[lwip-devel] [patch #7130] mib2.c: remove meaningless const qualifiers

[Bill Auerbach]

Follow-up Comment #15, patch #7130 (project lwip):

It's not a syntax error - it's a semantic error that some compilers have
decided to warn about an unnecessary pointer qualifier.  Just like some
compilers say the & on a function is not needed and others don't.

This construct (initializer) is NOT portable.  There should be a struct with
the common area up front and a union of structs to make the nodes different
based on that MB_NODE_xxx goodie.  This probably works because the structs
start out the same and are pointers, but I wouldn't have done it this way.

I don't insist anyone change it either :) Unless someone shows up and says it
won't work this way on their platform.

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