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add default constraints on the case subst:foo.in->foo.h for convenience purposes

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This commit is contained in:
Thomas Nagy 2012-04-08 21:24:42 +02:00
parent 2477e19cbd
commit 062c5cae1a
1 changed files with 6 additions and 0 deletions
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6
waflib/TaskGen.py
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@ -786,12 +786,18 @@ def process_subst(self):
if not a:
raise Errors.WafError('cound not find %r for %r' % (x, self))
has_constraints = False
tsk = self.create_task('subst', a, b)
for k in ('after', 'before', 'ext_in', 'ext_out'):
val = getattr(self, k, None)
if val:
has_constraints = True
setattr(tsk, k, val)
# paranoid safety measure for the general case foo.in->foo.h with ambiguous dependencies
if not has_constraints and b.name.endswith('.h'):
tsk.before = [k for k in ('c', 'cxx') if k in Task.classes]
inst_to = getattr(self, 'install_path', None)
if inst_to:
self.bld.install_files(inst_to, tgt, chmod=getattr(self, 'chmod', Utils.O644))