michael@0: import pymake.data
michael@0: import pymake.parser
michael@0: import pymake.parserdata
michael@0: import sys
michael@0: 
michael@0: '''
michael@0: Modifies the output of Sun Studio's -xM to look more like the output
michael@0: of gcc's -MD -MP, adding phony targets for dependencies.
michael@0: '''
michael@0: 
michael@0: 
michael@0: def add_phony_targets(path):
michael@0:     print path
michael@0:     deps = set()
michael@0:     targets = set()
michael@0:     for stmt in pymake.parser.parsefile(path):
michael@0:         if isinstance(stmt, pymake.parserdata.Rule):
michael@0:             assert isinstance(stmt.depexp, pymake.data.StringExpansion)
michael@0:             assert isinstance(stmt.targetexp, pymake.data.StringExpansion)
michael@0:             for d in stmt.depexp.s.split():
michael@0:                 deps.add(d)
michael@0:             for t in stmt.targetexp.s.split():
michael@0:                 targets.add(t)
michael@0:     phony_targets = deps - targets
michael@0:     if not phony_targets:
michael@0:         return
michael@0:     with open(path, 'a') as f:
michael@0:         f.writelines('%s:\n' % d for d in phony_targets)
michael@0: 
michael@0: 
michael@0: if __name__ == '__main__':
michael@0:     for f in sys.argv[1:]:
michael@0:         add_phony_targets(f)