* Updated source file copyright headers to remove "Copyright by the Board of Trustees
of the University of Illinois", which is kept in the top-level COPYING file.
* Avoid maintenance headaches: delete the `noerror-` variants of the
compiler flags files, since they essentially duplicate the `error-`
files modulo the replacement of `-Werror=` with `-W` and any changes in
comments. (I verified the duplication with a script.)
For autoconf, reinstate the use of the `demote_errors` shell function to
derive the `noerror-` content from the `error-` content. `demote_errors`
replaces `-Werror=` with `-W` when `WARNINGS_AS_ERRORS` is `no`.
Slightly reorder `configure.ac` so that the setting of
`WARNINGS_AS_ERRORS` takes effect before the `error-` files are sourced.
* Take a stab at updating the CMake files to match the changes I made to
the autoconf files to remove `noerror-` files. I'm not much of a CMake
user so these changes are quite rough.
Looks like the duplication can be reduced with the introduction of a new
macro.
* Delete `noerror-` files from the MANIFEST.
* Reduce duplication in the CMake files: perform the
HDF5_ENABLE_WARNINGS_AS_ERRORS test once in the ADD_H5_FLAGS macro.
* Add a release note.
* Modify temporary rpath for testing in java example scripts.
* Update URL in source file Copyright headers for web copy of COPYING
file - files not in src or test.
* Fixes clang debug optimization level w/ Autotools
NOTE: This was only released in HDF5 1.10.7, so only the 1.10
branch needs a note in RELEASE.txt.
* Updates the clang -Og setting with a version check w/ autotools
* Sets -Og when clang >= 4.0 or Xcode >= 9.0
* Older versions get -O1
* Autotools only
