I have encountered some GNU make code with the following construction: target_list: variable_name=variable_value
The intent appears to be the "conditional macro" idea that I have seen elsewhere, such that a rule which executes a target from this list will execute its commands in an environment where variable_name has the indicated value, even though that value might be different for targets not on the list. However, I have found no documentation for the above syntax. Is this a supported construction? Thanks, Don Haire
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