Re: ETHERMTU

[Guy Harris <guy () alum mit edu>]

Saikiran Madugula wrote:
> I ran into this problem when I was trying to compile libpcap with a 
> package which has support for a custom interface in Linux. I get a 
> warning message about redefining ETHERMTU while compiling that package 
> as the package uses net/ethernet.h.

Do you get a warning message *when gencode.c is compiled*?

If not, then there isn't a problem with gencode.c.

> if gencode.c (or any other code) is indeed intended for use across 
> several operating systems then it should be careful not pollute name 
> space of the platforms it intends to be used on.

gencode.c isn't polluting the name space.  Source files don't pollute 
the name space - header files, such as ethernet.h, do.  It's impossible 
to avoid using names that *might* be defined by *some* header file on a 
system - even if you manage to avoid every name defined by the header 
files in one release of a system, the next release might add a new symbol.
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