Commits
Merge pull request #2633 in HDFFV/hdf5 from ~LRKNOX/hdf5_lrk:develop to develop * commit '20eab963899841c9a003baebead8e3bc07d9e127': Remove duplicate entries in MANIFEST. Make changes to CMake CompilerFlags.cmake files so extra flags are loaded for non-GNU compilers. Update new clang files to not pick up clang as vendor for pgCC. Add new files to MANIFEST Temporary demotion of 2 -Werror warning flags that fail on macos 10.12 Remove Production flag unknown to Apple clang.
