Various fixes/cleanups - #39

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N-R-K wants to merge 4 commits into

dudik:masterfrom

N-R-K:various_fixes

Commits on Apr 16, 2022

conform to the C and POSIX standard
N-R-K
committed
3dc4058
rebuild on Makefile changes
N-R-K
committed
b6404ce
more strict error checking
N-R-K
committed
fd48b9d
add missing static qualifier
N-R-K
committed
709105c