"Amker.Cheng" wrote: > Here the destination directory is $(DESTDIR)$(libexecsubdir)/, but > where is DESTDIR defined? > I did not find any definition of this variable in both toplevel and > gcc's makefile.
It's intentionally not defined anywhere as it's expected to remain unset unless the user overrides it. See <http://www.gnu.org/prep/standards/standards.html#DESTDIR>. Brian
