meson: error out in script if gperf preprocessing failed
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@ -12,7 +12,7 @@ if __name__== '__main__':
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print (args[0].output)
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cpp = args[1]
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ret = subprocess.run(cpp + [args[0].input], stdout=subprocess.PIPE)
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ret = subprocess.run(cpp + [args[0].input], stdout=subprocess.PIPE, check=True)
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stdout = ret.stdout.decode('utf8')
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