Add/use accessor to global variable #11

Job	Run time
nmake workflow	9m 44s
autoconf workflow using Default	2m 53s
autoconf workflow using LLVM	3m 8s
autoconf workflow using Debug	5m 1s
autoconf workflow using Profiling	12m 28s
autoconf workflow using Address Sanitition	5m 56s
autoconf workflow using Thread Sanitition	2m 23s
autoconf workflow using No Optimization	3m 34s
autoconf workflow using Native Optimization	3m 30s
autoconf workflow using Static Library	2m 56s
autoconf workflow using zlib	3m 27s
autoconf workflow using zstd	3m 6s
autoconf workflow using lz4	3m 10s
autoconf workflow using lzma	3m 9s
autoconf workflow using most features	3m 3s
	1h 7m 28s

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