Revert the following commits

Revert "Emacs: Don't enable ARC support"

This reverts commit c5a9f2a9cdf868a09bd73cc500a62aa59bb1cf29.

Revert "Emacs: make bootstrap"

This reverts commit b9bc0583b7c44240d9157966352751f55c612a5d.

Revert "Emacs 24.3 Mac port 4.0"

This reverts commit 6dc86ed8774ee02076068c5231e1ab4cc9d54488.
Emacs: Enable parallel build
DDSKK 15.1