message: Workaround for missing C99 meta feature
diff: @@ -7,7 +7,11 @@ add_library(sst
  cp/ffs_marshal.c
  )
  -target_compile_features(sst PRIVATE c_std_99)
  +# Ideally we'd like to use the c_std_99 meta feature, but that wasn't available
  +# until CMake 3.8. However, requiring the c_restrict feature effectively
  +# achieves the same result since it's a C99 feature
  +target_compile_features(sst PRIVATE c_restrict)
  +
  target_include_directories(sst PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
  target_link_libraries(sst PRIVATE EVPath::EVPath)
  target_link_libraries(sst PUBLIC MPI::MPI_C)
  