Most variable names are considered to have the empty string as a value

Edition 0.75, last updated 17 January 2020, of The GNU Make Manual, for GNUmake version 4.3, PDF document downloaded newly from GNU Make web Page 68, ch. 6.5 Setting Variables Hi, Mentioned chapter quoted: " variable names are considered to have the empty string as a value". I wonder is not on

Most variable names are considered to have the empty string as a value

Edition 0.75, last updated 17 January 2020, of The GNU Make Manual, for GNUmake version 4.3, PDF document downloaded newly from GNU Make web Page 68, ch. 6.5 Setting Variables Hi, Mentioned chapter quoted: " The variable name may contain function and variable references...". It sounds like it