CMake - Match Autotools behavior for library instrumentation (#2648) (#…

…2672)

CMakeLists.txt

@@ -647,9 +647,15 @@ option (HDF5_BUILD_GENERATORS "Build Test Generators" OFF)
 #-----------------------------------------------------------------------------
 option (HDF5_ENABLE_TRACE "Enable API tracing capability" OFF)
 mark_as_advanced (HDF5_ENABLE_TRACE)
-if (${HDF_CFG_NAME} MATCHES "Debug")
+if (${HDF_CFG_NAME} MATCHES "Debug" OR ${HDF_CFG_NAME} MATCHES "Developer")
   # Enable instrumenting of the library's internal operations
   option (HDF5_ENABLE_INSTRUMENT "Instrument The library" OFF)
+
+  # Instrumenting is enabled by default for parallel debug builds
+  if (HDF5_ENABLE_PARALLEL)
+    set (HDF5_ENABLE_INSTRUMENT ON CACHE BOOL "Instrument The library" FORCE)
+  endif ()
+
   if (HDF5_ENABLE_INSTRUMENT)
     set (H5_HAVE_INSTRUMENTED_LIBRARY 1)
   endif ()

release_docs/RELEASE.txt

@@ -49,8 +49,15 @@ New Features
 
     Configuration:
     -------------
-    -
+    - Enabled instrumentation of the library by default in CMake for parallel
+      debug builds
+
+      HDF5 can be configured to instrument portions of the parallel library to
+      aid in debugging. Autotools builds of HDF5 turn this capability on by
+      default for parallel debug builds and off by default for other build types.
+      CMake has been updated to match this behavior.
 
+      (JTH - 2023/03/29)
 
     Library:
     --------