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codegen: make yacc args compatible with byacc #15798

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bonzini merged 1 commit into from
May 11, 2026
+2 −1
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codegen: make yacc args compatible with byacc #15798

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3 changes: 2 additions & 1 deletion mesonbuild/modules/codegen.py
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Original file line number Diff line number Diff line change
Expand Up @@ -411,7 +411,7 @@ def yacc_method(self, state: ModuleState, args: T.Tuple, kwargs: FindYaccKwargs)
node=state.current_node)
return YaccGenerator(name, bin)

yacc_args: T.List[str] = ['@INPUT@', '-o', '@OUTPUT0@']
yacc_args: T.List[str] = []

impl = T.cast('YaccImpls', bin.name)
if impl == 'yacc' and isinstance(bin, ExternalProgram):
Expand All @@ -433,6 +433,7 @@ def yacc_method(self, state: ModuleState, args: T.Tuple, kwargs: FindYaccKwargs)
'output location be configurable, and may not work.',
fatal=False)
yacc_args.append('-H')
yacc_args.extend(['-o', '@OUTPUT0@', '@INPUT@'])
return YaccGenerator(name, bin, T.cast('ImmutableListProtocol[str]', yacc_args))


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