warning: return type of 'main' is not 'int'

During the installation of netqmail-1.05 and qmail-1.3 you can see several errors when you run the "make setup check" command.

One of these errors is:

"warning: return type of 'main' is not `int'"

This is because qmail isn't written in ANSI C, and doesn't conform to gcc's ideas of clean C code. This is not a problem or something to worry about.

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