parrot/parrot — pull request #863 by mvorl (2012-10-18 16:49:44+00:00)
Title: Change some dependency rules to make them work with VMS make

The VMS make utilities MMS/MMK always need an action if they determine that a target is
older than a denpendency element.

Besides, rules like

some/header.h : some/source.c

some/source.c : some/file.dump
$(PMC2CC) some/source.pmc

don't reflect the building process, as both the C and header file are generated
by the $(PMCCC) call.