Remove obsolete Makefile .NOEXPORT target #13734
Merged
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This was once used on GNU Make from versions 3.59 to 3.63 (released in 1994) to not export all variables, otherwise a system limit may be exceeded. This was the case for the obsolete UNIX System V (SysV) and is on current systems not applicable anymore, with such target ignored.
P.S.: I find these museum features really fascinating because you can learn really a lot but it's also kind of redundant in today's code and causes only bloat since there isn't any documentation anymore about this.