1 10 merge recent changes from develop (#345)

* HDFFV-10865 - merge from dev, HDFArray perf fix.

* Remove duplicate setting

* Whitespace changes after clang format

* Undo version 11 clang format changes

* Merge CMake changes from develop

* test testing script merge from develop

* Update supported platforms

* PR#3 merge from develop

* Merge gcc 10 diagnostics option from develop

* Merge #318 OSX changes from develop

* Merge small changes from develop

8 files changed, 38 insertions, 11 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5665f98..0cd8c6e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -237,7 +237,7 @@ string (REGEX REPLACE ".*#define[ \t]+H5_VERS_MINOR[ \t]+([0-9]*).*$"
     "\\1" H5_VERS_MINOR ${_h5public_h_contents})
 string (REGEX REPLACE ".*#define[ \t]+H5_VERS_RELEASE[ \t]+([0-9]*).*$"
     "\\1" H5_VERS_RELEASE ${_h5public_h_contents})
-string (REGEX REPLACE ".*#define[ \t]+H5_VERS_SUBRELEASE[ \t]+\"([0-9A-Za-z._\-]*)\".*$"
+string (REGEX REPLACE ".*#define[ \t]+H5_VERS_SUBRELEASE[ \t]+\"([0-9A-Za-z._-]*)\".*$"
     "\\1" H5_VERS_SUBRELEASE ${_h5public_h_contents})
 if (CMAKE_VERSION VERSION_GREATER_EQUAL "3.15.0")
   message (TRACE "VERSION: ${H5_VERS_MAJOR}.${H5_VERS_MINOR}.${H5_VERS_RELEASE}-${H5_VERS_SUBRELEASE}")
diff --git a/bin/genparser b/bin/genparser
index ab40775..183b3c9 100755
--- a/bin/genparser
+++ b/bin/genparser
@@ -219,13 +219,15 @@ perl -0777 -pi -e 's/int H5LTyyparse/hid_t H5LTyyparse/igs' ${path_to_hl_src}/H5
 #
 # Note that the GCC pragmas did not exist until gcc 4.2. Earlier versions
 # will simply ignore them, but we want to avoid those warnings.
+#
+# Note also that although clang defines __GNUC__, it doesn't support every
+# warning that GCC does.
 for f in ${path_to_hl_src}/H5LTparse.c ${path_to_hl_src}/H5LTanalyze.c
 do
     echo '#if defined (__GNUC__)                                            ' >> tmp.out
     echo '#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 402                    ' >> tmp.out
     echo '#pragma GCC diagnostic ignored "-Wconversion"                     ' >> tmp.out
     echo '#pragma GCC diagnostic ignored "-Wimplicit-function-declaration"  ' >> tmp.out
-    echo '#pragma GCC diagnostic ignored "-Wlarger-than="                   ' >> tmp.out
     echo '#pragma GCC diagnostic ignored "-Wmissing-prototypes"             ' >> tmp.out
     echo '#pragma GCC diagnostic ignored "-Wnested-externs"                 ' >> tmp.out
     echo '#pragma GCC diagnostic ignored "-Wold-style-definition"           ' >> tmp.out
@@ -234,8 +236,11 @@ do
     echo '#pragma GCC diagnostic ignored "-Wsign-conversion"                ' >> tmp.out
     echo '#pragma GCC diagnostic ignored "-Wstrict-overflow"                ' >> tmp.out
     echo '#pragma GCC diagnostic ignored "-Wstrict-prototypes"              ' >> tmp.out
+    echo '#if !defined (__clang__)                                          ' >> tmp.out
+    echo '#pragma GCC diagnostic ignored "-Wlarger-than="                   ' >> tmp.out
     echo '#pragma GCC diagnostic ignored "-Wsuggest-attribute=const"        ' >> tmp.out
     echo '#pragma GCC diagnostic ignored "-Wsuggest-attribute=pure"         ' >> tmp.out
+    echo '#endif                                                            ' >> tmp.out
     echo '#pragma GCC diagnostic ignored "-Wswitch-default"                 ' >> tmp.out
     echo '#pragma GCC diagnostic ignored "-Wunused-function"                ' >> tmp.out
     echo '#pragma GCC diagnostic ignored "-Wunused-macros"                  ' >> tmp.out
diff --git a/config/cmake/H5pubconf.h.in b/config/cmake/H5pubconf.h.in
index 5c2177a..6e797df 100644
--- a/config/cmake/H5pubconf.h.in
+++ b/config/cmake/H5pubconf.h.in
@@ -602,6 +602,7 @@
 #cmakedefine H5_SIZEOF_INT_LEAST8_T @H5_SIZEOF_INT_LEAST8_T@
 
