In addition to [Cross Toolchain] Droid Overlay maintains pacman and makepkg wrappers (command-line scripts, calling another executables with different parameters). These wrappers are called makepkg-archdroid and pacman-archdroid and can be installed from "toolchain" subdirectory of the Droid Overlay git tree. Users, who compile Droid Overlay ARM packages, are supposed to use these wrappers in place of pacman and makepkg.
These tools do roughly following things:
As of [code:7dd4d3] build tools allow building virtually all pure C/C++ applications, using autoconf, from unmodified Arch Linux ARM PKGBUILDs.