build-aux: update for _GLIBCXX_PROFILE.
build-aux: update for _GLIBCXX_PROFILE.

  > C++: use _GLIBCXX_PROFILE in debug compilation mode.
  > Merge remote-tracking branch 'origin/urbi-sdk/2.7'
  > Merge remote-tracking branch 'origin/urbi-sdk/2.7'
  > check-lib-deps: beware of new error messages with Wine.
  > versionify: backward compat for Jazz.
  > bootstrap: be more robust to missing tools.
  > bootstrap: support --require.

aldebaran/libport,aldebaran/libport,aldebaran/libport,aldebaran/libport,aldebaran/libport