
index 3c85d48..01335b8 100644
--- a/config/cmake/scripts/CTestScript.cmake
+++ b/config/cmake/scripts/CTestScript.cmake
@@ -9,7 +9,7 @@
 # If you do not have access to either file, you may request a copy from
 # help@hdfgroup.org.
 #
-cmake_minimum_required (VERSION 3.10)
+cmake_minimum_required (VERSION 3.12)
 ########################################################
 # This dashboard is maintained by The HDF Group
 # For any comments please contact cdashhelp@hdfgroup.org
diff --git a/config/cmake/scripts/HDF5config.cmake b/config/cmake/scripts/HDF5config.cmake
index 6096860..10ab5f2 100644
--- a/config/cmake/scripts/HDF5config.cmake
+++ b/config/cmake/scripts/HDF5config.cmake
@@ -15,7 +15,7 @@
 ### ctest -S HDF5config.cmake,BUILD_GENERATOR=VS201764 -C Release -VV -O hdf5.log         ###
 #############################################################################################
 
-cmake_minimum_required (VERSION 3.10)
+cmake_minimum_required (VERSION 3.12)
 ############################################################################
 # Usage:
 #     ctest -S HDF5config.cmake,OPTION=VALUE -C Release -VV -O test.log
diff --git a/config/cmake/userblockTest.cmake b/config/cmake/userblockTest.cmake
index c9fc36f..d3806f1 100644
--- a/config/cmake/userblockTest.cmake
+++ b/config/cmake/userblockTest.cmake
@@ -102,7 +102,7 @@ if (TEST_CHECKUB STREQUAL "YES")
 
   # now compare the outputs
   EXECUTE_PROCESS (
-      COMMAND ${CMAKE_COMMAND} -E compare_files ${TEST_HFILE}-ub.cmp ${TEST_HFILE}.cmp
+      COMMAND ${CMAKE_COMMAND} -E compare_files ${CMAKE_IGNORE_EOL} ${TEST_HFILE}-ub.cmp ${TEST_HFILE}.cmp
       RESULT_VARIABLE TEST_RESULT
   )
 
diff --git a/config/cmake/wait_H5Tinit.cmake b/config/cmake/wait_H5Tinit.cmake
index c0b4d06..b778765 100644
--- a/config/cmake/wait_H5Tinit.cmake
+++ b/config/cmake/wait_H5Tinit.cmake
@@ -1,4 +1,4 @@
-cmake_minimum_required (VERSION 3.10)
+cmake_minimum_required (VERSION 3.12)
 
 message(STATUS "Check for existence of ${HDF5_GENERATED_SOURCE_DIR}/H5Tinit.c")
 execute_process(COMMAND ls ${HDF5_GENERATED_SOURCE_DIR}/H5Tinit.c RESULT_VARIABLE H5TI_result OUTPUT_QUIET ERROR_QUIET)