 #if !defined(__APPLE__)
+
 /* The size of `size_t', as computed by sizeof. */
 #cmakedefine H5_SIZEOF_SIZE_T @H5_SIZEOF_SIZE_T@
 
@@ -611,8 +612,17 @@
 /* The size of `long', as computed by sizeof. */
 #cmakedefine H5_SIZEOF_LONG @H5_SIZEOF_LONG@
 
+/* The size of `long double', as computed by sizeof. */
+#cmakedefine H5_SIZEOF_LONG_DOUBLE @H5_SIZEOF_LONG_DOUBLE@
+
 #else
-   # if defined(__LP64__) && __LP64__
+
+  /* On Apple, to support Universal Binaries (where multiple CPU
+     architectures exist in one library/executable), we can't assume
+     the machine doing the compiling has the same endianness or type
+     sizes as all the various architectures (PowerPC, Intel, ARM). */
+
+  # if defined(__LP64__) && __LP64__
   #define H5_SIZEOF_LONG 8
   #define H5_SIZEOF_SIZE_T 8
   #define H5_SIZEOF_SSIZE_T 8
@@ -622,10 +632,15 @@
   #define H5_SIZEOF_SSIZE_T 4
   # endif
 
-#endif
+  # if defined(__i386__) || defined(__x86_64__)
+  #define H5_SIZEOF_LONG_DOUBLE 16
+  # elif defined(__aarch64__)
+  #define H5_SIZEOF_LONG_DOUBLE 8
+  # else
+  #cmakedefine H5_SIZEOF_LONG_DOUBLE @H5_SIZEOF_LONG_DOUBLE@
+  # endif
 
-/* The size of `long double', as computed by sizeof. */
-#cmakedefine H5_SIZEOF_LONG_DOUBLE @H5_SIZEOF_LONG_DOUBLE@
+#endif
 
 /* Define size of long long and/or __int64 bit integer type only if the type
    exists.  */
diff --git a/hl/examples/ex_ds1.c b/hl/examples/ex_ds1.c
index af8b581..09f398b 100644
--- a/hl/examples/ex_ds1.c
+++ b/hl/examples/ex_ds1.c
@@ -91,9 +91,11 @@ main(void)
     if (H5DSattach_scale(did, dsid, DIM1) < 0)
         goto out;
 
-    /* close DS id */
+    /* close DS ids */
     if (H5Dclose(dsid) < 0)
         goto out;
+    if (H5Dclose(did) < 0)
+        goto out;
 
     /* close file */
     H5Fclose(fid);
diff --git a/hl/fortran/examples/ex_ds1.f90 b/hl/fortran/examples/ex_ds1.f90
index b31ac8e..3e0048a 100644
--- a/hl/fortran/examples/ex_ds1.f90
+++ b/hl/fortran/examples/ex_ds1.f90
@@ -180,8 +180,9 @@ PROGRAM example_ds
 
   WRITE(*,'(/,5X,A,I0,2A,/)') 'Dimension Scale Label for dimension ', DIM2, ' is ... ', label(1:label_len)
 
