1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/build/unix/add_phony_targets.py Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,33 @@
1.4 +import pymake.data
1.5 +import pymake.parser
1.6 +import pymake.parserdata
1.7 +import sys
1.8 +
1.9 +'''
1.10 +Modifies the output of Sun Studio's -xM to look more like the output
1.11 +of gcc's -MD -MP, adding phony targets for dependencies.
1.12 +'''
1.13 +
1.14 +
1.15 +def add_phony_targets(path):
1.16 + print path
1.17 + deps = set()
1.18 + targets = set()
1.19 + for stmt in pymake.parser.parsefile(path):
1.20 + if isinstance(stmt, pymake.parserdata.Rule):
1.21 + assert isinstance(stmt.depexp, pymake.data.StringExpansion)
1.22 + assert isinstance(stmt.targetexp, pymake.data.StringExpansion)
1.23 + for d in stmt.depexp.s.split():
1.24 + deps.add(d)
1.25 + for t in stmt.targetexp.s.split():
1.26 + targets.add(t)
1.27 + phony_targets = deps - targets
1.28 + if not phony_targets:
1.29 + return
1.30 + with open(path, 'a') as f:
1.31 + f.writelines('%s:\n' % d for d in phony_targets)
1.32 +
1.33 +
1.34 +if __name__ == '__main__':
1.35 + for f in sys.argv[1:]:
1.36 + add_phony_targets(f)
