pkgload 1.4.1

• load_all() now supports explicit debug option to control using debug compiler flags (#224, @assaron).

• The generator of compile_commands.json now works with packages that compile extra libraries such as ragg.

• The generator of compile_commands.json now works with sources in subdirectories (#308, @krlmlr).

• The generator of compile_commands.json now checks for existing R_SHARE_DIR
  and R_INCLUDE_DIR environment variables (#287, #296, @TimTaylor and
  @shikokuchuo).

• The generator of compile_commands.json is now more reliable in the presence
  of extra whitespace in make's output (#288, @TimTaylor).

• The generator of compile_commands.json now uses escaped double quotes for LinkingTo packages to ensure valid argument strings when parsed on Windows (#305, @tylermorganwall).