build

Remove gstats_label_ifs to avoid name clash #234

Job	Run time
ci (Release, linux gnu-10)	2m 8s
ci (Release, linux clang-12)	1m 47s
ci (Release, linux nvhpc-21.9)	14m 12s
ci (Release, linux intel-classic)	12m 12s
ci (Release, macos)	23m 50s
ci (Debug, linux gnu-10)	3m 28s
ci (Debug, linux clang-12)	1m 56s
ci (Debug, linux nvhpc-21.9)	16m 57s
ci (Debug, linux intel-classic)	15m 24s
ci (Debug, macos)	23m 43s
	1h 55m 37s

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