So if you imagine each function call as creating a new environment, an
environment being a dictionary of key value pairs that stores variables we
define locally AND a “parent pointer” to another environment, then we can
define lexical vs dynamic scoping as follows:
Lexical: the parent pointer in a
* NEWS: Use "local" instead of the incorrect "lexically-scoped".
* doc/make.texi: Refer to let/foreach variables as local variables.
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This is an erratum on the addition of $(let ...). During an early review
of $(let ...), thutt cautioned that it did not implement "full semantic
scoping" [sic]. W
