Future-proof the ./configure script - #28

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Commits on Oct 3, 2022

rbldnsd_util.c: fix two comment typos.
orlitzky
committed
885a2e5
configure.lib: fix main() signature in test program.
orlitzky
committed
5a32b4a
configure: fix main() signatures in test programs.
orlitzky
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acf93f6
configure: improve standards-compliance of two test programs.
orlitzky
committed
cbdf653
configure: use a valid program for the connect() library test.
orlitzky
committed
4cdc03a