- ! close DS id
+ ! close DS ids
   CALL H5Dclose_f(dsid, err)
+  CALL H5Dclose_f(did, err)
 
  ! close file
   CALL H5Fclose_f(fid, err)
diff --git a/hl/src/H5LTanalyze.c b/hl/src/H5LTanalyze.c
index 4adf3d3..3c6983a 100644
--- a/hl/src/H5LTanalyze.c
+++ b/hl/src/H5LTanalyze.c
@@ -2,7 +2,6 @@
 #if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 402                    
 #pragma GCC diagnostic ignored "-Wconversion"                     
 #pragma GCC diagnostic ignored "-Wimplicit-function-declaration"  
-#pragma GCC diagnostic ignored "-Wlarger-than="                   
 #pragma GCC diagnostic ignored "-Wmissing-prototypes"             
 #pragma GCC diagnostic ignored "-Wnested-externs"                 
 #pragma GCC diagnostic ignored "-Wold-style-definition"           
@@ -11,8 +10,11 @@
 #pragma GCC diagnostic ignored "-Wsign-conversion"                
 #pragma GCC diagnostic ignored "-Wstrict-overflow"                
 #pragma GCC diagnostic ignored "-Wstrict-prototypes"              
+#if !defined (__clang__)
+#pragma GCC diagnostic ignored "-Wlarger-than="                   
 #pragma GCC diagnostic ignored "-Wsuggest-attribute=const"        
 #pragma GCC diagnostic ignored "-Wsuggest-attribute=pure"         
+#endif
 #pragma GCC diagnostic ignored "-Wswitch-default"                 
 #pragma GCC diagnostic ignored "-Wunused-function"                
 #pragma GCC diagnostic ignored "-Wunused-macros"                  
diff --git a/hl/src/H5LTparse.c b/hl/src/H5LTparse.c
index 80de0a2..2ef133f 100644
--- a/hl/src/H5LTparse.c
+++ b/hl/src/H5LTparse.c
@@ -2,7 +2,6 @@
 #if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 402                    
 #pragma GCC diagnostic ignored "-Wconversion"                     
 #pragma GCC diagnostic ignored "-Wimplicit-function-declaration"  
-#pragma GCC diagnostic ignored "-Wlarger-than="                   
 #pragma GCC diagnostic ignored "-Wmissing-prototypes"             
 #pragma GCC diagnostic ignored "-Wnested-externs"                 
 #pragma GCC diagnostic ignored "-Wold-style-definition"           
@@ -11,8 +10,11 @@
 #pragma GCC diagnostic ignored "-Wsign-conversion"                
 #pragma GCC diagnostic ignored "-Wstrict-overflow"                
 #pragma GCC diagnostic ignored "-Wstrict-prototypes"              
+#if !defined (__clang__)
+#pragma GCC diagnostic ignored "-Wlarger-than="                   
 #pragma GCC diagnostic ignored "-Wsuggest-attribute=const"        
 #pragma GCC diagnostic ignored "-Wsuggest-attribute=pure"         
+#endif
 #pragma GCC diagnostic ignored "-Wswitch-default"                 
 #pragma GCC diagnostic ignored "-Wunused-function"                
 #pragma GCC diagnostic ignored "-Wunused-macros"                  
diff --git a/tools/lib/h5tools_dump.c b/tools/lib/h5tools_dump.c
index 98d7835..d60207b 100644
--- a/tools/lib/h5tools_dump.c
+++ b/tools/lib/h5tools_dump.c
@@ -329,7 +329,7 @@ h5tools_dump_simple_data(FILE *stream, const h5tool_format_t *info, h5tools_cont
  * Purpose: Print some values from an attribute referenced by object reference.
  *
  * Description:
- *      This is a special case subfunction to dump aa attribute references.
+ *      This is a special case subfunction to dump an attribute reference.
  *
  * Return:
  *      The function returns False if the last dimension has been reached, otherwise True